./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.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 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:10:33,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:10:33,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:10:33,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:10:33,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:10:33,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:10:33,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:10:33,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:10:33,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:10:33,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:10:33,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:10:33,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:10:33,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:10:33,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:10:33,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:10:33,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:10:33,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:10:33,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:10:33,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:10:33,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:10:33,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:10:33,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:10:33,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:10:33,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:10:33,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:10:33,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:10:33,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:10:33,815 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:10:33,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:10:33,816 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:10:33,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:10:33,817 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:10:33,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:10:33,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:10:33,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:10:33,819 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:10:33,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:10:33,819 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:10:33,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:10:33,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:10:33,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:10:33,821 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:10:33,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:10:33,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:10:33,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:10:33,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:10:33,851 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:10:33,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:10:33,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:10:33,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:10:33,852 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:10:33,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:10:33,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:10:33,853 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:10:33,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:10:33,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:10:33,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:10:33,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:10:33,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:10:33,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:10:33,854 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:10:33,855 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:10:33,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2021-12-21 16:10:34,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:10:34,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:10:34,086 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:10:34,087 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:10:34,087 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:10:34,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:10:34,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf16ada55/fb8768a3d9a645eb888654e3d477659c/FLAG3db9bd104 [2021-12-21 16:10:34,711 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:10:34,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:10:34,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf16ada55/fb8768a3d9a645eb888654e3d477659c/FLAG3db9bd104 [2021-12-21 16:10:35,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf16ada55/fb8768a3d9a645eb888654e3d477659c [2021-12-21 16:10:35,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:10:35,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:10:35,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:10:35,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:10:35,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:10:35,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:10:35" (1/1) ... [2021-12-21 16:10:35,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffead34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:35, skipping insertion in model container [2021-12-21 16:10:35,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:10:35" (1/1) ... [2021-12-21 16:10:35,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:10:35,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:10:35,837 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-21 16:10:36,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:10:36,464 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:10:36,532 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-21 16:10:36,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:10:36,877 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:10:36,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36 WrapperNode [2021-12-21 16:10:36,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:10:36,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:10:36,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:10:36,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:10:36,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:36,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,082 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2021-12-21 16:10:37,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:10:37,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:10:37,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:10:37,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:10:37,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:10:37,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:10:37,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:10:37,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:10:37,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (1/1) ... [2021-12-21 16:10:37,299 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:10:37,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:10:37,336 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) [2021-12-21 16:10:37,367 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 [2021-12-21 16:10:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-21 16:10:37,396 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-21 16:10:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-21 16:10:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-21 16:10:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-21 16:10:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-21 16:10:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-21 16:10:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-21 16:10:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 16:10:37,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-21 16:10:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2021-12-21 16:10:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2021-12-21 16:10:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-21 16:10:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-21 16:10:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:10:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:10:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-21 16:10:37,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-21 16:10:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-21 16:10:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-21 16:10:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-21 16:10:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-21 16:10:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-21 16:10:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-21 16:10:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-21 16:10:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-21 16:10:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-21 16:10:37,399 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-21 16:10:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:10:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:10:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-21 16:10:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-21 16:10:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-21 16:10:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-21 16:10:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:10:37,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:10:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-21 16:10:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-21 16:10:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-21 16:10:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-21 16:10:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-21 16:10:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-21 16:10:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-21 16:10:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-21 16:10:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-21 