./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-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 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 14:43:57,660 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 14:43:57,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 14:43:57,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 14:43:57,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 14:43:57,722 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 14:43:57,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 14:43:57,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 14:43:57,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 14:43:57,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 14:43:57,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 14:43:57,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 14:43:57,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 14:43:57,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 14:43:57,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 14:43:57,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 14:43:57,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 14:43:57,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 14:43:57,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 14:43:57,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 14:43:57,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 14:43:57,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 14:43:57,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 14:43:57,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 14:43:57,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 14:43:57,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 14:43:57,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 14:43:57,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 14:43:57,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 14:43:57,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 14:43:57,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 14:43:57,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 14:43:57,769 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 14:43:57,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 14:43:57,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 14:43:57,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 14:43:57,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 14:43:57,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 14:43:57,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 14:43:57,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 14:43:57,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 14:43:57,776 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 14:43:57,810 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 14:43:57,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 14:43:57,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 14:43:57,811 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 14:43:57,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 14:43:57,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 14:43:57,812 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 14:43:57,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 14:43:57,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 14:43:57,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 14:43:57,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 14:43:57,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 14:43:57,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 14:43:57,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 14:43:57,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 14:43:57,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 14:43:57,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 14:43:57,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 14:43:57,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 14:43:57,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:43:57,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 14:43:57,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 14:43:57,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 14:43:57,816 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 14:43:57,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 14:43:57,816 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 14:43:57,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 14:43:57,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 14:43:57,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 14:43:57,817 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2021-11-07 14:43:57,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 14:43:58,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 14:43:58,008 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 14:43:58,009 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 14:43:58,009 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 14:43:58,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 14:43:58,065 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c14140c5/ee0fda0064ee4f3198a8da9dbb0f090f/FLAG0e27b017b [2021-11-07 14:43:58,749 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 14:43:58,750 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 14:43:58,796 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c14140c5/ee0fda0064ee4f3198a8da9dbb0f090f/FLAG0e27b017b [2021-11-07 14:43:59,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c14140c5/ee0fda0064ee4f3198a8da9dbb0f090f [2021-11-07 14:43:59,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 14:43:59,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 14:43:59,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 14:43:59,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 14:43:59,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 14:43:59,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:59" (1/1) ... [2021-11-07 14:43:59,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d295cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:43:59, skipping insertion in model container [2021-11-07 14:43:59,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:43:59" (1/1) ... [2021-11-07 14:43:59,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 14:43:59,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 14:44:00,982 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-11-07 14:44:01,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:44:01,111 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 14:44:01,511 WARN L228 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-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2021-11-07 14:44:01,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 14:44:01,672 INFO L208 MainTranslator]: Completed translation [2021-11-07 14:44:01,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01 WrapperNode [2021-11-07 14:44:01,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 14:44:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 14:44:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 14:44:01,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 14:44:01,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:01,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 14:44:02,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 14:44:02,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 14:44:02,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 14:44:02,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 14:44:02,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 14:44:02,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 14:44:02,791 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 14:44:02,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (1/1) ... [2021-11-07 14:44:02,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 14:44:02,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 14:44:02,857 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) [2021-11-07 14:44:02,927 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 [2021-11-07 14:44:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2021-11-07 14:44:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2021-11-07 14:44:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2021-11-07 14:44:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2021-11-07 