./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 f4b24e32 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-?-f4b24e3 [2022-07-14 00:08:51,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:08:51,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:08:51,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:08:51,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:08:51,555 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:08:51,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:08:51,558 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:08:51,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:08:51,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:08:51,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:08:51,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:08:51,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:08:51,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:08:51,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:08:51,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:08:51,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:08:51,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:08:51,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:08:51,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:08:51,581 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:08:51,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:08:51,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:08:51,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:08:51,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:08:51,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:08:51,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:08:51,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:08:51,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:08:51,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:08:51,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:08:51,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:08:51,594 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:08:51,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:08:51,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:08:51,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:08:51,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:08:51,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:08:51,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:08:51,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:08:51,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:08:51,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:08:51,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:08:51,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:08:51,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:08:51,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:08:51,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:08:51,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:08:51,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:08:51,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:08:51,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:08:51,626 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:08:51,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:08:51,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:08:51,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:08:51,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:08:51,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:08:51,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:08:51,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:08:51,628 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:08:51,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:08:51,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:08:51,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:08:51,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:08:51,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:08:51,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:08:51,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:08:51,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:08:51,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:08:51,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:08:51,631 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:08:51,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:08:51,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:08:51,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2022-07-14 00:08:51,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:08:51,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:08:51,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:08:51,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:08:51,829 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:08:51,830 INFO L432 ainManager$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 [2022-07-14 00:08:51,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/536e66cfd/3a3531e0278a40768145a8aa7edc3eae/FLAGa526a664e [2022-07-14 00:08:52,536 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:08:52,537 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 [2022-07-14 00:08:52,570 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/536e66cfd/3a3531e0278a40768145a8aa7edc3eae/FLAGa526a664e [2022-07-14 00:08:52,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/536e66cfd/3a3531e0278a40768145a8aa7edc3eae [2022-07-14 00:08:52,935 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:08:52,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:08:52,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:08:52,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:08:52,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:08:52,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:08:52" (1/1) ... [2022-07-14 00:08:52,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e51ea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:52, skipping insertion in model container [2022-07-14 00:08:52,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:08:52" (1/1) ... [2022-07-14 00:08:52,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:08:53,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:08:53,936 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] [2022-07-14 00:08:54,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:08:54,917 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:08:55,004 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] [2022-07-14 00:08:55,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:08:55,368 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:08:55,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55 WrapperNode [2022-07-14 00:08:55,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:08:55,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:08:55,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:08:55,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:08:55,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,604 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2022-07-14 00:08:55,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:08:55,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:08:55,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:08:55,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:08:55,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:08:55,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:08:55,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:08:55,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:08:55,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (1/1) ... [2022-07-14 00:08:55,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:08:55,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:08:55,933 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) [2022-07-14 00:08:55,951 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 [2022-07-14 00:08:55,969 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-07-14 00:08:55,969 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-07-14 00:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-07-14 00:08:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-07-14 00:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-07-14 00:08:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-07-14 00:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-07-14 00:08:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-07-14 00:08:55,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 00:08:55,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-14 00:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2022-07-14 00:08:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2022-07-14 00:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-07-14 00:08:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-07-14 00:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:08:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-07-14 00:08:55,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-07-14 00:08:55,971 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-07-14 00:08:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-07-14 00:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-07-14 00:08:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-07-14 00:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-07-14 00:08:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-07-14 00:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-14 00:08:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-14 00:08:55,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-07-14 00:08:55,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-07-14 00:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:08:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-14 00:08:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-14 00:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-07-14 00:08:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-07-14 00:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:08:55,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:08:55,973 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-07-14 00:08:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-07-14 00:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-14 00:08:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-14 00:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-07-14 00:08:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-07-14 00:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-07-14 00:08:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-07-14 00:08:55,974 