./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 e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 14:37:03,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:37:03,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:37:03,457 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:37:03,461 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:37:03,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:37:03,465 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:37:03,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:37:03,468 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:37:03,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:37:03,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:37:03,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:37:03,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:37:03,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:37:03,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:37:03,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:37:03,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:37:03,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:37:03,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:37:03,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:37:03,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:37:03,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:37:03,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:37:03,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:37:03,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:37:03,494 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:37:03,494 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:37:03,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:37:03,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:37:03,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:37:03,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:37:03,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:37:03,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:37:03,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:37:03,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:37:03,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:37:03,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:37:03,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:37:03,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:37:03,501 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:37:03,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:37:03,502 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:37:03,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:37:03,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:37:03,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:37:03,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:37:03,531 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:37:03,531 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:37:03,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:37:03,531 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:37:03,531 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:37:03,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:37:03,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:37:03,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:37:03,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:37:03,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:37:03,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:37:03,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:37:03,533 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:37:03,533 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:37:03,533 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:37:03,534 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:37:03,534 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:37:03,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:37:03,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:37:03,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:37:03,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:37:03,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:37:03,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4437765aefc9e8e96e3710e0e55c61aa0f0e29783186331c7ab028aba8558a0d [2021-12-22 14:37:03,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:37:03,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:37:03,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:37:03,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:37:03,723 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:37:03,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-22 14:37:03,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0883b02fa/9277dd3b512842dfa42234576f8b4385/FLAG9002b27c0 [2021-12-22 14:37:04,358 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:37:04,359 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-22 14:37:04,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0883b02fa/9277dd3b512842dfa42234576f8b4385/FLAG9002b27c0 [2021-12-22 14:37:04,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0883b02fa/9277dd3b512842dfa42234576f8b4385 [2021-12-22 14:37:04,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:37:04,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:37:04,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:37:04,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:37:04,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:37:04,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:37:04" (1/1) ... [2021-12-22 14:37:04,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190cce4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:04, skipping insertion in model container [2021-12-22 14:37:04,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:37:04" (1/1) ... [2021-12-22 14:37:04,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:37:04,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:37:06,080 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-22 14:37:06,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:37:06,879 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:37:06,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2021-12-22 14:37:07,162 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:37:07,282 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:37:07,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07 WrapperNode [2021-12-22 14:37:07,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:37:07,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:37:07,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:37:07,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:37:07,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,509 INFO L137 Inliner]: procedures = 371, calls = 3017, calls flagged for inlining = 198, calls inlined = 180, statements flattened = 6286 [2021-12-22 14:37:07,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:37:07,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:37:07,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:37:07,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:37:07,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,561 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:37:07,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:37:07,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:37:07,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:37:07,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (1/1) ... [2021-12-22 14:37:07,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:37:07,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:37:07,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 14:37:07,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 14:37:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2021-12-22 14:37:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2021-12-22 14:37:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2021-12-22 14:37:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2021-12-22 14:37:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2021-12-22 14:37:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2021-12-22 14:37:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-12-22 14:37:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-12-22 14:37:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:37:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-22 14:37:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2021-12-22 