14:44:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2021-11-07 14:44:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2021-11-07 14:44:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2021-11-07 14:44:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2021-11-07 14:44:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2021-11-07 14:44:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2021-11-07 14:44:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2021-11-07 14:44:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2021-11-07 14:44:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 14:44:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-07 14:44:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2021-11-07 14:44:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2021-11-07 14:44:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 14:44:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2021-11-07 14:44:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2021-11-07 14:44:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 14:44:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2021-11-07 14:44:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2021-11-07 14:44:02,971 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2021-11-07 14:44:02,971 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2021-11-07 14:44:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2021-11-07 14:44:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2021-11-07 14:44:02,972 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 14:44:02,972 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2021-11-07 14:44:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2021-11-07 14:44:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 14:44:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2021-11-07 14:44:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-07 14:44:02,973 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-07 14:44:02,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 14:44:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 14:44:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 14:44:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:44:02,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-07 14:44:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:44:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 14:44:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2021-11-07 14:44:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2021-11-07 14:44:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2021-11-07 14:44:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2021-11-07 14:44:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 14:44:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 14:44:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2021-11-07 14:44:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2021-11-07 14:44:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-07 14:44:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-07 14:44:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2021-11-07 14:44:02,989 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2021-11-07 14:44:02,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 14:44:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 14:44:02,990 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2021-11-07 14:44:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2021-11-07 14:44:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2021-11-07 14:44:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2021-11-07 14:44:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 14:44:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2021-11-07 14:44:02,991 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2021-11-07 14:44:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 14:44:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2021-11-07 14:44:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 14:44:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2021-11-07 14:44:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2021-11-07 14:44:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2021-11-07 14:44:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2021-11-07 14:44:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 14:44:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2021-11-07 14:44:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2021-11-07 14:44:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-11-07 14:44:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-11-07 14:44:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2021-11-07 14:44:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2021-11-07 14:44:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2021-11-07 14:44:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2021-11-07 14:44:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:44:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 14:44:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 14:44:37,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 14:44:37,747 INFO L299 CfgBuilder]: Removed 2091 assume(true) statements. [2021-11-07 14:44:37,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:44:37 BoogieIcfgContainer [2021-11-07 14:44:37,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 14:44:37,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 14:44:37,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 14:44:37,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 14:44:37,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:43:59" (1/3) ... [2021-11-07 14:44:37,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f2819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:44:37, skipping insertion in model container [2021-11-07 14:44:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:44:01" (2/3) ... [2021-11-07 14:44:37,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1f2819 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:44:37, skipping insertion in model container [2021-11-07 14:44:37,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:44:37" (3/3) ... [2021-11-07 14:44:37,764 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2021-11-07 14:44:37,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 14:44:37,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 14:44:37,821 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 14:44:37,830 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 [2021-11-07 14:44:37,830 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 14:44:37,878 INFO L276 IsEmpty]: Start isEmpty. Operand has 2561 states, 2400 states have (on average 1.3958333333333333) internal successors, (3350), 2420 states have internal predecessors, (3350), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 14:44:37,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 14:44:37,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:37,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:37,905 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash -446975168, now seen corresponding path program 1 times [2021-11-07 14:44:37,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:37,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657809733] [2021-11-07 14:44:37,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:37,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:38,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:38,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657809733] [2021-11-07 14:44:38,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657809733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:38,931 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:38,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:44:38,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001845065] [2021-11-07 14:44:38,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:38,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 14:44:38,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:38,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 14:44:38,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:44:38,975 INFO L87 Difference]: Start difference. First operand has 2561 states, 2400 states have (on average 