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-07-14 00:08:55,974 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-07-14 00:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-07-14 00:08:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-07-14 00:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:08:55,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:08:55,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:08:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-07-14 00:08:55,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-07-14 00:08:55,976 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-07-14 00:08:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-07-14 00:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-07-14 00:08:55,977 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-07-14 00:08:55,977 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-07-14 00:08:55,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-07-14 00:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-07-14 00:08:55,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-07-14 00:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:08:55,978 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:08:55,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:08:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-07-14 00:08:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-07-14 00:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-07-14 00:08:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-07-14 00:08:55,979 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-07-14 00:08:55,979 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-07-14 00:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-07-14 00:08:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-07-14 00:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-07-14 00:08:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-07-14 00:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2022-07-14 00:08:55,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2022-07-14 00:08:55,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-07-14 00:08:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-07-14 00:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 00:08:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-14 00:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:08:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 00:08:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 00:08:55,981 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-07-14 00:08:55,981 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-07-14 00:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-07-14 00:08:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-07-14 00:08:55,982 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-07-14 00:08:55,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-07-14 00:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-07-14 00:08:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-07-14 00:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-14 00:08:55,983 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-14 00:08:55,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-14 00:08:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-14 00:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-07-14 00:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-07-14 00:08:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-07-14 00:08:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-07-14 00:08:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-07-14 00:08:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-07-14 00:08:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-07-14 00:08:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:08:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:08:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2022-07-14 00:08:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2022-07-14 00:08:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-07-14 00:08:55,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-07-14 00:08:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:08:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:08:55,989 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-07-14 00:08:55,989 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-07-14 00:08:55,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-14 00:08:55,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-07-14 00:08:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-07-14 00:08:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-07-14 00:08:55,992 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:08:55,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:08:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-07-14 00:08:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-07-14 00:08:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-07-14 00:08:55,994 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-07-14 00:08:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:08:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:08:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:08:55,998 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:08:55,998 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:08:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:08:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-07-14 00:08:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-07-14 00:08:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-07-14 00:08:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-07-14 00:08:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2022-07-14 00:08:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2022-07-14 00:08:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:08:55,999 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:08:55,999 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-07-14 00:08:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-07-14 00:08:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2022-07-14 00:08:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2022-07-14 00:08:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:08:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:08:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-07-14 00:08:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-07-14 00:08:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:08:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:08:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-07-14 00:08:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-07-14 00:08:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-07-14 00:08:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-07-14 00:08:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-07-14 00:08:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-07-14 00:08:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-07-14 00:08:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-07-14 00:08:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-07-14 00:08:56,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-07-14 00:08:56,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:08:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-07-14 00:08:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-07-14 00:08:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-14 00:08:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-14 00:08:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-07-14 00:08:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-07-14 00:08:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-14 00:08:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-14 00:08:56,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-07-14 00:08:56,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-07-14 00:08:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-07-14 00:08:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-07-14 00:08:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:08:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:08:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-14 00:08:56,003 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-14 00:08:56,003 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-07-14 00:08:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-07-14 00:08:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:08:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2022-07-14 00:08:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2022-07-14 00:08:56,004 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-14 00:08:56,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-07-14 00:08:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-07-14 00:08:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-07-14 00:08:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:08:56,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:08:56,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-07-14 00:08:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-07-14 00:08:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-07-14 00:08:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-07-14 00:08:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:08:56,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-14 00:08:56,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2022-07-14 00:08:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2022-07-14 00:08:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:08:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:08:56,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:08:56,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-07-14 00:08:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-07-14 00:08:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-07-14 00:08:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 00:08:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 00:08:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-07-14 00:08:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-07-14 00:08:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2022-07-14 00:08:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2022-07-14 00:08:56,008 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-07-14 00:08:56,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-07-14 00:08:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-07-14 00:08:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-07-14 00:08:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:08:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-07-14 