14:37:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2021-12-22 14:37:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2021-12-22 14:37:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2021-12-22 14:37:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:37:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:37:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2021-12-22 14:37:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2021-12-22 14:37:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-12-22 14:37:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-12-22 14:37:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-12-22 14:37:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-12-22 14:37:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2021-12-22 14:37:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2021-12-22 14:37:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-22 14:37:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-22 14:37:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-12-22 14:37:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-12-22 14:37:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:37:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:37:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-22 14:37:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-22 14:37:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-12-22 14:37:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-12-22 14:37:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:37:07,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:37:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-22 14:37:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-22 14:37:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-22 14:37:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-22 14:37:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-22 14:37:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-22 14:37:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2021-12-22 14:37:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2021-12-22 14:37:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-12-22 14:37:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-12-22 14:37:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2021-12-22 14:37:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2021-12-22 14:37:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:37:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:37:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:37:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:37:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2021-12-22 14:37:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2021-12-22 14:37:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-12-22 14:37:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-12-22 14:37:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2021-12-22 14:37:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2021-12-22 14:37:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-22 14:37:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-22 14:37:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2021-12-22 14:37:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2021-12-22 14:37:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:37:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:37:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:37:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:37:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2021-12-22 14:37:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2021-12-22 14:37:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2021-12-22 14:37:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2021-12-22 14:37:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-12-22 14:37:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-12-22 14:37:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-12-22 14:37:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-12-22 14:37:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2021-12-22 14:37:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2021-12-22 14:37:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2021-12-22 14:37:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2021-12-22 14:37:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2021-12-22 14:37:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2021-12-22 14:37:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:37:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-12-22 14:37:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 14:37:07,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 14:37:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:37:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 14:37:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 14:37:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-12-22 14:37:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-12-22 14:37:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2021-12-22 14:37:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2021-12-22 14:37:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2021-12-22 14:37:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2021-12-22 14:37:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-12-22 14:37:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-12-22 14:37:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-22 14:37:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-22 14:37:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:37:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:37:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-12-22 14:37:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-12-22 14:37:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-22 14:37:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:37:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:37:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2021-12-22 14:37:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2021-12-22 14:37:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2021-12-22 14:37:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2021-12-22 14:37:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:37:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:37:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2021-12-22 14:37:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2021-12-22 14:37:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:37:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-12-22 14:37:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:37:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:37:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-22 14:37:07,843 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-22 14:37:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2021-12-22 14:37:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2021-12-22 14:37:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-12-22 14:37:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-12-22 14:37:07,845 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 14:37:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 14:37:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-22 14:37:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-22 14:37:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:37:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:37:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-12-22 14:37:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-12-22 14:37:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2021-12-22 14:37:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2021-12-22 14:37:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2021-12-22 14:37:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 14:37:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-12-22 14:37:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2021-12-22 14:37:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:37:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-12-22 14:37:07,851 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-12-22 14:37:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 14:37:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 14:37:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-22 14:37:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-22 