1.3958333333333333) internal successors, (3350), 2420 states have internal predecessors, (3350), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:39,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:39,139 INFO L93 Difference]: Finished difference Result 5118 states and 7222 transitions. [2021-11-07 14:44:39,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 14:44:39,141 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 14:44:39,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:39,172 INFO L225 Difference]: With dead ends: 5118 [2021-11-07 14:44:39,173 INFO L226 Difference]: Without dead ends: 2546 [2021-11-07 14:44:39,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 14:44:39,197 INFO L933 BasicCegarLoop]: 3493 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3493 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:39,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3493 Invalid, 0 Unknown, 0 Unchecked, 12.38ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-07 14:44:39,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2546 states. [2021-11-07 14:44:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2546 to 2546. [2021-11-07 14:44:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2546 states, 2386 states have (on average 1.359178541492037) internal successors, (3243), 2405 states have internal predecessors, (3243), 112 states have call successors, (112), 37 states have call predecessors, (112), 37 states have return successors, (112), 105 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 14:44:39,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2546 states to 2546 states and 3467 transitions. [2021-11-07 14:44:39,361 INFO L78 Accepts]: Start accepts. Automaton has 2546 states and 3467 transitions. Word has length 110 [2021-11-07 14:44:39,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:39,362 INFO L470 AbstractCegarLoop]: Abstraction has 2546 states and 3467 transitions. [2021-11-07 14:44:39,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2546 states and 3467 transitions. [2021-11-07 14:44:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 14:44:39,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:39,374 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:39,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 14:44:39,375 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:39,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:39,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1434476754, now seen corresponding path program 1 times [2021-11-07 14:44:39,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:39,378 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828392853] [2021-11-07 14:44:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:39,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:39,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:39,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:39,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828392853] [2021-11-07 14:44:39,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828392853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:39,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:39,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:44:39,920 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739104272] [2021-11-07 14:44:39,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:39,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:44:39,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:39,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:44:39,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:39,923 INFO L87 Difference]: Start difference. First operand 2546 states and 3467 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:42,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:44:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:42,380 INFO L93 Difference]: Finished difference Result 7260 states and 9953 transitions. [2021-11-07 14:44:42,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:44:42,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 14:44:42,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:42,410 INFO L225 Difference]: With dead ends: 7260 [2021-11-07 14:44:42,410 INFO L226 Difference]: Without dead ends: 4798 [2021-11-07 14:44:42,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:42,424 INFO L933 BasicCegarLoop]: 3576 mSDtfsCounter, 3290 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2148.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3290 SdHoareTripleChecker+Valid, 6842 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.37ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2288.36ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:42,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3290 Valid, 6842 Invalid, 15 Unknown, 0 Unchecked, 18.37ms Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2288.36ms Time] [2021-11-07 14:44:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4798 states. [2021-11-07 14:44:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4798 to 4778. [2021-11-07 14:44:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4778 states, 4469 states have (on average 1.3696576415305437) internal successors, (6121), 4497 states have internal predecessors, (6121), 224 states have call successors, (224), 74 states have call predecessors, (224), 74 states have return successors, (224), 210 states have call predecessors, (224), 224 states have call successors, (224) [2021-11-07 14:44:42,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4778 states to 4778 states and 6569 transitions. [2021-11-07 14:44:42,581 INFO L78 Accepts]: Start accepts. Automaton has 4778 states and 6569 transitions. Word has length 110 [2021-11-07 14:44:42,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:42,583 INFO L470 AbstractCegarLoop]: Abstraction has 4778 states and 6569 transitions. [2021-11-07 14:44:42,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:42,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4778 states and 6569 transitions. [2021-11-07 14:44:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-07 14:44:42,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:42,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:42,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 14:44:42,596 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:42,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:42,597 INFO L85 PathProgramCache]: Analyzing trace with hash -376049304, now seen corresponding path program 1 times [2021-11-07 14:44:42,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:42,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982370226] [2021-11-07 14:44:42,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:42,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:42,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:43,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:43,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982370226] [2021-11-07 14:44:43,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982370226] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:43,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:43,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 14:44:43,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689992407] [2021-11-07 14:44:43,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:43,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:44:43,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:43,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:44:43,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:43,171 INFO L87 Difference]: Start difference. First operand 4778 states and 6569 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:43,480 INFO L93 Difference]: Finished difference Result 14144 states and 19610 transitions. [2021-11-07 14:44:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:44:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-11-07 14:44:43,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:43,550 INFO L225 Difference]: With dead ends: 14144 [2021-11-07 14:44:43,551 INFO L226 Difference]: Without dead ends: 9427 [2021-11-07 14:44:43,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.14ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:43,593 INFO L933 