16:10:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-21 16:10:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-21 16:10:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-21 16:10:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:10:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:10:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:10:37,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:10:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-21 16:10:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-21 16:10:37,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-21 16:10:37,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-21 16:10:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-21 16:10:37,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-21 16:10:37,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-21 16:10:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-21 16:10:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-21 16:10:37,405 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-21 16:10:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-21 16:10:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-21 16:10:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:10:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:10:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-21 16:10:37,406 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-21 16:10:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-21 16:10:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-21 16:10:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-21 16:10:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-21 16:10:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-21 16:10:37,407 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-21 16:10:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-21 16:10:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-21 16:10:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2021-12-21 16:10:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2021-12-21 16:10:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-21 16:10:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-21 16:10:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:10:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-21 16:10:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:10:37,408 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:10:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:10:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:10:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:10:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-21 16:10:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-21 16:10:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-21 16:10:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-21 16:10:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-21 16:10:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-21 16:10:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-21 16:10:37,410 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-21 16:10:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-21 16:10:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-21 16:10:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:10:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:10:37,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:10:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-21 16:10:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-21 16:10:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-21 16:10:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-21 16:10:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-21 16:10:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-21 16:10:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-21 16:10:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-21 16:10:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-21 16:10:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2021-12-21 16:10:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2021-12-21 16:10:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-21 16:10:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-21 16:10:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:10:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:10:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-21 16:10:37,413 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-21 16:10:37,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:10:37,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-21 16:10:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-21 16:10:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-21 16:10:37,416 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:10:37,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:10:37,417 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-21 16:10:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-21 16:10:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-21 16:10:37,418 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-21 16:10:37,418 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:10:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:10:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-21 16:10:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-21 16:10:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:10:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-21 16:10:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-21 16:10:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2021-12-21 16:10:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:10:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-21 16:10:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-21 16:10:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2021-12-21 16:10:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2021-12-21 16:10:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 16:10:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 16:10:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-21 16:10:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-21 16:10:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:10:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:10:37,423 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-21 16:10:37,423 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-21 16:10:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-21 16:10:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-21 16:10:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-21 16:10:37,424 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:10:37,424 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-21 16:10:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-21 16:10:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-21 16:10:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-21 16:10:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-21 16:10:37,425 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-21 16:10:37,425 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-21 16:10:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-21 16:10:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-21 16:10:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-21 16:10:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-21 16:10:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-21 16:10:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-21 16:10:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-21 16:10:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-21 16:10:37,426 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:10:37,426 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:10:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2021-12-21 16:10:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2021-12-21 16:10:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2021-12-21 16:10:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2021-12-21 16:10:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-21 16:10:37,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-21 16:10:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:10:37,427 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-21 16:10:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-21 16:10:37,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-21 16:10:37,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2021-12-21 16:10:37,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2021-12-21 16:10:37,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-21 16:10:37,474 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-21 16:10:37,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-21 16:10:37,475 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:10:37,475 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:10:38,096 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:10:38,099 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:10:38,325 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:10:38,763 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2021-12-21 16:10:43,693 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:10:43,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:10:43,716 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 16:10:43,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:10:43 BoogieIcfgContainer [2021-12-21 16:10:43,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:10:43,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:10:43,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:10:43,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:10:43,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:10:35" (1/3) ... [2021-12-21 16:10:43,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fe0ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:10:43, skipping insertion in model container [2021-12-21 16:10:43,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:10:36" (2/3) ... [2021-12-21 