./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-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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-08_1a-drivers--usb--host--oxu210hp-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 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-02 20:44:47,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 20:44:47,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 20:44:47,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 20:44:47,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 20:44:47,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 20:44:47,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 20:44:47,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 20:44:47,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 20:44:47,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 20:44:47,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 20:44:47,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 20:44:47,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 20:44:47,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 20:44:47,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 20:44:47,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 20:44:47,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 20:44:47,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 20:44:47,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 20:44:47,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 20:44:47,509 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 20:44:47,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 20:44:47,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 20:44:47,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 20:44:47,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 20:44:47,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 20:44:47,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 20:44:47,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 20:44:47,520 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 20:44:47,521 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 20:44:47,521 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 20:44:47,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 20:44:47,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 20:44:47,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 20:44:47,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 20:44:47,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 20:44:47,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 20:44:47,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 20:44:47,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 20:44:47,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 20:44:47,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 20:44:47,530 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 20:44:47,557 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 20:44:47,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 20:44:47,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 20:44:47,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 20:44:47,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 20:44:47,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 20:44:47,559 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 20:44:47,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 20:44:47,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 20:44:47,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 20:44:47,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 20:44:47,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 20:44:47,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 20:44:47,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 20:44:47,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 20:44:47,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 20:44:47,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 20:44:47,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 20:44:47,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 20:44:47,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:44:47,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 20:44:47,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 20:44:47,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 20:44:47,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 20:44:47,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 20:44:47,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 20:44:47,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 20:44:47,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 20:44:47,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 20:44:47,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f [2021-11-02 20:44:47,807 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 20:44:47,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 20:44:47,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 20:44:47,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 20:44:47,832 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 20:44:47,832 INFO L432 ainManager$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-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-11-02 20:44:47,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fd018b7/3398a8b2aa514b879412557deaba0c1e/FLAG3d5ca6c12 [2021-11-02 20:44:48,606 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 20:44:48,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-11-02 20:44:48,640 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fd018b7/3398a8b2aa514b879412557deaba0c1e/FLAG3d5ca6c12 [2021-11-02 20:44:48,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21fd018b7/3398a8b2aa514b879412557deaba0c1e [2021-11-02 20:44:48,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 20:44:48,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 20:44:48,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 20:44:48,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 20:44:48,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 20:44:48,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:48" (1/1) ... [2021-11-02 20:44:48,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c5fd291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:48, skipping insertion in model container [2021-11-02 20:44:48,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:44:48" (1/1) ... [2021-11-02 20:44:48,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 20:44:48,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 20:44:50,418 WARN L228 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-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2021-11-02 20:44:50,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:44:50,469 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 20:44:50,837 WARN L228 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-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2021-11-02 20:44:50,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 20:44:50,908 INFO L208 MainTranslator]: Completed translation [2021-11-02 20:44:50,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50 WrapperNode [2021-11-02 20:44:50,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 20:44:50,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 20:44:50,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 20:44:50,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 20:44:50,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:44:51,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:44:57,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 20:44:57,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 20:44:57,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 20:44:57,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 20:44:57,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:44:57,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:44:58,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:44:58,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:45:01,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:45:02,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:45:02,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:45:03,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 20:45:03,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 20:45:03,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 20:45:03,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 20:45:03,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (1/1) ... [2021-11-02 20:45:03,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 20:45:03,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 20:45:03,173 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) [2021-11-02 20:45:03,175 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 [2021-11-02 20:45:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2021-11-02 20:45:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2021-11-02 20:45:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-02 20:45:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-02 20:45:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 20:45:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 20:45:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2021-11-02 20:45:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2021-11-02 20:45:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2021-11-02 20:45:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2021-11-02 20:45:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2021-11-02 20:45:03,200 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2021-11-02 20:45:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 20:45:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 20:45:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-02 20:45:03,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2021-11-02 20:45:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2021-11-02 20:45:03,201 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 20:45:03,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 20:45:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2021-11-02 20:45:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2021-11-02 20:45:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 20:45:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 20:45:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-02 20:45:03,202 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-02 20:45:03,202 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2021-11-02 20:45:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2021-11-02 20:45:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2021-11-02 20:45:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2021-11-02 20:45:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 20:45:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2021-11-02 20:45:03,203 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2021-11-02 20:45:03,203 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2021-11-02 20:45:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2021-11-02 20:45:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 20:45:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 20:45:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-02 20:45:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2021-11-02 20:45:03,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2021-11-02 20:45:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2021-11-02 20:45:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2021-11-02 20:45:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 20:45:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 20:45:03,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 20:45:43,100 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 20:45:43,101 INFO L299 CfgBuilder]: Removed 33120 assume(true) statements. [2021-11-02 20:45:43,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:43 BoogieIcfgContainer [2021-11-02 20:45:43,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 20:45:43,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 20:45:43,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 20:45:43,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 20:45:43,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:44:48" (1/3) ... [2021-11-02 20:45:43,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac71e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:43, skipping insertion in model container [2021-11-02 20:45:43,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:44:50" (2/3) ... [2021-11-02 20:45:43,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac71e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:45:43, skipping insertion in model container [2021-11-02 20:45:43,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:45:43" (3/3) ... [2021-11-02 20:45:43,146 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2021-11-02 20:45:43,151 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 20:45:43,151 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-02 20:45:43,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 20:45:43,300 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 [2021-11-02 20:45:43,300 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-02 20:45:43,934 INFO L276 IsEmpty]: Start isEmpty. Operand has 36750 states, 36566 states have (on average 1.409314663895422) internal successors, (51533), 36608 states have internal predecessors, (51533), 166 states have call successors, (166), 16 states have call predecessors, (166), 16 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166) [2021-11-02 20:45:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-02 20:45:43,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 20:45:43,944 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] [2021-11-02 20:45:43,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-02 20:45:43,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 20:45:43,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1937582604, now seen corresponding path program 1 times [2021-11-02 20:45:43,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 20:45:43,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039533396] [2021-11-02 20:45:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 20:45:43,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 20:45:44,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 20:45:44,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 20:45:44,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 20:45:44,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039533396] [2021-11-02 20:45:44,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039533396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 20:45:44,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 20:45:44,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 20:45:44,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144677906] [2021-11-02 20:45:44,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 20:45:44,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 20:45:44,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 20:45:44,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 20:45:44,886 INFO L87 Difference]: Start difference. First operand has 36750 states, 36566 states have (on average 1.409314663895422) internal successors, (51533), 36608 states have internal predecessors, (51533), 166 states have call successors, (166), 16 states have call predecessors, (166), 16 states have return successors, (166), 166 states have call predecessors, (166), 166 states have call successors, (166) Second operand has 2 states, 2 states have (on average 37.5) internal successors, (75), 2 states have internal predecessors, (75), 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)