00:08:56,009 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-07-14 00:08:56,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:08:56,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-14 00:08:56,010 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-07-14 00:08:56,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-07-14 00:08:56,011 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:08:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:08:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-14 00:08:56,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-14 00:08:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:08:56,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:08:56,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:08:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-07-14 00:08:56,014 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-07-14 00:08:56,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-07-14 00:08:56,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-07-14 00:08:56,015 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:08:56,015 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:08:56,726 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:08:56,729 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:08:57,060 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:08:57,586 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2022-07-14 00:09:02,629 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:09:02,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:09:02,644 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:09:02,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:09:02 BoogieIcfgContainer [2022-07-14 00:09:02,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:09:02,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:09:02,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:09:02,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:09:02,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:08:52" (1/3) ... [2022-07-14 00:09:02,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b160c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:09:02, skipping insertion in model container [2022-07-14 00:09:02,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:08:55" (2/3) ... [2022-07-14 00:09:02,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0b160c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:09:02, skipping insertion in model container [2022-07-14 00:09:02,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:09:02" (3/3) ... [2022-07-14 00:09:02,667 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-07-14 00:09:02,677 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:09:02,678 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:09:02,735 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:09:02,740 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37ee8738, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4fb8fef9 [2022-07-14 00:09:02,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:09:02,752 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) [2022-07-14 00:09:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-14 00:09:02,765 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:02,766 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:02,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:02,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:02,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2022-07-14 00:09:02,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:02,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150111366] [2022-07-14 00:09:02,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:02,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:09:03,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:09:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:09:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:09:03,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:09:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:09:03,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:03,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150111366] [2022-07-14 00:09:03,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150111366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:03,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:03,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:09:03,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534219670] [2022-07-14 00:09:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:03,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:09:03,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:03,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:09:03,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:09:03,475 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) [2022-07-14 00:09:06,934 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 [] [2022-07-14 00:09:11,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:11,631 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2022-07-14 00:09:11,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:09:11,633 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 [2022-07-14 00:09:11,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:11,678 INFO L225 Difference]: With dead ends: 6691 [2022-07-14 00:09:11,678 INFO L226 Difference]: Without dead ends: 4554 [2022-07-14 00:09:11,696 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:09:11,698 INFO L413 NwaCegarLoop]: 3158 mSDtfsCounter, 4027 mSDsluCounter, 3667 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4347 SdHoareTripleChecker+Valid, 6825 SdHoareTripleChecker+Invalid, 3428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:11,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4347 Valid, 6825 Invalid, 3428 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 2015 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-07-14 00:09:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2022-07-14 00:09:11,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2022-07-14 00:09:11,915 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) [2022-07-14 00:09:11,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2022-07-14 00:09:11,943 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2022-07-14 00:09:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:11,943 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2022-07-14 00:09:11,944 INFO L496 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) [2022-07-14 00:09:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2022-07-14 00:09:11,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-14 00:09:11,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:11,956 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:11,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:09:11,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2022-07-14 00:09:11,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:11,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228317639] [2022-07-14 00:09:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:11,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:09:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:09:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:09:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:09:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:09:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:09:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:09:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:09:12,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:12,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228317639] [2022-07-14 00:09:12,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228317639] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:12,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:12,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:09:12,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543180435] [2022-07-14 00:09:12,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:12,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:09:12,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:12,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:09:12,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:09:12,383 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) [2022-07-14 00:09:15,619 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 [] [2022-07-14 00:09:21,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:21,172 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2022-07-14 00:09:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:09:21,173 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 [2022-07-14 00:09:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:21,227 INFO L225 Difference]: With dead ends: 12746 [2022-07-14 00:09:21,227 INFO L226 Difference]: Without dead ends: 8719 [2022-07-14 00:09:21,251 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:09:21,252 INFO L413 NwaCegarLoop]: 3102 mSDtfsCounter, 3824 mSDsluCounter, 3544 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4156 SdHoareTripleChecker+Valid, 6646 SdHoareTripleChecker+Invalid, 3466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:21,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4156 Valid, 6646 Invalid, 3466 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1358 Valid, 2107 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-07-14 00:09:21,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2022-07-14 00:09:21,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2022-07-14 00:09:21,507 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) [2022-07-14 00:09:21,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2022-07-14 00:09:21,541 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2022-07-14 00:09:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:21,542 INFO L495 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2022-07-14 00:09:21,543 INFO L496 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) [2022-07-14 00:09:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2022-07-14 00:09:21,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-14 00:09:21,547 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:21,547 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:21,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:09:21,548 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:21,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:21,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2022-07-14 