./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-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --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 57d203c2bb9e5fb46a500992932f18e1bc69473edc196ab4ca3ccbbd153a7dab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:11,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:11,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:09:11,400 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:11,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:11,440 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:11,441 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:11,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:11,443 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:09:11,443 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:09:11,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:09:11,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:09:11,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:11,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:11,447 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:11,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:11,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:09:11,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:11,449 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:11,449 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:09:11,450 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:09:11,451 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:09:11,451 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:11,452 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:11,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:11,453 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:11,453 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:09:11,454 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:09:11,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:11,455 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:11,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:09:11,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:09:11,456 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:11,456 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:09:11,457 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:09:11,457 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:09:11,457 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:09:11,458 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:09:11,458 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:09:11,458 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57d203c2bb9e5fb46a500992932f18e1bc69473edc196ab4ca3ccbbd153a7dab [2023-11-21 22:09:11,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:11,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:11,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:11,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:11,785 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:11,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2023-11-21 22:09:14,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:15,581 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:15,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2023-11-21 22:09:15,634 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/data/cdc463dd9/ccc26f25837048c0909e4e7426f489d9/FLAGffcc9a7a2 [2023-11-21 22:09:15,653 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/data/cdc463dd9/ccc26f25837048c0909e4e7426f489d9 [2023-11-21 22:09:15,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:15,658 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:15,659 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:15,660 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:15,668 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:15,669 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:15" (1/1) ... [2023-11-21 22:09:15,671 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fcfd077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:15, skipping insertion in model container [2023-11-21 22:09:15,671 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:15" (1/1) ... [2023-11-21 22:09:15,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:17,559 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[258961,258974] [2023-11-21 22:09:17,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:17,966 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:18,430 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i[258961,258974] [2023-11-21 22:09:18,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:18,617 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:09:18,627 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:18,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18 WrapperNode [2023-11-21 22:09:18,629 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:18,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:18,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:18,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:18,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:18,791 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,022 INFO L138 Inliner]: procedures = 217, calls = 1704, calls flagged for inlining = 76, calls inlined = 53, statements flattened = 3721 [2023-11-21 22:09:19,023 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:19,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:19,025 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:19,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:19,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,081 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,541 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:09:19,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:19,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:19,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:19,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:19,921 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (1/1) ... [2023-11-21 22:09:19,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:19,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:19,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:19,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0546f7b9-cf0a-45ca-b3b4-5b6bce533a11/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-21 22:09:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-21 22:09:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 22:09:20,018 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 22:09:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:09:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:09:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:09:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:09:20,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:09:20,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:09:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-21 22:09:20,021 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-21 22:09:20,021 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-21 22:09:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-21 22:09:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure p54_free_common [2023-11-21 22:09:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_free_common [2023-11-21 22:09:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_stop [2023-11-21 22:09:20,022 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_stop [2023-11-21 22:09:20,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:09:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:09:20,023 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-21 22:09:20,023 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-21 22:09:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:09:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:09:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:09:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:09:20,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:09:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:09:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-11-21 22:09:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-11-21 22:09:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:09:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:09:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:09:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:09:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:09:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure p54_find_type [2023-11-21 22:09:20,029 INFO L138 BoogieDeclarations]: Found implementation of procedure p54_find_type [2023-11-21 22:09:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-21 22:09:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-21 22:09:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:09:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:09:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_open [2023-11-21 22:09:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_open [2023-11-21 22:09:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:09:20,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:09:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:09:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:09:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-21 22:09:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-21 22:09:20,031 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_post_reset [2023-11-21 22:09:20,031 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_post_reset [2023-11-21 22:09:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 22:09:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 22:09:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:09:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 22:09:20,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 22:09:20,032 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_disconnect [2023-11-21 22:09:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_disconnect [2023-11-21 22:09:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:09:20,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-11-21 22:09:20,033 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-11-21 22:09:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:09:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-11-21 22:09:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-11-21 22:09:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:09:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:09:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 22:09:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 22:09:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:09:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:09:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-11-21 22:09:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-11-21 22:09:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:09:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_pre_reset [2023-11-21 22:09:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_pre_reset [2023-11-21 22:09:20,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:09:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:09:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 22:09:20,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 22:09:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:09:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:20,039 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_read [2023-11-21 22:09:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_read [2023-11-21 22:09:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_write [2023-11-21 22:09:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_write [2023-11-21 22:09:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 22:09:20,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 22:09:20,040 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:09:20,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:09:20,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:09:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev_of_p54u_priv [2023-11-21 22:09:20,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev_of_p54u_priv [2023-11-21 22:09:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_resume [2023-11-21 22:09:20,042 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_resume [2023-11-21 22:09:20,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:09:20,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:09:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 22:09:20,043 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 22:09:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-11-21 22:09:20,043 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-11-21 22:09:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_free_urbs [2023-11-21 22:09:20,043 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_free_urbs [2023-11-21 22:09:20,043 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-11-21 22:09:20,044 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-11-21 22:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-21 22:09:20,044 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-21 22:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure p54u_bulk_msg [2023-11-21 22:09:20,044 INFO L138 BoogieDeclarations]: Found implementation of procedure p54u_bulk_msg [2023-11-21 22:09:20,044 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-21 22:09:20,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-21 22:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:09:20,045 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-21 22:09:20,045 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-21 22:09:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-21 22:09:20,046 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-21 22:09:20,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:20,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:20,565 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:20,569 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:20,890 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:10:08,405 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:09,499 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:09,499 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:10:09,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:09 BoogieIcfgContainer [2023-11-21 22:10:09,501 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:09,504 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:10:09,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:10:09,507 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:10:09,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:09:15" (1/3) ... [2023-11-21 22:10:09,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7e81f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:09, skipping insertion in model container [2023-11-21 22:10:09,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:18" (2/3) ... [2023-11-21 22:10:09,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c7e81f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:09, skipping insertion in model container [2023-11-21 22:10:09,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:09" (3/3) ... [2023-11-21 22:10:09,510 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--wireless--p54--p54usb.ko-entry_point.cil.out.i [2023-11-21 22:10:09,529 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:10:09,530 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:10:09,601 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:10:09,607 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=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@24fa9bb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:10:09,607 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:10:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand has 617 states, 391 states have (on average 1.3734015345268542) internal successors, (537), 415 states have internal predecessors, (537), 175 states have call successors, (175), 50 states have call predecessors, (175), 49 states have return successors, (171), 171 states have call predecessors, (171), 171 states have call successors, (171) [2023-11-21 22:10:09,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-21 22:10:09,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:10:09,626 INFO L195 NwaCegarLoop]: 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] [2023-11-21 22:10:09,626 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:10:09,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1743810134, now seen corresponding path program 1 times [2023-11-21 22:10:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:09,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842993411] [2023-11-21 22:10:09,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms