./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.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 aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:50:16,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:50:16,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:50:16,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:50:16,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:50:16,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:50:16,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:50:16,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:50:16,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:50:16,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:50:16,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:50:16,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:50:16,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:50:16,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:50:16,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:50:16,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:50:16,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:50:16,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:50:16,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:50:16,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:50:16,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:50:16,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:50:16,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:50:16,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:50:16,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:50:16,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:50:16,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:50:16,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:50:16,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:50:16,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:50:16,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:50:16,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:50:16,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:50:16,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:50:16,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:50:16,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:50:16,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:50:16,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:50:16,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:50:16,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:50:16,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:50:16,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:50:16,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:50:16,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:50:16,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:50:16,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:50:16,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:50:16,627 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:50:16,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:50:16,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:50:16,628 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:50:16,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:50:16,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:50:16,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:50:16,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:50:16,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:50:16,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:50:16,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:50:16,630 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:50:16,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:50:16,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:50:16,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:50:16,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:50:16,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:50:16,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:50:16,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:50:16,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:50:16,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:50:16,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:50:16,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:50:16,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:50:16,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:50:16,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:50:16,634 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aaa391796caf9ffd02d820d63142c08953b50843acf6dbe45cefeca4ae26da3b [2021-12-14 17:50:16,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:50:16,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:50:16,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:50:16,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:50:16,897 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:50:16,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-12-14 17:50:16,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170158d59/8d6ff900fc8649b9b223ea067e212a56/FLAG180e79ffd [2021-12-14 17:50:17,706 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:50:17,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-12-14 17:50:17,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170158d59/8d6ff900fc8649b9b223ea067e212a56/FLAG180e79ffd [2021-12-14 17:50:17,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170158d59/8d6ff900fc8649b9b223ea067e212a56 [2021-12-14 17:50:17,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:50:17,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:50:17,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:50:17,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:50:17,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:50:17,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:17" (1/1) ... [2021-12-14 17:50:17,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0ec7ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:17, skipping insertion in model container [2021-12-14 17:50:17,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:50:17" (1/1) ... [2021-12-14 17:50:17,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:50:18,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:50:18,660 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-12-14 17:50:18,661 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-12-14 17:50:19,108 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-12-14 17:50:20,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:50:20,518 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:50:20,615 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5977] [2021-12-14 17:50:20,617 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5978-5979] [2021-12-14 17:50:20,656 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i[185445,185458] [2021-12-14 17:50:20,984 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:50:21,123 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:50:21,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21 WrapperNode [2021-12-14 17:50:21,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:50:21,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:50:21,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:50:21,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:50:21,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,429 INFO L137 Inliner]: procedures = 324, calls = 3021, calls flagged for inlining = 155, calls inlined = 152, statements flattened = 6280 [2021-12-14 17:50:21,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:50:21,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:50:21,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:50:21,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:50:21,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,711 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:50:21,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:50:21,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:50:21,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:50:21,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (1/1) ... [2021-12-14 17:50:21,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:50:21,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:50:21,816 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) [2021-12-14 17:50:21,841 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 [2021-12-14 17:50:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-14 17:50:21,861 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-14 17:50:21,861 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-12-14 17:50:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-12-14 17:50:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure hso_start_serial_device [2021-12-14 17:50:21,862 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_start_serial_device [2021-12-14 17:50:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:50:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:50:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:50:21,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:50:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:50:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2021-12-14 