14:37:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2021-12-22 14:37:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2021-12-22 14:37:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-12-22 14:37:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-12-22 14:37:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-12-22 14:37:07,852 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-12-22 14:37:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2021-12-22 14:37:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2021-12-22 14:37:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:37:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2021-12-22 14:37:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2021-12-22 14:37:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-12-22 14:37:07,853 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-12-22 14:37:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-12-22 14:37:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-12-22 14:37:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-22 14:37:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-22 14:37:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2021-12-22 14:37:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2021-12-22 14:37:07,891 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2021-12-22 14:37:07,891 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:37:07,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:37:07,892 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:37:07,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:37:07,893 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-22 14:37:07,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:37:07,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:37:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:37:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-22 14:37:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-22 14:37:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2021-12-22 14:37:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2021-12-22 14:37:07,895 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:37:07,895 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:37:08,525 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:37:08,527 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:37:08,750 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:37:09,215 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2021-12-22 14:37:14,218 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:37:14,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:37:14,237 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 14:37:14,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:37:14 BoogieIcfgContainer [2021-12-22 14:37:14,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:37:14,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:37:14,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:37:14,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:37:14,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:37:04" (1/3) ... [2021-12-22 14:37:14,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ea2553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:37:14, skipping insertion in model container [2021-12-22 14:37:14,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:37:07" (2/3) ... [2021-12-22 14:37:14,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ea2553 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:37:14, skipping insertion in model container [2021-12-22 14:37:14,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:37:14" (3/3) ... [2021-12-22 14:37:14,244 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-12-22 14:37:14,247 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:37:14,248 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:37:14,377 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:37:14,384 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 14:37:14,384 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:37:14,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) [2021-12-22 14:37:14,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-12-22 14:37:14,477 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:14,477 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:14,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:14,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:14,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1989796788, now seen corresponding path program 1 times [2021-12-22 14:37:14,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:14,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089174952] [2021-12-22 14:37:14,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:14,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:14,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:14,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:14,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:14,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:14,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:15,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:15,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 14:37:15,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:15,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089174952] [2021-12-22 14:37:15,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089174952] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:15,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:15,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:37:15,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124148412] [2021-12-22 14:37:15,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:15,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:37:15,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:15,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:37:15,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:37:15,079 INFO L87 Difference]: Start difference. First operand has 2105 states, 1518 states have (on average 1.3399209486166008) internal successors, (2034), 1559 states have internal predecessors, (2034), 465 states have call successors, (465), 122 states have call predecessors, (465), 120 states have return successors, (451), 440 states have call predecessors, (451), 451 states have call successors, (451) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 14:37:18,415 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:22,512 INFO L93 Difference]: Finished difference Result 6691 states and 9849 transitions. [2021-12-22 14:37:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:37:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 69 [2021-12-22 14:37:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:22,553 INFO L225 Difference]: With dead ends: 6691 [2021-12-22 14:37:22,554 INFO L226 Difference]: Without dead ends: 4554 [2021-12-22 14:37:22,570 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:22,572 INFO L933 BasicCegarLoop]: 3161 mSDtfsCounter, 4027 mSDsluCounter, 3905 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 1412 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4348 SdHoareTripleChecker+Valid, 7066 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1412 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:22,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4348 Valid, 7066 Invalid, 3185 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1412 Valid, 1772 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-12-22 14:37:22,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4554 states. [2021-12-22 14:37:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4554 to 4048. [2021-12-22 14:37:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2945 states have (on average 1.33276740237691) internal successors, (3925), 2988 states have internal predecessors, (3925), 866 states have call successors, (866), 237 states have call predecessors, (866), 236 states have return successors, (859), 837 states have call predecessors, (859), 859 states have call successors, (859) [2021-12-22 14:37:22,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5650 transitions. [2021-12-22 14:37:22,814 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5650 transitions. Word has length 69 [2021-12-22 14:37:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 4048 states and 5650 transitions. [2021-12-22 14:37:22,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-22 