./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.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 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 01:56:49,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:56:49,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:56:50,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:56:50,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:56:50,063 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:56:50,064 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:56:50,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:56:50,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:56:50,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:56:50,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:56:50,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:56:50,077 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:56:50,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:56:50,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:56:50,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:56:50,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:56:50,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:56:50,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:56:50,092 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:56:50,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:56:50,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:56:50,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:56:50,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:56:50,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:56:50,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:56:50,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:56:50,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:56:50,104 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:56:50,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:56:50,105 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:56:50,106 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:56:50,107 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:56:50,108 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:56:50,109 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:56:50,109 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:56:50,110 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:56:50,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:56:50,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:56:50,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:56:50,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:56:50,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 01:56:50,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:56:50,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:56:50,143 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 01:56:50,143 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 01:56:50,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:56:50,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:56:50,145 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 01:56:50,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:56:50,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:56:50,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:56:50,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:56:50,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:56:50,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:56:50,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:56:50,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:56:50,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:56:50,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:56:50,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 01:56:50,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 01:56:50,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:56:50,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:56:50,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:56:50,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:56:50,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 01:56:50,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:56:50,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 01:56:50,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 01:56:50,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:56:50,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 01:56:50,150 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c42c8b471bd3f5eb0961ccb5a29636ff44887b239ea3f28bd7f2f4f7de76e57 [2021-11-23 01:56:50,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:56:50,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:56:50,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:56:50,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:56:50,412 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:56:50,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2021-11-23 01:56:50,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5afa3cf5/05560cb0c0f14bdcb7c5d1996755afe8/FLAG44d3352ea [2021-11-23 01:56:51,264 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:56:51,264 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2021-11-23 01:56:51,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5afa3cf5/05560cb0c0f14bdcb7c5d1996755afe8/FLAG44d3352ea [2021-11-23 01:56:51,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5afa3cf5/05560cb0c0f14bdcb7c5d1996755afe8 [2021-11-23 01:56:51,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:56:51,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:56:51,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:51,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:56:51,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:56:51,779 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:51" (1/1) ... [2021-11-23 01:56:51,780 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5093b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:51, skipping insertion in model container [2021-11-23 01:56:51,780 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:56:51" (1/1) ... [2021-11-23 01:56:51,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:56:51,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:56:54,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2021-11-23 01:56:54,876 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-23 01:56:54,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:54,923 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:56:55,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i[465063,465076] [2021-11-23 01:56:55,499 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-23 01:56:55,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:56:55,597 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:56:55,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55 WrapperNode [2021-11-23 01:56:55,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:56:55,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:56:55,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:56:55,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:56:55,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:56:55,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:02,517 INFO L137 Inliner]: procedures = 391, calls = 6617, calls flagged for inlining = 1610, calls inlined = 24807, statements flattened = 368648 [2021-11-23 01:57:02,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:57:02,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:57:02,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:57:02,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:57:02,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:02,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:04,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:04,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:07,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:08,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:09,096 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:10,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:57:10,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:57:10,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:57:10,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:57:10,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (1/1) ... [2021-11-23 01:57:10,246 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 01:57:10,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 01:57:10,282 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) [2021-11-23 01:57:10,287 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 [2021-11-23 01:57:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_hub_control [2021-11-23 01:57:10,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_hub_control [2021-11-23 01:57:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 01:57:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:57:10,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:57:10,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 01:57:10,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:57:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:57:10,312 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2021-11-23 01:57:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2021-11-23 01:57:10,312 INFO L130 BoogieDeclarations]: Found specification of procedure otg_start_hnp [2021-11-23 01:57:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure otg_start_hnp [2021-11-23 01:57:10,312 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_handover_companion_ports [2021-11-23 01:57:10,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_handover_companion_ports [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure start_iaa_cycle [2021-11-23 01:57:10,313 INFO L138 BoogieDeclarations]: Found implementation of procedure start_iaa_cycle [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure strcat [2021-11-23 01:57:10,313 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_bus_resume [2021-11-23 01:57:10,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_bus_resume [2021-11-23 01:57:10,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 01:57:10,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:57:12,151 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:57:12,153 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:02:50,604 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint debugfs_remove_returnLabel#2: assume { :end_inline_debugfs_remove } true;~ehci_debug_root~0.base, ~ehci_debug_root~0.offset := 0, 0; [2021-11-23 02:04:05,266 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:04:05,466 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:04:05,466 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:04:05,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:05 BoogieIcfgContainer [2021-11-23 02:04:05,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:04:05,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:04:05,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:04:05,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:04:05,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:56:51" (1/3) ... [2021-11-23 02:04:05,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e549d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:05, skipping insertion in model container [2021-11-23 02:04:05,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:56:55" (2/3) ... [2021-11-23 02:04:05,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27e549d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:05, skipping insertion in model container [2021-11-23 02:04:05,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:05" (3/3) ... [2021-11-23 02:04:05,518 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--ehci-hcd.ko-entry_point.cil.out.i [2021-11-23 02:04:05,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:04:05,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 345 error locations. [2021-11-23 02:04:05,683 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:04:05,691 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:04:05,692 INFO L340 AbstractCegarLoop]: Starting to check reachability of 345 error locations. [2021-11-23 02:04:06,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 57541 states, 57128 states have (on average 1.3823519114969893) internal successors, (78971), 57508 states have internal predecessors, (78971), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-23 02:04:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:04:06,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:06,652 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:06,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ehci_hub_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 342 more)] === [2021-11-23 02:04:06,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:06,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1095649540, now seen corresponding path program 1 times [2021-11-23 02:04:06,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:04:06,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861542284] [2021-11-23 02:04:06,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:06,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:04:07,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:04:07,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861542284] [2021-11-23 02:04:07,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861542284] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:07,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:07,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:04:07,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144000218] [2021-11-23 02:04:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:07,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:04:07,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:04:07,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:04:07,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:04:07,902 INFO L87 Difference]: Start difference. First operand has 57541 states, 57128 states have (on average 1.3823519114969893) internal successors, (78971), 57508 states have internal predecessors, (78971), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:10,292 INFO L93 Difference]: Finished difference Result 114733 states and 157848 transitions. [2021-11-23 02:04:10,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:04:10,294 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:04:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:10,598 INFO L225 Difference]: With dead ends: 114733 [2021-11-23 02:04:10,599 INFO L226 Difference]: Without dead ends: 57047 [2021-11-23 02:04:10,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:04:10,955 INFO L933 BasicCegarLoop]: 77609 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77609 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:10,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 77609 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:04:11,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57047 states. [2021-11-23 02:04:12,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57047 to 57047. [2021-11-23 02:04:13,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57047 states, 56635 states have (on average 1.3641387834378034) internal successors, (77258), 57014 states have internal predecessors, (77258), 60 states have call successors, (60), 7 states have call predecessors, (60), 7 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-23 02:04:13,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57047 states to 57047 states and 77378 transitions. [2021-11-23 02:04:13,435 INFO L78 Accepts]: Start accepts. Automaton has 57047 states and 77378 transitions. Word has length 139 [2021-11-23 02:04:13,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:13,435 INFO L470 AbstractCegarLoop]: Abstraction has 57047 states and 77378 transitions. [2021-11-23 02:04:13,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.5) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:13,436 INFO L276 IsEmpty]: Start isEmpty. Operand 57047 states and 77378 transitions. [2021-11-23 02:04:13,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 02:04:13,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:13,448 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:13,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:04:13,449 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ehci_hub_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 342 more)] === [2021-11-23 02:04:13,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1738633822, now seen corresponding path program 1 times [2021-11-23 02:04:13,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:04:13,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779138380] [2021-11-23 02:04:13,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:13,452 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:14,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:14,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:04:14,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:04:14,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779138380] [2021-11-23 