BasicCegarLoop]: 3568 mSDtfsCounter, 3333 mSDsluCounter, 3346 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 6914 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.92ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.17ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:43,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3333 Valid, 6914 Invalid, 59 Unknown, 0 Unchecked, 17.92ms Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 64.17ms Time] [2021-11-07 14:44:43,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9427 states. [2021-11-07 14:44:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9427 to 9397. [2021-11-07 14:44:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9397 states, 8790 states have (on average 1.3717861205915813) internal successors, (12058), 8836 states have internal predecessors, (12058), 448 states have call successors, (448), 148 states have call predecessors, (448), 148 states have return successors, (468), 420 states have call predecessors, (468), 448 states have call successors, (468) [2021-11-07 14:44:43,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9397 states to 9397 states and 12974 transitions. [2021-11-07 14:44:43,903 INFO L78 Accepts]: Start accepts. Automaton has 9397 states and 12974 transitions. Word has length 110 [2021-11-07 14:44:43,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:43,904 INFO L470 AbstractCegarLoop]: Abstraction has 9397 states and 12974 transitions. [2021-11-07 14:44:43,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:43,905 INFO L276 IsEmpty]: Start isEmpty. Operand 9397 states and 12974 transitions. [2021-11-07 14:44:43,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 14:44:43,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:43,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:43,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 14:44:43,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:43,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1377137642, now seen corresponding path program 1 times [2021-11-07 14:44:43,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:43,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797177201] [2021-11-07 14:44:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:43,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:44,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:44,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797177201] [2021-11-07 14:44:44,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797177201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:44,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:44,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:44:44,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217083993] [2021-11-07 14:44:44,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:44,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:44:44,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:44,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:44:44,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:44,403 INFO L87 Difference]: Start difference. First operand 9397 states and 12974 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:45,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:45,201 INFO L93 Difference]: Finished difference Result 27578 states and 38331 transitions. [2021-11-07 14:44:45,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:44:45,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-07 14:44:45,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:45,297 INFO L225 Difference]: With dead ends: 27578 [2021-11-07 14:44:45,298 INFO L226 Difference]: Without dead ends: 18265 [2021-11-07 14:44:45,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:45,350 INFO L933 BasicCegarLoop]: 3632 mSDtfsCounter, 3269 mSDsluCounter, 3336 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3269 SdHoareTripleChecker+Valid, 6968 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.18ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 183.84ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:45,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3269 Valid, 6968 Invalid, 34 Unknown, 0 Unchecked, 18.18ms Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 183.84ms Time] [2021-11-07 14:44:45,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18265 states. [2021-11-07 14:44:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18265 to 18147. [2021-11-07 14:44:45,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18147 states, 16980 states have (on average 1.3749116607773852) internal successors, (23346), 17058 states have internal predecessors, (23346), 868 states have call successors, (868), 288 states have call predecessors, (868), 288 states have return successors, (1118), 816 states have call predecessors, (1118), 868 states have call successors, (1118) [2021-11-07 14:44:45,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18147 states to 18147 states and 25332 transitions. [2021-11-07 14:44:45,987 INFO L78 Accepts]: Start accepts. Automaton has 18147 states and 25332 transitions. Word has length 122 [2021-11-07 14:44:45,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:45,988 INFO L470 AbstractCegarLoop]: Abstraction has 18147 states and 25332 transitions. [2021-11-07 14:44:45,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:45,989 INFO L276 IsEmpty]: Start isEmpty. Operand 18147 states and 25332 transitions. [2021-11-07 14:44:45,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-07 14:44:45,997 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:45,998 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:45,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 14:44:45,998 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:45,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:45,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1382664594, now seen corresponding path program 1 times [2021-11-07 14:44:45,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:45,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437606841] [2021-11-07 14:44:46,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:46,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:46,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:46,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437606841] [2021-11-07 14:44:46,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437606841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:46,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:46,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:44:46,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961172318] [2021-11-07 14:44:46,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:46,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:44:46,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:46,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:44:46,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:46,470 INFO L87 Difference]: Start difference. First operand 18147 states and 25332 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:47,492 INFO L93 Difference]: Finished difference Result 50815 states and 70676 transitions. [2021-11-07 14:44:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:44:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-07 14:44:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:47,670 INFO L225 Difference]: With dead ends: 50815 [2021-11-07 14:44:47,671 INFO L226 Difference]: Without dead ends: 32752 [2021-11-07 14:44:47,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.12ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:47,760 INFO L933 BasicCegarLoop]: 3580 mSDtfsCounter, 2815 mSDsluCounter, 3275 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 281.