14:37:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5650 transitions. [2021-12-22 14:37:22,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-22 14:37:22,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:22,828 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:22,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 14:37:22,828 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:22,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:22,829 INFO L85 PathProgramCache]: Analyzing trace with hash -2119451424, now seen corresponding path program 1 times [2021-12-22 14:37:22,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:22,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532797594] [2021-12-22 14:37:22,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:22,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-12-22 14:37:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-22 14:37:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 14:37:23,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:23,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532797594] [2021-12-22 14:37:23,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532797594] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:23,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:23,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:37:23,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512509758] [2021-12-22 14:37:23,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:23,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:37:23,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:23,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:37:23,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:37:23,271 INFO L87 Difference]: Start difference. First operand 4048 states and 5650 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:37:26,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:30,881 INFO L93 Difference]: Finished difference Result 12746 states and 17994 transitions. [2021-12-22 14:37:30,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 14:37:30,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2021-12-22 14:37:30,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:30,934 INFO L225 Difference]: With dead ends: 12746 [2021-12-22 14:37:30,934 INFO L226 Difference]: Without dead ends: 8719 [2021-12-22 14:37:30,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:30,958 INFO L933 BasicCegarLoop]: 3104 mSDtfsCounter, 3824 mSDsluCounter, 3785 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 1358 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4155 SdHoareTripleChecker+Valid, 6889 SdHoareTripleChecker+Invalid, 3216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1358 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:30,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4155 Valid, 6889 Invalid, 3216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1358 Valid, 1857 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-12-22 14:37:30,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8719 states. [2021-12-22 14:37:31,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8719 to 7670. [2021-12-22 14:37:31,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7670 states, 5584 states have (on average 1.3273638968481376) internal successors, (7412), 5665 states have internal predecessors, (7412), 1627 states have call successors, (1627), 459 states have call predecessors, (1627), 458 states have return successors, (1620), 1575 states have call predecessors, (1620), 1620 states have call successors, (1620) [2021-12-22 14:37:31,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7670 states to 7670 states and 10659 transitions. [2021-12-22 14:37:31,248 INFO L78 Accepts]: Start accepts. Automaton has 7670 states and 10659 transitions. Word has length 89 [2021-12-22 14:37:31,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:31,249 INFO L470 AbstractCegarLoop]: Abstraction has 7670 states and 10659 transitions. [2021-12-22 14:37:31,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:37:31,250 INFO L276 IsEmpty]: Start isEmpty. Operand 7670 states and 10659 transitions. [2021-12-22 14:37:31,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-12-22 14:37:31,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:31,254 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:31,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 14:37:31,255 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:31,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:31,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1481995065, now seen corresponding path program 1 times [2021-12-22 14:37:31,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:31,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021639503] [2021-12-22 14:37:31,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:31,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:31,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:31,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:31,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:31,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2021-12-22 14:37:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2021-12-22 14:37:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:37:31,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:31,525 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-22 14:37:31,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:31,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021639503] [2021-12-22 14:37:31,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021639503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:31,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:31,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:37:31,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714446132] [2021-12-22 14:37:31,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:31,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:37:31,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:31,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:37:31,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:31,528 INFO L87 Difference]: Start difference. First operand 7670 states and 10659 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:37:34,997 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:42,249 INFO L93 Difference]: Finished difference Result 29996 states and 43373 transitions. [2021-12-22 14:37:42,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:37:42,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2021-12-22 14:37:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:42,377 INFO L225 Difference]: With dead ends: 29996 [2021-12-22 14:37:42,377 INFO L226 Difference]: Without dead ends: 22347 [2021-12-22 14:37:42,421 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:37:42,425 INFO L933 BasicCegarLoop]: 3162 mSDtfsCounter, 7747 mSDsluCounter, 4848 mSDsCounter, 0 mSdLazyCounter, 4048 mSolverCounterSat, 4137 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8196 SdHoareTripleChecker+Valid, 8010 SdHoareTripleChecker+Invalid, 8186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4137 IncrementalHoareTripleChecker+Valid, 4048 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:42,427 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8196 Valid, 8010 Invalid, 8186 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4137 Valid, 4048 Invalid, 1 Unknown, 0 Unchecked, 10.0s Time] [2021-12-22 14:37:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22347 states. [2021-12-22 14:37:43,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22347 to 15170. [2021-12-22 14:37:43,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15170 states, 11050 states have (on average 1.3270588235294118) internal successors, (14664), 11207 states have internal predecessors, (14664), 3207 states have call successors, (3207), 913 states have call predecessors, (3207), 912 states have return successors, (3200), 3109 states have call predecessors, (3200), 3200 states have call successors, (3200) [2021-12-22 14:37:43,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15170 states to 15170 states and 21071 transitions. [2021-12-22 14:37:43,122 INFO L78 Accepts]: Start accepts. Automaton has 15170 states and 21071 transitions. Word has length 97 [2021-12-22 14:37:43,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:43,123 INFO L470 AbstractCegarLoop]: Abstraction has 15170 states and 21071 transitions. [2021-12-22 14:37:43,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:37:43,124 INFO L276 IsEmpty]: Start isEmpty. Operand 15170 states and 21071 transitions. [2021-12-22 14:37:43,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-22 14:37:43,128 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:43,128 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:43,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 14:37:43,128 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:43,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:43,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1715328829, now seen corresponding path program 1 times [2021-12-22 14:37:43,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:43,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31427018] [2021-12-22 14:37:43,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:43,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 14:37:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:37:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:43,350 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 14:37:43,350 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:43,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31427018] [2021-12-22 14:37:43,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31427018] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:43,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:43,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:37:43,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427757138] [2021-12-22 14:37:43,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:43,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:37:43,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:43,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:37:43,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:43,353 INFO L87 Difference]: Start difference. First operand 15170 states and 21071 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:37:46,008 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 14:37:55,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:37:55,801 INFO L93 Difference]: Finished difference Result 58956 states and 86037 transitions. [2021-12-22 14:37:55,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 14:37:55,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2021-12-22 14:37:55,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:37:55,998 INFO L225 Difference]: With dead ends: 58956 [2021-12-22 14:37:55,998 INFO L226 Difference]: Without dead ends: 43807 [2021-12-22 14:37:56,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 14:37:56,056 INFO L933 BasicCegarLoop]: 3082 mSDtfsCounter, 7609 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 4099 mSolverCounterSat, 4112 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8049 SdHoareTripleChecker+Valid, 8003 SdHoareTripleChecker+Invalid, 8212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4112 IncrementalHoareTripleChecker+Valid, 4099 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-22 14:37:56,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8049 Valid, 8003 Invalid, 8212 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4112 Valid, 4099 Invalid, 1 Unknown, 0 Unchecked, 11.2s Time] [2021-12-22 14:37:56,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43807 states. [2021-12-22 14:37:57,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43807 to 38538. [2021-12-22 14:37:57,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38538 states, 28142 states have (on average 1.3164664913652193) internal successors, (37048), 28354 states have internal predecessors, (37048), 7991 states have call successors, (7991), 1797 states have call predecessors, (7991), 2404 states have return successors, (10352), 8534 states have call predecessors, (10352), 7984 states have call successors, (10352) [2021-12-22 14:37:57,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38538 states to 38538 states and 55391 transitions. [2021-12-22 14:37:57,648 INFO L78 Accepts]: Start accepts. Automaton has 38538 states and 55391 transitions. Word has length 93 [2021-12-22 14:37:57,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 14:37:57,649 INFO L470 AbstractCegarLoop]: Abstraction has 38538 states and 55391 transitions. [2021-12-22 14:37:57,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (15), 4 states have call predecessors, (15), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-22 14:37:57,650 INFO L276 IsEmpty]: Start isEmpty. Operand 38538 states and 55391 transitions. [2021-12-22 14:37:57,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-12-22 14:37:57,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:37:57,761 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 14:37:57,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-22 14:37:57,761 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:37:57,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:37:57,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2146301045, now seen corresponding path program 1 times [2021-12-22 14:37:57,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:37:57,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934980754] [2021-12-22 14:37:57,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:37:57,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:37:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:37:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:37:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:37:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:37:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-22 14:37:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 14:37:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 14:37:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 14:37:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:57,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-22 14:37:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:58,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-22 14:37:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:58,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 14:37:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:37:58,023 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2021-12-22 14:37:58,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:37:58,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934980754] [2021-12-22 14:37:58,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934980754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:37:58,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:37:58,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 14:37:58,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222505576] [2021-12-22 14:37:58,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:37:58,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 14:37:58,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:37:58,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 14:37:58,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-22 14:37:58,026 INFO L87 Difference]: Start difference. First operand 38538 states and 55391 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-12-22 14:38:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 14:38:05,082 INFO L93 Difference]: Finished difference Result 129915 states and 206472 transitions. [2021-12-22 14:38:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 14:38:05,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 92 [2021-12-22 14:38:05,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 14:38:05,891 INFO L225 Difference]: With dead ends: 129915 [2021-12-22 14:38:05,891 INFO L226 Difference]: Without dead ends: 91398 [2021-12-22 14:38:06,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-22 14:38:06,093 INFO L933 BasicCegarLoop]: 3297 mSDtfsCounter, 5914 mSDsluCounter, 4247 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 2844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 7544 SdHoareTripleChecker+Invalid, 4746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2844 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-12-22 14:38:06,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 7544 Invalid, 4746 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2844 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-12-22 14:38:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91398 states.