02:04:14,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779138380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:14,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:14,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:14,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61122725] [2021-11-23 02:04:14,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:14,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:14,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:04:14,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:14,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:14,952 INFO L87 Difference]: Start difference. First operand 57047 states and 77378 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:18,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:18,554 INFO L93 Difference]: Finished difference Result 170807 states and 231736 transitions. [2021-11-23 02:04:18,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:04:18,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-23 02:04:18,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:19,000 INFO L225 Difference]: With dead ends: 170807 [2021-11-23 02:04:19,000 INFO L226 Difference]: Without dead ends: 113889 [2021-11-23 02:04:19,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:19,182 INFO L933 BasicCegarLoop]: 77436 mSDtfsCounter, 77276 mSDsluCounter, 77212 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77276 SdHoareTripleChecker+Valid, 154648 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:19,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77276 Valid, 154648 Invalid, 17 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:04:19,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113889 states. [2021-11-23 02:04:21,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113889 to 113145. [2021-11-23 02:04:21,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113145 states, 112667 states have (on average 1.3656971429078613) internal successors, (153869), 113081 states have internal predecessors, (153869), 119 states have call successors, (119), 14 states have call predecessors, (119), 14 states have return successors, (119), 119 states have call predecessors, (119), 119 states have call successors, (119) [2021-11-23 02:04:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113145 states to 113145 states and 154107 transitions. [2021-11-23 02:04:22,313 INFO L78 Accepts]: Start accepts. Automaton has 113145 states and 154107 transitions. Word has length 139 [2021-11-23 02:04:22,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:22,316 INFO L470 AbstractCegarLoop]: Abstraction has 113145 states and 154107 transitions. [2021-11-23 02:04:22,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 113145 states and 154107 transitions. [2021-11-23 02:04:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-23 02:04:22,318 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:22,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:22,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:04:22,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ehci_hub_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 342 more)] === [2021-11-23 02:04:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:22,320 INFO L85 PathProgramCache]: Analyzing trace with hash 827120330, now seen corresponding path program 1 times [2021-11-23 02:04:22,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:04:22,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359863164] [2021-11-23 02:04:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:22,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:04:23,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:04:23,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359863164] [2021-11-23 02:04:23,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359863164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:23,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:23,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:23,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316489266] [2021-11-23 02:04:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:23,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:23,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:04:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:23,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:23,293 INFO L87 Difference]: Start difference. First operand 113145 states and 154107 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:27,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:04:27,582 INFO L93 Difference]: Finished difference Result 338998 states and 461798 transitions. [2021-11-23 02:04:27,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:04:27,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-11-23 02:04:27,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:04:28,799 INFO L225 Difference]: With dead ends: 338998 [2021-11-23 02:04:28,799 INFO L226 Difference]: Without dead ends: 225982 [2021-11-23 02:04:29,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:29,021 INFO L933 BasicCegarLoop]: 77523 mSDtfsCounter, 77234 mSDsluCounter, 77212 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77234 SdHoareTripleChecker+Valid, 154735 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:04:29,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [77234 Valid, 154735 Invalid, 17 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:04:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225982 states. [2021-11-23 02:04:33,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225982 to 225278. [2021-11-23 02:04:33,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225278 states, 224669 states have (on average 1.366485808010896) internal successors, (307007), 225153 states have internal predecessors, (307007), 236 states have call successors, (236), 28 states have call predecessors, (236), 28 states have return successors, (236), 236 states have call predecessors, (236), 236 states have call successors, (236) [2021-11-23 02:04:34,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225278 states to 225278 states and 307479 transitions. [2021-11-23 02:04:34,294 INFO L78 Accepts]: Start accepts. Automaton has 225278 states and 307479 transitions. Word has length 141 [2021-11-23 02:04:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:04:34,308 INFO L470 AbstractCegarLoop]: Abstraction has 225278 states and 307479 transitions. [2021-11-23 02:04:34,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:04:34,309 INFO L276 IsEmpty]: Start isEmpty. Operand 225278 states and 307479 transitions. [2021-11-23 02:04:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-23 02:04:34,314 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:04:34,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:04:34,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:04:34,315 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr275ASSERT_VIOLATIONERROR_FUNCTION === [ehci_hub_controlErr0ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr1ASSERT_VIOLATIONERROR_FUNCTION, ehci_hub_controlErr2ASSERT_VIOLATIONERROR_FUNCTION (and 342 more)] === [2021-11-23 02:04:34,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:04:34,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1305987314, now seen corresponding path program 1 times [2021-11-23 02:04:34,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 02:04:34,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32884626] [2021-11-23 02:04:34,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:04:34,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:04:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:04:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:04:34,864 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 02:04:34,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32884626] [2021-11-23 02:04:34,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32884626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:04:34,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:04:34,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:04:34,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078561217] [2021-11-23 02:04:34,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:04:34,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:04:34,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 02:04:34,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:04:34,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:04:34,867 INFO L87 Difference]: Start difference. First operand 225278 states and 307479 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)