00:09:21,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:21,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988329272] [2022-07-14 00:09:21,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:21,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:09:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:09:21,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:09:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:09:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:09:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-14 00:09:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 00:09:21,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:09:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-14 00:09:21,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:21,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988329272] [2022-07-14 00:09:21,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988329272] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:21,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:21,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:09:21,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131754633] [2022-07-14 00:09:21,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:21,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:09:21,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:21,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:09:21,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:09:21,878 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) [2022-07-14 00:09:25,366 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 [] [2022-07-14 00:09:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:34,283 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2022-07-14 00:09:34,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:09:34,283 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 [2022-07-14 00:09:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:34,404 INFO L225 Difference]: With dead ends: 29996 [2022-07-14 00:09:34,405 INFO L226 Difference]: Without dead ends: 22347 [2022-07-14 00:09:34,441 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:09:34,446 INFO L413 NwaCegarLoop]: 3150 mSDtfsCounter, 7750 mSDsluCounter, 4518 mSDsCounter, 0 mSdLazyCounter, 4331 mSolverCounterSat, 4145 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8207 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 8477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4145 IncrementalHoareTripleChecker+Valid, 4331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:34,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8207 Valid, 7668 Invalid, 8477 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4145 Valid, 4331 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-07-14 00:09:34,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2022-07-14 00:09:35,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2022-07-14 00:09:35,177 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) [2022-07-14 00:09:35,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2022-07-14 00:09:35,256 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2022-07-14 00:09:35,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:35,257 INFO L495 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2022-07-14 00:09:35,258 INFO L496 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) [2022-07-14 00:09:35,259 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2022-07-14 00:09:35,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 00:09:35,263 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:35,263 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:35,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:09:35,264 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:35,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2022-07-14 00:09:35,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:35,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411833906] [2022-07-14 00:09:35,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:35,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:09:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:09:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:09:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:09:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:09:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-14 00:09:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:09:35,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:09:35,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:35,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411833906] [2022-07-14 00:09:35,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411833906] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:35,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:35,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:09:35,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375760194] [2022-07-14 00:09:35,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:35,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:09:35,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:35,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:09:35,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:09:35,535 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) [2022-07-14 00:09:38,152 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 [] [2022-07-14 00:09:48,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:48,258 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2022-07-14 00:09:48,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:09:48,259 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 [2022-07-14 00:09:48,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:09:48,488 INFO L225 Difference]: With dead ends: 58956 [2022-07-14 00:09:48,488 INFO L226 Difference]: Without dead ends: 43807 [2022-07-14 00:09:48,548 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:09:48,550 INFO L413 NwaCegarLoop]: 3082 mSDtfsCounter, 7612 mSDsluCounter, 4633 mSDsCounter, 0 mSdLazyCounter, 4397 mSolverCounterSat, 4138 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8045 SdHoareTripleChecker+Valid, 7715 SdHoareTripleChecker+Invalid, 8536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4138 IncrementalHoareTripleChecker+Valid, 4397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:09:48,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8045 Valid, 7715 Invalid, 8536 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4138 Valid, 4397 Invalid, 1 Unknown, 0 Unchecked, 11.3s Time] [2022-07-14 00:09:48,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2022-07-14 00:09:49,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2022-07-14 00:09:49,956 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) [2022-07-14 00:09:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2022-07-14 00:09:50,385 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2022-07-14 00:09:50,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:09:50,385 INFO L495 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2022-07-14 00:09:50,386 INFO L496 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) [2022-07-14 00:09:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2022-07-14 00:09:50,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-14 00:09:50,392 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:09:50,393 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:09:50,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:09:50,393 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:09:50,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:09:50,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2022-07-14 00:09:50,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:09:50,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558621423] [2022-07-14 00:09:50,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:09:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:09:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:09:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:09:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:09:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:09:50,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:09:50,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:09:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:09:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:09:50,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:09:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:09:50,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:09:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:09:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:09:50,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:09:50,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558621423] [2022-07-14 00:09:50,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558621423] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:09:50,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:09:50,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:09:50,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102543804] [2022-07-14 00:09:50,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:09:50,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:09:50,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:09:50,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:09:50,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:09:50,904 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) [2022-07-14 00:09:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:09:59,235 INFO L93 Difference]: Finished difference Result 129915 states and 206472 transitions. [2022-07-14 00:09:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:09:59,236 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 [2022-07-14 00:09:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:00,236 INFO L225 Difference]: With dead ends: 129915 [2022-07-14 00:10:00,237 INFO L226 Difference]: Without dead ends: 91398 [2022-07-14 00:10:00,462 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:10:00,463 INFO L413 NwaCegarLoop]: 3296 mSDtfsCounter, 5910 mSDsluCounter, 4002 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 2840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6219 SdHoareTripleChecker+Valid, 7298 SdHoareTripleChecker+Invalid, 4997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2840 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:00,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6219 Valid, 7298 Invalid, 4997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2840 