17:50:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2021-12-14 17:50:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure mux_device_request [2021-12-14 17:50:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure mux_device_request [2021-12-14 17:50:21,863 INFO L130 BoogieDeclarations]: Found specification of procedure hso_unthrottle [2021-12-14 17:50:21,863 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_unthrottle [2021-12-14 17:50:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_ep [2021-12-14 17:50:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_ep [2021-12-14 17:50:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-14 17:50:21,864 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-14 17:50:21,864 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:50:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:50:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:50:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:50:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:50:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:50:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure hso_kick_transmit [2021-12-14 17:50:21,865 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_kick_transmit [2021-12-14 17:50:21,865 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_activity [2021-12-14 17:50:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_activity [2021-12-14 17:50:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure fix_crc_bug [2021-12-14 17:50:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure fix_crc_bug [2021-12-14 17:50:21,866 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-12-14 17:50:21,866 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-12-14 17:50:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_set_termios [2021-12-14 17:50:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_set_termios [2021-12-14 17:50:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:50:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:50:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-14 17:50:21,867 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-14 17:50:21,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:50:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:50:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure dev2ser [2021-12-14 17:50:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure dev2ser [2021-12-14 17:50:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:50:21,868 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:50:21,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:50:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:50:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:50:21,869 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:50:21,869 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 17:50:21,870 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 17:50:21,870 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:50:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:50:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2021-12-14 17:50:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2021-12-14 17:50:21,871 INFO L130 BoogieDeclarations]: Found specification of procedure hso_create_net_device [2021-12-14 17:50:21,871 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_create_net_device [2021-12-14 17:50:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 17:50:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 17:50:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:50:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 17:50:21,872 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 17:50:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-14 17:50:21,872 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data [2021-12-14 17:50:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data [2021-12-14 17:50:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_tiocmget [2021-12-14 17:50:21,873 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_tiocmget [2021-12-14 17:50:21,873 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_net_device [2021-12-14 17:50:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_net_device [2021-12-14 17:50:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:50:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-14 17:50:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 17:50:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 17:50:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:50:21,874 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:50:21,874 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_serial_read [2021-12-14 17:50:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_serial_read [2021-12-14 17:50:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_common_free [2021-12-14 17:50:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_common_free [2021-12-14 17:50:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:50:21,875 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-14 17:50:21,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-14 17:50:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:50:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure hso_get_count [2021-12-14 17:50:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_get_count [2021-12-14 17:50:21,876 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget_submit_urb [2021-12-14 17:50:21,876 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget_submit_urb [2021-12-14 17:50:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-14 17:50:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-14 17:50:21,877 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:50:21,877 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:50:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-14 17:50:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-14 17:50:21,878 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:50:21,878 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:50:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_close [2021-12-14 17:50:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_close [2021-12-14 17:50:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:50:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:50:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 17:50:21,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 17:50:21,879 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-14 17:50:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-14 17:50:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 17:50:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 17:50:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 17:50:21,880 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 17:50:21,880 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 17:50:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 17:50:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure _hso_serial_set_termios [2021-12-14 17:50:21,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _hso_serial_set_termios [2021-12-14 17:50:21,881 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-14 17:50:21,882 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-14 17:50:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:50:21,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:50:21,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:50:21,885 INFO L130 BoogieDeclarations]: Found specification of procedure hso_resume [2021-12-14 17:50:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_resume [2021-12-14 17:50:21,886 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data_and_resubmit_bulk_urb [2021-12-14 17:50:21,886 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data_and_resubmit_bulk_urb [2021-12-14 17:50:21,887 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 17:50:21,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 17:50:21,892 INFO L130 BoogieDeclarations]: Found specification of procedure hso_put_activity [2021-12-14 17:50:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_put_activity [2021-12-14 17:50:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:50:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_destroy [2021-12-14 17:50:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_destroy [2021-12-14 17:50:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_submit_intr_urb [2021-12-14 17:50:21,893 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_submit_intr_urb [2021-12-14 17:50:21,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2021-12-14 17:50:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2021-12-14 17:50:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-14 17:50:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-14 17:50:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure hso_mux_to_port [2021-12-14 17:50:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_mux_to_port [2021-12-14 17:50:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:50:21,894 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_chars_in_buffer [2021-12-14 17:50:21,894 