16:10:43,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66fe0ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:10:43, skipping insertion in model container [2021-12-21 16:10:43,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:10:43" (3/3) ... [2021-12-21 16:10:43,724 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-21 16:10:43,728 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:10:43,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:10:43,764 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:10:43,768 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 [2021-12-21 16:10:43,769 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:10:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2021-12-21 16:10:43,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-21 16:10:43,811 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:10:43,812 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:10:43,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:10:43,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:10:43,816 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2021-12-21 16:10:43,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:10:43,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616539169] [2021-12-21 16:10:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:10:43,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:10:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:10:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:10:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:10:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:10:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:10:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:10:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:10:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:10:44,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:44,432 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-21 16:10:44,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:10:44,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616539169] [2021-12-21 16:10:44,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616539169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:10:44,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:10:44,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:10:44,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006938887] [2021-12-21 16:10:44,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:10:44,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:10:44,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:10:44,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:10:44,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:10:44,468 INFO L87 Difference]: Start difference. First operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-21 16:10:47,827 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 [] [2021-12-21 16:10:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:10:52,041 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2021-12-21 16:10:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:10:52,044 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-12-21 16:10:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:10:52,099 INFO L225 Difference]: With dead ends: 6691 [2021-12-21 16:10:52,100 INFO L226 Difference]: Without dead ends: 4554 [2021-12-21 16:10:52,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:10:52,120 INFO L933 BasicCegarLoop]: 3160 mSDtfsCounter, 4027 mSDsluCounter, 3903 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4348 SdHoareTripleChecker+Valid, 7063 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2021-12-21 16:10:52,121 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4348 Valid, 7063 Invalid, 3185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 1772 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2021-12-21 16:10:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2021-12-21 16:10:52,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2021-12-21 16:10:52,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2945 states have (on average 1.33276740237691) internal successors, (3925), 2988 states have internal predecessors, (3925), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2021-12-21 16:10:52,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2021-12-21 16:10:52,465 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2021-12-21 16:10:52,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:10:52,466 INFO L470 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2021-12-21 16:10:52,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-21 16:10:52,466 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2021-12-21 16:10:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-21 16:10:52,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:10:52,478 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:10:52,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:10:52,479 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:10:52,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:10:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2021-12-21 16:10:52,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:10:52,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708265324] [2021-12-21 16:10:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:10:52,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:10:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:10:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:10:52,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:10:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:10:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:10:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:10:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:10:52,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:10:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-21 16:10:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-21 16:10:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:10:52,918 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-21 16:10:52,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:10:52,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708265324] [2021-12-21 16:10:52,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708265324] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:10:52,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:10:52,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:10:52,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210313264] [2021-12-21 16:10:52,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:10:52,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:10:52,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:10:52,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:10:52,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:10:52,924 INFO L87 Difference]: Start difference. First operand 4048 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-21 16:10:56,521 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 [] [2021-12-21 16:11:00,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:00,902 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2021-12-21 16:11:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:11:00,903 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2021-12-21 16:11:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:00,948 INFO L225 Difference]: With dead ends: 12746 [2021-12-21 16:11:00,948 INFO L226 Difference]: Without dead ends: 8719 [2021-12-21 16:11:00,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:11:00,970 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3824 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 6889 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:00,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4155 Valid, 6889 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 1857 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2021-12-21 16:11:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-12-21 16:11:01,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2021-12-21 16:11:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 5584 states have (on average 1.3273638968481376) internal successors, (7412), 5665 states have internal predecessors, (7412), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2021-12-21 16:11:01,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2021-12-21 16:11:01,266 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2021-12-21 16:11:01,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:11:01,267 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2021-12-21 16:11:01,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-21 16:11:01,268 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2021-12-21 16:11:01,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-21 16:11:01,271 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:01,272 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:11:01,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:11:01,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:01,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:01,272 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2021-12-21 16:11:01,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:01,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760554245] [2021-12-21 16:11:01,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:01,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:01,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:11:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:11:01,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-21 16:11:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-21 16:11:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-21 16:11:01,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:01,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760554245] [2021-12-21 16:11:01,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760554245] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:01,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:01,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:11:01,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595972275] [2021-12-21 16:11:01,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:01,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:11:01,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:01,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:11:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:11:01,556 INFO L87 Difference]: Start difference. First operand 7670 states and 10659 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:11:04,943 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 [] [2021-12-21 16:11:12,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:12,880 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2021-12-21 16:11:12,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 16:11:12,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2021-12-21 16:11:12,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:12,983 INFO L225 Difference]: With dead ends: 29996 [2021-12-21 16:11:12,983 INFO L226 Difference]: Without dead ends: 22347 [2021-12-21 16:11:13,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:11:13,019 INFO L933 BasicCegarLoop]: 3170 mSDtfsCounter, 7740 mSDsluCounter, 4871 mSDsCounter, 0 mSdLazyCounter, 4054 mSolverCounterSat, 4137 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8194 SdHoareTripleChecker+Valid, 8041 SdHoareTripleChecker+Invalid, 8192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4137 IncrementalHoareTripleChecker+Valid, 4054 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:13,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8194 Valid, 8041 Invalid, 8192 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4137 Valid, 4054 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2021-12-21 16:11:13,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2021-12-21 16:11:13,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2021-12-21 16:11:13,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15170 states, 11050 states have (on average 1.3270588235294118) internal successors, (14664), 11207 states have internal predecessors, (14664), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2021-12-21 16:11:13,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2021-12-21 16:11:13,819 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2021-12-21 16:11:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:11:13,820 INFO L470 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2021-12-21 16:11:13,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:11:13,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2021-12-21 16:11:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-21 16:11:13,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:13,824 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:11:13,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 16:11:13,825 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:13,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:13,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2021-12-21 16:11:13,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:13,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404068403] [2021-12-21 16:11:13,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:13,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:13,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:13,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:13,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:11:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:11:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:13,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 16:11:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-21 16:11:14,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:14,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404068403] [2021-12-21 16:11:14,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404068403] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:14,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:14,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:11:14,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497543981] [2021-12-21 16:11:14,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:14,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:11:14,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:14,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:11:14,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:11:14,016 INFO L87 Difference]: Start difference. First operand 15170 states and 21071 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-21 16:11:16,552 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 [] [2021-12-21 16:11:24,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:24,694 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2021-12-21 16:11:24,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-21 16:11:24,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-21 16:11:24,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:25,089 INFO L225 Difference]: With dead ends: 58956 [2021-12-21 16:11:25,089 INFO L226 Difference]: Without dead ends: 43807 [2021-12-21 16:11:25,179 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:11:25,180 INFO L933 BasicCegarLoop]: 3083 mSDtfsCounter, 7613 mSDsluCounter, 4930 mSDsCounter, 0 mSdLazyCounter, 4092 mSolverCounterSat, 4129 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8048 SdHoareTripleChecker+Valid, 8013 SdHoareTripleChecker+Invalid, 8222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4129 IncrementalHoareTripleChecker+Valid, 4092 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:25,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8048 Valid, 8013 Invalid, 8222 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4129 Valid, 4092 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2021-12-21 16:11:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2021-12-21 16:11:26,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2021-12-21 16:11:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38538 states, 28142 states have (on average 1.3164664913652193) internal successors, (37048), 28354 states have internal predecessors, (37048), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2021-12-21 16:11:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2021-12-21 16:11:26,522 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2021-12-21 16:11:26,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:11:26,523 INFO L470 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2021-12-21 16:11:26,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-21 16:11:26,524 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2021-12-21 16:11:26,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-21 16:11:26,530 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:26,530 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:11:26,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 16:11:26,531 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:26,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:26,531 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2021-12-21 16:11:26,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:26,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329542042] [2021-12-21 16:11:26,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:26,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:26,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:26,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 16:11:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 16:11:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:11:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:11:26,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:26,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:26,832 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-21 16:11:26,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:26,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329542042] [2021-12-21 16:11:26,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329542042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:26,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:26,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 16:11:26,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919403657] [2021-12-21 16:11:26,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:26,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 16:11:26,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:26,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 16:11:26,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:11:26,835 INFO L87 Difference]: Start difference. First operand 38538 states and 55391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-21 16:11:34,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:34,077 INFO L93 Difference]: Finished difference Result 129915 states and 206472 transitions. [2021-12-21 16:11:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:11:34,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2021-12-21 16:11:34,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:34,808 INFO L225 Difference]: With dead ends: 129915 [2021-12-21 16:11:34,809 INFO L226 Difference]: Without dead ends: 91398 [2021-12-21 16:11:34,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:11:34,979 INFO L933 BasicCegarLoop]: 3296 mSDtfsCounter, 5912 mSDsluCounter, 4247 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 2842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6223 SdHoareTripleChecker+Valid, 7543 SdHoareTripleChecker+Invalid, 4744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2842 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:34,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6223 Valid, 7543 Invalid, 4744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2842 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-21 16:11:35,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91398 states.