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-14 00:10:00,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91398 states. [2022-07-14 00:10:03,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91398 to 83018. [2022-07-14 00:10:03,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83018 states, 60770 states have (on average 1.3114530195820306) internal successors, (79697), 61116 states have internal predecessors, (79697), 16759 states have call successors, (16759), 3593 states have call predecessors, (16759), 5488 states have return successors, (29268), 18636 states have call predecessors, (29268), 16752 states have call successors, (29268) [2022-07-14 00:10:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83018 states to 83018 states and 125724 transitions. [2022-07-14 00:10:04,551 INFO L78 Accepts]: Start accepts. Automaton has 83018 states and 125724 transitions. Word has length 92 [2022-07-14 00:10:04,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:04,552 INFO L495 AbstractCegarLoop]: Abstraction has 83018 states and 125724 transitions. [2022-07-14 00:10:04,552 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-07-14 00:10:04,552 INFO L276 IsEmpty]: Start isEmpty. Operand 83018 states and 125724 transitions. [2022-07-14 00:10:04,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-14 00:10:04,554 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:04,554 INFO L195 NwaCegarLoop]: 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] [2022-07-14 00:10:04,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:10:04,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:04,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:04,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2112276362, now seen corresponding path program 1 times [2022-07-14 00:10:04,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:10:04,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774835059] [2022-07-14 00:10:04,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:04,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:10:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:10:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:10:04,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:10:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:10:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:10:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:10:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:10:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:10:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:10:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:10:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:04,925 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:10:04,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:10:04,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774835059] [2022-07-14 00:10:04,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774835059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:04,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:04,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:10:04,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134911205] [2022-07-14 00:10:04,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:04,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:10:04,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:10:04,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:10:04,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:04,928 INFO L87 Difference]: Start difference. First operand 83018 states and 125724 transitions. Second operand has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-07-14 00:10:18,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:18,510 INFO L93 Difference]: Finished difference Result 265587 states and 452903 transitions. [2022-07-14 00:10:18,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:10:18,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 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 93 [2022-07-14 00:10:18,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:20,083 INFO L225 Difference]: With dead ends: 265587 [2022-07-14 00:10:20,083 INFO L226 Difference]: Without dead ends: 182590 [2022-07-14 00:10:20,754 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:10:20,754 INFO L413 NwaCegarLoop]: 3460 mSDtfsCounter, 5662 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 2179 mSolverCounterSat, 2732 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5978 SdHoareTripleChecker+Valid, 7567 SdHoareTripleChecker+Invalid, 4911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2732 IncrementalHoareTripleChecker+Valid, 2179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:20,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5978 Valid, 7567 Invalid, 4911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2732 Valid, 2179 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-07-14 00:10:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182590 states. [2022-07-14 00:10:27,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182590 to 167915. [2022-07-14 00:10:27,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167915 states, 122891 states have (on average 1.3083871072739257) internal successors, (160789), 123505 states have internal predecessors, (160789), 33751 states have call successors, (33751), 7185 states have call predecessors, (33751), 11272 states have return successors, (74860), 37880 states have call predecessors, (74860), 33744 states have call successors, (74860) [2022-07-14 00:10:30,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167915 states to 167915 states and 269400 transitions. [2022-07-14 00:10:30,088 INFO L78 Accepts]: Start accepts. Automaton has 167915 states and 269400 transitions. Word has length 93 [2022-07-14 00:10:30,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:30,089 INFO L495 AbstractCegarLoop]: Abstraction has 167915 states and 269400 transitions. [2022-07-14 00:10:30,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 3 states have internal predecessors, (49), 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) [2022-07-14 00:10:30,089 INFO L276 IsEmpty]: Start isEmpty. Operand 167915 states and 269400 transitions. [2022-07-14 00:10:30,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-14 00:10:30,091 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:30,091 INFO L195 NwaCegarLoop]: 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, 1] [2022-07-14 00:10:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:10:30,092 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:30,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:30,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1057506322, now seen corresponding path program 1 times [2022-07-14 00:10:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:10:30,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426372450] [2022-07-14 00:10:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:10:30,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:10:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:10:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:10:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:10:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:10:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:10:30,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:10:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:10:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:10:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-14 00:10:30,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:30,335 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-14 00:10:30,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:10:30,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426372450] [2022-07-14 00:10:30,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426372450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:30,335 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:30,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:10:30,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670411338] [2022-07-14 00:10:30,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:30,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:10:30,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:10:30,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:10:30,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:10:30,337 INFO L87 Difference]: Start difference. First operand 167915 states and 269400 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 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) [2022-07-14 00:10:33,004 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 [] [2022-07-14 00:10:45,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:45,413 INFO L93 Difference]: Finished difference Result 182588 states and 299012 transitions. [2022-07-14 00:10:45,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:10:45,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 3 states have internal predecessors, (50), 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 94 [2022-07-14 00:10:45,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:46,884 INFO L225 Difference]: With dead ends: 182588 [2022-07-14 00:10:46,884 INFO L226 Difference]: Without dead ends: 182585 [2022-07-14 00:10:46,990 INFO L412 NwaCegarLoop]: 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 [2022-07-14 00:10:46,991 INFO L413 NwaCegarLoop]: 3462 mSDtfsCounter, 4429 mSDsluCounter, 5548 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 1585 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4747 SdHoareTripleChecker+Valid, 9010 SdHoareTripleChecker+Invalid, 4763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1585 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:46,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4747 Valid, 9010 Invalid, 4763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1585 Valid, 3177 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-07-14 00:10:47,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182585 states. [2022-07-14 00:10:53,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182585 to 167916. [2022-07-14 00:10:53,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167916 states, 122892 states have (on average 1.308384597858282) internal successors, (160790), 123506 states have internal predecessors, (160790), 33751 states have call successors, (33751), 7185 states have call predecessors, (33751), 11272 states have return successors, (74860), 37880 states have call predecessors, (74860), 33744 states have call successors, (74860)