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_chars_in_buffer [2021-12-14 17:50:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure dev2net [2021-12-14 17:50:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev2net [2021-12-14 17:50:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2021-12-14 17:50:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2021-12-14 17:50:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:50:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:50:21,895 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 17:50:21,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 17:50:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_ioctl [2021-12-14 17:50:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_ioctl [2021-12-14 17:50:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:50:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:50:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 17:50:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 17:50:21,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:50:21,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:50:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure hso_create_device [2021-12-14 17:50:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_create_device [2021-12-14 17:50:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-12-14 17:50:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-12-14 17:50:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:50:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:50:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_write_room [2021-12-14 17:50:21,897 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_write_room [2021-12-14 17:50:21,897 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-12-14 17:50:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-12-14 17:50:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:50:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_tx_timeout [2021-12-14 17:50:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_tx_timeout [2021-12-14 17:50:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure hso_urb_to_index [2021-12-14 17:50:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_urb_to_index [2021-12-14 17:50:21,898 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-12-14 17:50:21,898 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-12-14 17:50:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-12-14 17:50:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-12-14 17:50:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:50:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:50:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_by_index [2021-12-14 17:50:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_by_index [2021-12-14 17:50:21,899 INFO L130 BoogieDeclarations]: Found specification of procedure hso_stop_net_device [2021-12-14 17:50:21,899 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_stop_net_device [2021-12-14 17:50:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:50:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_interface [2021-12-14 17:50:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_interface [2021-12-14 17:50:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:50:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure handle_usb_error [2021-12-14 17:50:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_usb_error [2021-12-14 17:50:21,900 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_start_xmit [2021-12-14 17:50:21,900 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_start_xmit [2021-12-14 17:50:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:50:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:50:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure hso_disconnect [2021-12-14 17:50:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_disconnect [2021-12-14 17:50:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_tiocmset [2021-12-14 17:50:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_tiocmset [2021-12-14 17:50:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure hso_serial_common_create [2021-12-14 17:50:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_serial_common_create [2021-12-14 17:50:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:50:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 17:50:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-12-14 17:50:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-12-14 17:50:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:50:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:50:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure hso_log_port [2021-12-14 17:50:21,902 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_log_port [2021-12-14 17:50:21,902 INFO L130 BoogieDeclarations]: Found specification of procedure hso_unthrottle_tasklet [2021-12-14 17:50:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_unthrottle_tasklet [2021-12-14 17:50:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-14 17:50:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-14 17:50:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:50:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:50:21,903 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-14 17:50:21,903 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-14 17:50:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 17:50:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 17:50:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure hso_free_tiomget [2021-12-14 17:50:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_free_tiomget [2021-12-14 17:50:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 17:50:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 17:50:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 17:50:21,904 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 17:50:21,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 17:50:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 17:50:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 17:50:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 17:50:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure hso_net_open [2021-12-14 17:50:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_net_open [2021-12-14 17:50:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2021-12-14 17:50:21,905 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2021-12-14 17:50:21,905 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:50:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:50:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure hso_start_net_device [2021-12-14 17:50:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_start_net_device [2021-12-14 17:50:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:50:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure hso_stop_serial_device [2021-12-14 17:50:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure hso_stop_serial_device [2021-12-14 17:50:21,906 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-14 17:50:21,906 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-14 17:50:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:50:21,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:50:21,907 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 17:50:21,908 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 17:50:21,910 INFO L130 BoogieDeclarations]: Found specification of procedure put_rxbuf_data_and_resubmit_ctrl_urb [2021-12-14 17:50:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure put_rxbuf_data_and_resubmit_ctrl_urb [2021-12-14 17:50:21,911 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:50:21,911 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:50:22,782 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:50:22,787 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:50:23,024 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:50:33,445 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:50:33,470 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:50:33,470 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:50:33,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:33 BoogieIcfgContainer [2021-12-14 17:50:33,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:50:33,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:50:33,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:50:33,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:50:33,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:50:17" (1/3) ... [2021-12-14 17:50:33,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcc1de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:33, skipping insertion in model container [2021-12-14 17:50:33,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:50:21" (2/3) ... [2021-12-14 17:50:33,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcc1de2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:50:33, skipping insertion in model container [2021-12-14 17:50:33,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:50:33" (3/3) ... [2021-12-14 17:50:33,482 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--net--usb--hso.ko-entry_point.cil.out.i [2021-12-14 17:50:33,487 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:50:33,488 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:50:33,539 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:50:33,545 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 [2021-12-14 17:50:33,545 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:50:33,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1489 states have (on average 1.3781061114842177) internal successors, (2052), 1528 states have internal predecessors, (2052), 479 states have call successors, (479), 113 states have call predecessors, (479), 112 states have return successors, (471), 466 states have call predecessors, (471), 471 states have call successors, (471) [2021-12-14 17:50:33,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-14 17:50:33,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:50:33,637 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:50:33,638 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:50:33,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:50:33,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1741087448, now seen corresponding path program 1 times [2021-12-14 17:50:33,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:50:33,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415417364] [2021-12-14 17:50:33,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:50:33,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:50:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:50:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:50:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:50:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:50:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:50:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:50:34,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:50:34,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:50:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:50:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:50:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:50:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:50:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 17:50:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-12-14 17:50:34,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:50:34,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415417364] [2021-12-14 17:50:34,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415417364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:50:34,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:50:34,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:50:34,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766313841] [2021-12-14 17:50:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:50:34,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:50:34,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:50:34,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:50:34,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:50:34,554 INFO L87 Difference]: Start difference. First operand has 2082 states, 1489 states have (on average 1.3781061114842177) internal successors, (2052), 1528 states have internal predecessors, (2052), 479 states have call successors, (479), 113 states have call predecessors, (479), 112 states have return successors, (471), 466 states have call predecessors, (471), 471 states have call successors, (471) Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 17:50:37,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:40,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:42,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:50:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:50:53,483 INFO L93 Difference]: Finished difference Result 6487 states and 9635 transitions. [2021-12-14 17:50:53,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:50:53,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 94 [2021-12-14 17:50:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:50:53,530 INFO L225 Difference]: With dead ends: 6487 [2021-12-14 17:50:53,530 INFO L226 Difference]: Without dead ends: 4364 [2021-12-14 17:50:53,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:50:53,553 INFO L933 BasicCegarLoop]: 3121 mSDtfsCounter, 5223 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 3711 mSolverCounterSat, 2671 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5491 SdHoareTripleChecker+Valid, 7732 SdHoareTripleChecker+Invalid, 6385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2671 IncrementalHoareTripleChecker+Valid, 3711 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:50:53,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5491 Valid, 7732 Invalid, 6385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2671 Valid, 3711 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2021-12-14 17:50:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4364 states. [2021-12-14 17:50:53,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4364 to 3668. [2021-12-14 17:50:53,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3668 states, 2637 states have (on average 1.3704967766401213) internal successors, (3614), 2690 states have internal predecessors, (3614), 816 states have call successors, (816), 213 states have call predecessors, (816), 214 states have return successors, (821), 806 states have call predecessors, (821), 815 states have call successors, (821) [2021-12-14 17:50:53,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3668 states to 3668 states and 5251 transitions. [2021-12-14 17:50:53,943 INFO L78 Accepts]: Start accepts. Automaton has 3668 states and 5251 transitions. Word has length 94 [2021-12-14 17:50:53,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:50:53,945 INFO L470 AbstractCegarLoop]: Abstraction has 3668 states and 5251 transitions. [2021-12-14 17:50:53,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-14 17:50:53,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 5251 transitions. [2021-12-14 17:50:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-12-14 17:50:53,958 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:50:53,959 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:50:53,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:50:53,960 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:50:53,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:50:53,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1245622107, now seen corresponding path program 1 times [2021-12-14 17:50:53,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:50:53,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121055609] [2021-12-14 17:50:53,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:50:53,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:50:54,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:50:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:50:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:50:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:50:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:50:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:50:54,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:50:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:50:54,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:50:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:50:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:50:54,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:50:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 17:50:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 17:50:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 17:50:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:50:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 17:50:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 17:50:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-12-14 17:50:54,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 17:50:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:50:54,496 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2021-12-14 17:50:54,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:50:54,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121055609] [2021-12-14 17:50:54,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121055609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:50:54,497 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:50:54,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:50:54,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602683796] [2021-12-14 17:50:54,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:50:54,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:50:54,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:50:54,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:50:54,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:50:54,500 INFO L87 Difference]: Start difference. First operand 3668 states and 5251 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 17:50:57,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:51:00,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:51:02,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []