./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 ae007674 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-ae00767 [2021-12-28 03:55:08,202 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:55:08,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:55:08,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:55:08,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:55:08,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:55:08,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:55:08,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:55:08,256 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:55:08,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:55:08,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:55:08,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:55:08,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:55:08,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:55:08,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:55:08,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:55:08,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:55:08,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:55:08,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:55:08,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:55:08,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:55:08,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:55:08,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:55:08,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:55:08,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:55:08,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:55:08,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:55:08,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:55:08,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:55:08,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:55:08,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:55:08,295 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:55:08,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:55:08,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:55:08,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:55:08,299 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:55:08,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:55:08,300 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:55:08,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:55:08,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:55:08,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:55:08,303 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:55:08,339 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:55:08,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:55:08,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:55:08,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:55:08,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:55:08,342 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:55:08,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:55:08,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:55:08,343 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:55:08,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:55:08,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:55:08,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:55:08,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:55:08,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:55:08,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:55:08,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:55:08,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:55:08,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:55:08,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:55:08,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:55:08,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:55:08,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:55:08,358 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:55:08,358 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:55:08,358 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:55:08,358 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2021-12-28 03:55:08,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:55:08,695 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:55:08,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:55:08,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:55:08,701 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:55:08,702 INFO L432 ainManager$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 [2021-12-28 03:55:08,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cef354148/5ee6cf11025c49f18cb6a846448f95e1/FLAG9467d4815 [2021-12-28 03:55:09,648 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:55:09,649 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 [2021-12-28 03:55:09,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cef354148/5ee6cf11025c49f18cb6a846448f95e1/FLAG9467d4815 [2021-12-28 03:55:09,731 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cef354148/5ee6cf11025c49f18cb6a846448f95e1 [2021-12-28 03:55:09,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:55:09,737 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:55:09,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:55:09,739 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:55:09,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:55:09,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:55:09" (1/1) ... [2021-12-28 03:55:09,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4aa060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:09, skipping insertion in model container [2021-12-28 03:55:09,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:55:09" (1/1) ... [2021-12-28 03:55:09,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:55:09,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:55:10,942 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] [2021-12-28 03:55:11,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:55:12,046 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:55:12,157 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] [2021-12-28 03:55:12,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:55:12,692 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:55:12,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12 WrapperNode [2021-12-28 03:55:12,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:55:12,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:55:12,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:55:12,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:55:12,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:12,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,051 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2021-12-28 03:55:13,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:55:13,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:55:13,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:55:13,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:55:13,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:55:13,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:55:13,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:55:13,352 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:55:13,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (1/1) ... [2021-12-28 03:55:13,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:55:13,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:55:13,379 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) [2021-12-28 03:55:13,390 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 [2021-12-28 03:55:13,417 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-28 03:55:13,417 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-28 03:55:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-28 03:55:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-28 03:55:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-28 03:55:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-28 03:55:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-28 03:55:13,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-28 03:55:13,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:55:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-28 03:55:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2021-12-28 03:55:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2021-12-28 03:55:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-28 03:55:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-28 03:55:13,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:55:13,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:55:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-28 03:55:13,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-28 03:55:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-28 03:55:13,420 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-28 03:55:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-28 03:55:13,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-28 03:55:13,420 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-28 03:55:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-28 03:55:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-28 03:55:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-28 03:55:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-28 03:55:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-28 03:55:13,421 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:55:13,421 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:55:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-28 03:55:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-28 03:55:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-28 03:55:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-28 03:55:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:55:13,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:55:13,422 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-28 03:55:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-28 03:55:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-28 03:55:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-28 03:55:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-28 03:55:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-28 03:55:13,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-28 03:55:13,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-28 03:55:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-28 03:55:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-28 03:55:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-28 03:55:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-28 03:55:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:55:13,424 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:55:13,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:55:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:55:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-28 03:55:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-28 03:55:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-28 03:55:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-28 03:55:13,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-28 03:55:13,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-28 03:55:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-28 03:55:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-28 03:55:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-28 03:55:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-28 03:55:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 03:55:13,426 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 03:55:13,426 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:55:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:55:13,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-28 03:55:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-28 03:55:13,427 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-28 03:55:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-28 03:55:13,427 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-28 03:55:13,427 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-28 03:55:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-28 03:55:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-28 03:55:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-28 03:55:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-28 03:55:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2021-12-28 03:55:13,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2021-12-28 03:55:13,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-28 03:55:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-28 03:55:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:55:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-28 03:55:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:55:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:55:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:55:13,429 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 03:55:13,429 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 03:55:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-28 03:55:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-28 03:55:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-28 03:55:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-28 03:55:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-28 03:55:13,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-28 03:55:13,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-28 03:55:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-28 03:55:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-28 03:55:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-28 03:55:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:55:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:55:13,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:55:13,431 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-28 03:55:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-28 03:55:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-28 03:55:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-28 03:55:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-28 03:55:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-28 03:55:13,432 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-28 03:55:13,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:55:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:55:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2021-12-28 03:55:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2021-12-28 03:55:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-28 03:55:13,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-28 03:55:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:55:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:55:13,433 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-28 03:55:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-28 03:55:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:55:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-28 03:55:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 03:55:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 03:55:13,434 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:55:13,434 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:55:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-28 03:55:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-28 03:55:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-28 03:55:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-28 03:55:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:55:13,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:55:13,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:55:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:55:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 03:55:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 03:55:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-28 03:55:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-28 03:55:13,436 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-28 03:55:13,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-28 03:55:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2021-12-28 03:55:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2021-12-28 03:55:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 03:55:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 03:55:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-28 03:55:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-28 03:55:13,437 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2021-12-28 03:55:13,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2021-12-28 03:55:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:55:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:55:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-28 03:55:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-28 03:55:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 03:55:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 03:55:13,438 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-28 03:55:13,438 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-28 03:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-28 03:55:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-28 03:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-28 03:55:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-28 03:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-28 03:55:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-28 03:55:13,439 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-28 03:55:13,439 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-28 03:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-28 03:55:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-28 03:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-28 03:55:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-28 03:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-28 03:55:13,440 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-28 03:55:13,440 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 03:55:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 03:55:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-28 03:55:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-28 03:55:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-28 03:55:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-28 03:55:13,441 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 03:55:13,441 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 03:55:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 03:55:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 03:55:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-28 03:55:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-28 03:55:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-28 03:55:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-28 03:55:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:55:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:55:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2021-12-28 03:55:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2021-12-28 03:55:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2021-12-28 03:55:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2021-12-28 03:55:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 03:55:13,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-28 03:55:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:55:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-28 03:55:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-28 03:55:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-28 03:55:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-28 03:55:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-28 03:55:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-28 03:55:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:55:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:55:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-28 03:55:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-28 03:55:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-28 03:55:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-28 03:55:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-28 03:55:13,445 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-28 03:55:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:55:13,445 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-28 03:55:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-28 03:55:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:55:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 03:55:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 03:55:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:55:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:55:13,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2021-12-28 03:55:13,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2021-12-28 03:55:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2021-12-28 03:55:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2021-12-28 03:55:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:55:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:55:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:55:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 03:55:13,447 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-28 03:55:13,447 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-28 03:55:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 03:55:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 03:55:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-28 03:55:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-28 03:55:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2021-12-28 03:55:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2021-12-28 03:55:13,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-28 03:55:13,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-28 03:55:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-28 03:55:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-28 03:55:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-28 03:55:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-28 03:55:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-28 03:55:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-28 03:55:13,449 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 03:55:13,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 03:55:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-28 03:55:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-28 03:55:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:55:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-28 03:55:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-28 03:55:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-28 03:55:13,450 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 03:55:13,450 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 03:55:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-28 03:55:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-28 03:55:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:55:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:55:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:55:13,451 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-28 03:55:13,451 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-28 03:55:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-28 03:55:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-28 03:55:13,452 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 03:55:13,452 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 03:55:14,360 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:55:14,366 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:55:14,770 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:55:15,338 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2021-12-28 03:55:21,753 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:55:21,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:55:21,780 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 03:55:21,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:55:21 BoogieIcfgContainer [2021-12-28 03:55:21,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:55:21,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:55:21,787 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:55:21,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:55:21,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:55:09" (1/3) ... [2021-12-28 03:55:21,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bea078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:55:21, skipping insertion in model container [2021-12-28 03:55:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:55:12" (2/3) ... [2021-12-28 03:55:21,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44bea078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:55:21, skipping insertion in model container [2021-12-28 03:55:21,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:55:21" (3/3) ... [2021-12-28 03:55:21,793 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-28 03:55:21,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:55:21,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:55:21,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:55:21,875 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 [2021-12-28 03:55:21,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:55:21,929 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) [2021-12-28 03:55:21,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-28 03:55:21,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:55:21,948 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] [2021-12-28 03:55:21,949 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:55:21,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:55:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2021-12-28 03:55:21,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:55:21,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477912880] [2021-12-28 03:55:21,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:55:21,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:55:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:55:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:55:22,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:55:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:55:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:55:22,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:55:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:55:22,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:55:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:22,728 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-28 03:55:22,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:55:22,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477912880] [2021-12-28 03:55:22,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477912880] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:55:22,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:55:22,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:55:22,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044863453] [2021-12-28 03:55:22,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:55:22,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:55:22,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:55:22,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:55:22,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:55:22,767 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) [2021-12-28 03:55:26,581 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 [] [2021-12-28 03:55:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:55:32,536 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2021-12-28 03:55:32,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:55:32,541 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 [2021-12-28 03:55:32,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:55:32,608 INFO L225 Difference]: With dead ends: 6691 [2021-12-28 03:55:32,608 INFO L226 Difference]: Without dead ends: 4554 [2021-12-28 03:55:32,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:55:32,637 INFO L933 BasicCegarLoop]: 3159 mSDtfsCounter, 4027 mSDsluCounter, 3665 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 6824 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:55:32,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4351 Valid, 6824 Invalid, 3424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 2011 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2021-12-28 03:55:32,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2021-12-28 03:55:32,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2021-12-28 03:55:32,926 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) [2021-12-28 03:55:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2021-12-28 03:55:32,980 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2021-12-28 03:55:32,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:55:32,983 INFO L470 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2021-12-28 03:55:32,983 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) [2021-12-28 03:55:32,984 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2021-12-28 03:55:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-28 03:55:33,002 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:55:33,003 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] [2021-12-28 03:55:33,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:55:33,004 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:55:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:55:33,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2021-12-28 03:55:33,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:55:33,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171131334] [2021-12-28 03:55:33,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:55:33,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:55:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:55:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:55:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:55:33,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:55:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:55:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:55:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:55:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:55:33,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-28 03:55:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-28 03:55:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-28 03:55:33,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:55:33,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171131334] [2021-12-28 03:55:33,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171131334] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:55:33,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:55:33,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:55:33,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663370889] [2021-12-28 03:55:33,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:55:33,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:55:33,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:55:33,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:55:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:55:33,444 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) [2021-12-28 03:55:37,150 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 [] [2021-12-28 03:55:43,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:55:43,993 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2021-12-28 03:55:43,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:55:43,993 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 [2021-12-28 03:55:43,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:55:44,061 INFO L225 Difference]: With dead ends: 12746 [2021-12-28 03:55:44,062 INFO L226 Difference]: Without dead ends: 8719 [2021-12-28 03:55:44,090 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 [2021-12-28 03:55:44,092 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3824 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4154 SdHoareTripleChecker+Valid, 6642 SdHoareTripleChecker+Invalid, 3462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:55:44,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4154 Valid, 6642 Invalid, 3462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1358 Valid, 2103 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-12-28 03:55:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-12-28 03:55:44,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2021-12-28 03:55:44,467 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) [2021-12-28 03:55:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2021-12-28 03:55:44,503 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2021-12-28 03:55:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:55:44,506 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2021-12-28 03:55:44,506 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) [2021-12-28 03:55:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2021-12-28 03:55:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-28 03:55:44,511 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:55:44,512 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] [2021-12-28 03:55:44,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:55:44,512 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:55:44,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:55:44,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2021-12-28 03:55:44,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:55:44,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992681457] [2021-12-28 03:55:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:55:44,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:55:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:55:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:55:44,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:55:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:55:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:55:44,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:55:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:55:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:55:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-28 03:55:44,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-28 03:55:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:55:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:44,889 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-28 03:55:44,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:55:44,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992681457] [2021-12-28 03:55:44,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992681457] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:55:44,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:55:44,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:55:44,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274265284] [2021-12-28 03:55:44,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:55:44,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:55:44,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:55:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:55:44,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:55:44,896 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) [2021-12-28 03:55:48,466 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 [] [2021-12-28 03:55:57,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:55:57,635 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2021-12-28 03:55:57,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 03:55:57,635 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 [2021-12-28 03:55:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:55:57,778 INFO L225 Difference]: With dead ends: 29996 [2021-12-28 03:55:57,779 INFO L226 Difference]: Without dead ends: 22347 [2021-12-28 03:55:57,821 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 [2021-12-28 03:55:57,826 INFO L933 BasicCegarLoop]: 3173 mSDtfsCounter, 7753 mSDsluCounter, 4578 mSDsCounter, 0 mSdLazyCounter, 4355 mSolverCounterSat, 4152 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8205 SdHoareTripleChecker+Valid, 7751 SdHoareTripleChecker+Invalid, 8508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4152 IncrementalHoareTripleChecker+Valid, 4355 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-12-28 03:55:57,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8205 Valid, 7751 Invalid, 8508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4152 Valid, 4355 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2021-12-28 03:55:57,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2021-12-28 03:55:58,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2021-12-28 03:55:58,509 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) [2021-12-28 03:55:58,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2021-12-28 03:55:58,583 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2021-12-28 03:55:58,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:55:58,584 INFO L470 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2021-12-28 03:55:58,585 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) [2021-12-28 03:55:58,585 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2021-12-28 03:55:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-28 03:55:58,590 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:55:58,590 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] [2021-12-28 03:55:58,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 03:55:58,591 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:55:58,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:55:58,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2021-12-28 03:55:58,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:55:58,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910754683] [2021-12-28 03:55:58,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:55:58,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:55:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:55:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:55:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:55:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:55:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:55:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:55:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:55:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:55:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-28 03:55:58,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 03:55:58,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:55:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-28 03:55:58,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:55:58,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910754683] [2021-12-28 03:55:58,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910754683] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:55:58,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:55:58,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 03:55:58,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872952863] [2021-12-28 03:55:58,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:55:58,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 03:55:58,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:55:58,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 03:55:58,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:55:58,975 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)