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 6855 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.15ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323.87ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:47,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 6855 Invalid, 98 Unknown, 0 Unchecked, 12.15ms Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 323.87ms Time] [2021-11-07 14:44:47,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32752 states. [2021-11-07 14:44:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32752 to 32607. [2021-11-07 14:44:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32607 states, 30564 states have (on average 1.3706975526763512) internal successors, (41894), 30710 states have internal predecessors, (41894), 1480 states have call successors, (1480), 552 states have call predecessors, (1480), 552 states have return successors, (1920), 1376 states have call predecessors, (1920), 1480 states have call successors, (1920) [2021-11-07 14:44:48,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32607 states to 32607 states and 45294 transitions. [2021-11-07 14:44:48,689 INFO L78 Accepts]: Start accepts. Automaton has 32607 states and 45294 transitions. Word has length 122 [2021-11-07 14:44:48,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:48,689 INFO L470 AbstractCegarLoop]: Abstraction has 32607 states and 45294 transitions. [2021-11-07 14:44:48,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:48,690 INFO L276 IsEmpty]: Start isEmpty. Operand 32607 states and 45294 transitions. [2021-11-07 14:44:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-07 14:44:48,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:48,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:48,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 14:44:48,697 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:48,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:48,698 INFO L85 PathProgramCache]: Analyzing trace with hash -337432058, now seen corresponding path program 1 times [2021-11-07 14:44:48,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:48,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210782288] [2021-11-07 14:44:48,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:48,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:49,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:49,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210782288] [2021-11-07 14:44:49,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210782288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:49,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:49,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:44:49,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46800486] [2021-11-07 14:44:49,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:49,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:44:49,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:49,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:44:49,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:49,248 INFO L87 Difference]: Start difference. First operand 32607 states and 45294 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:50,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:44:50,659 INFO L93 Difference]: Finished difference Result 95537 states and 133950 transitions. [2021-11-07 14:44:50,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:44:50,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-07 14:44:50,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:44:51,079 INFO L225 Difference]: With dead ends: 95537 [2021-11-07 14:44:51,079 INFO L226 Difference]: Without dead ends: 63014 [2021-11-07 14:44:51,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:44:51,270 INFO L933 BasicCegarLoop]: 4376 mSDtfsCounter, 3438 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 139.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3438 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.96ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.45ms IncrementalHoareTripleChecker+Time [2021-11-07 14:44:51,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3438 Valid, 7748 Invalid, 38 Unknown, 0 Unchecked, 12.96ms Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 164.45ms Time] [2021-11-07 14:44:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63014 states. [2021-11-07 14:44:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63014 to 62879. [2021-11-07 14:44:53,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62879 states, 59036 states have (on average 1.3703164171014297) internal successors, (80898), 59254 states have internal predecessors, (80898), 2752 states have call successors, (2752), 1064 states have call predecessors, (2752), 1080 states have return successors, (4960), 2616 states have call predecessors, (4960), 2752 states have call successors, (4960) [2021-11-07 14:44:53,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62879 states to 62879 states and 88610 transitions. [2021-11-07 14:44:53,823 INFO L78 Accepts]: Start accepts. Automaton has 62879 states and 88610 transitions. Word has length 126 [2021-11-07 14:44:53,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:44:53,824 INFO L470 AbstractCegarLoop]: Abstraction has 62879 states and 88610 transitions. [2021-11-07 14:44:53,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 1 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:44:53,824 INFO L276 IsEmpty]: Start isEmpty. Operand 62879 states and 88610 transitions. [2021-11-07 14:44:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-07 14:44:53,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:44:53,840 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:44:53,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 14:44:53,842 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:44:53,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:44:53,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1482483944, now seen corresponding path program 1 times [2021-11-07 14:44:53,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:44:53,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719758862] [2021-11-07 14:44:53,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:44:53,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:44:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-07 14:44:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:44:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:44:54,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:44:54,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719758862] [2021-11-07 14:44:54,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719758862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:44:54,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:44:54,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:44:54,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149410096] [2021-11-07 14:44:54,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:44:54,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:44:54,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:44:54,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:44:54,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:44:54,482 INFO L87 Difference]: Start difference. First operand 62879 states and 88610 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 14:44:56,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:44:58,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:45:04,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:45:13,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:45:13,923 INFO L93 Difference]: Finished difference Result 197277 states and 279238 transitions. [2021-11-07 14:45:13,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:45:13,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2021-11-07 14:45:13,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:45:14,915 INFO L225 Difference]: With dead ends: 197277 [2021-11-07 14:45:14,916 INFO L226 Difference]: Without dead ends: 134482 [2021-11-07 14:45:15,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.95ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:45:15,214 INFO L933 BasicCegarLoop]: 4947 mSDtfsCounter, 4074 mSDsluCounter, 5594 mSDsCounter, 0 mSdLazyCounter, 2694 mSolverCounterSat, 297 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15404.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4103 SdHoareTripleChecker+Valid, 10541 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.40ms SdHoareTripleChecker+Time, 297 IncrementalHoareTripleChecker+Valid, 2694 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16323.75ms IncrementalHoareTripleChecker+Time [2021-11-07 14:45:15,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4103 Valid, 10541 Invalid, 2994 Unknown, 0 Unchecked, 39.40ms Time], IncrementalHoareTripleChecker [297 Valid, 2694 Invalid, 3 Unknown, 0 Unchecked, 16323.75ms Time] [2021-11-07 14:45:15,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134482 states. [2021-11-07 14:45:18,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134482 to 130827. [2021-11-07 14:45:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130827 states, 122496 states have (on average 1.3660364420062696) internal successors, (167334), 122954 states have internal predecessors, (167334), 5568 states have call successors, (5568), 2128 states have call predecessors, (5568), 2752 states have return successors, (12384), 5888 states have call predecessors, (12384), 5568 states have call successors, (12384) [2021-11-07 14:45:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130827 states to 130827 states and 185286 transitions. [2021-11-07 14:45:20,159 INFO L78 Accepts]: Start accepts. Automaton has 130827 states and 185286 transitions. Word has length 167 [2021-11-07 14:45:20,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:45:20,160 INFO L470 AbstractCegarLoop]: Abstraction has 130827 states and 185286 transitions. [2021-11-07 14:45:20,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 3 states have internal predecessors, (162), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 14:45:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 130827 states and 185286 transitions. [2021-11-07 14:45:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-07 14:45:20,172 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:45:20,172 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:45:20,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 14:45:20,173 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting usb_serial_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:45:20,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:45:20,174 INFO L85 PathProgramCache]: Analyzing trace with hash -732853996, now seen corresponding path program 1 times [2021-11-07 14:45:20,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:45:20,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827673473] [2021-11-07 14:45:20,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:45:20,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:45:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:45:20,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:45:20,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:45:20,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827673473] [2021-11-07 14:45:20,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827673473] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:45:20,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:45:20,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 14:45:20,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621321824] [2021-11-07 14:45:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:45:20,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 14:45:20,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:45:20,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 14:45:20,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:45:20,656 INFO L87 Difference]: Start difference. First operand 130827 states and 185286 transitions. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:45:23,491 INFO L93 Difference]: Finished difference Result 198137 states and 280392 transitions. [2021-11-07 14:45:23,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 14:45:23,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-11-07 14:45:23,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:45:23,857 INFO L225 Difference]: With dead ends: 198137 [2021-11-07 14:45:23,858 INFO L226 Difference]: Without dead ends: 67394 [2021-11-07 14:45:24,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.92ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 14:45:24,487 INFO L933 BasicCegarLoop]: 3465 mSDtfsCounter, 3462 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.37ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 151.24ms IncrementalHoareTripleChecker+Time [2021-11-07 14:45:24,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3462 Valid, 3467 Invalid, 4 Unknown, 0 Unchecked, 8.37ms Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 151.24ms Time] [2021-11-07 14:45:24,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67394 states. [2021-11-07 14:45:26,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67394 to 65244. [2021-11-07 14:45:26,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65244 states, 61062 states have (on average 1.3665127247715436) internal successors, (83442), 61296 states have internal predecessors, (83442), 2790 states have call successors, (2790), 1069 states have call predecessors, (2790), 1381 states have return successors, (6198), 2950 states have call predecessors, (6198), 2790 states have call successors, (6198) [2021-11-07 14:45:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65244 states to 65244 states and 92430 transitions. [2021-11-07 14:45:26,740 INFO L78 Accepts]: Start accepts. Automaton has 65244 states and 92430 transitions. Word has length 165 [2021-11-07 14:45:26,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:45:26,752 INFO L470 AbstractCegarLoop]: Abstraction has 65244 states and 92430 transitions. [2021-11-07 14:45:26,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 65244 states and 92430 transitions. [2021-11-07 14:45:26,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-07 14:45:26,769 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:45:26,769 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:45:26,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 14:45:26,770 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:45:26,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:45:26,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1866473330, now seen corresponding path program 1 times [2021-11-07 14:45:26,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:45:26,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794043495] [2021-11-07 14:45:26,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:45:26,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:45:26,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:45:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 14:45:27,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:45:27,154 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794043495] [2021-11-07 14:45:27,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794043495] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:45:27,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:45:27,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 14:45:27,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854583997] [2021-11-07 14:45:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:45:27,156 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 14:45:27,156 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:45:27,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 14:45:27,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 14:45:27,157 INFO L87 Difference]: Start difference. First operand 65244 states and 92430 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:29,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 14:45:31,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:45:31,144 INFO L93 Difference]: Finished difference Result 130098 states and 184338 transitions. [2021-11-07 14:45:31,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 14:45:31,145 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-07 14:45:31,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:45:31,404 INFO L225 Difference]: With dead ends: 130098 [2021-11-07 14:45:31,404 INFO L226 Difference]: Without dead ends: 65255 [2021-11-07 14:45:31,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.69ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:45:31,599 INFO L933 BasicCegarLoop]: 3466 mSDtfsCounter, 7 mSDsluCounter, 6922 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2129.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10388 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.29ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2314.94ms IncrementalHoareTripleChecker+Time [2021-11-07 14:45:31,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 10388 Invalid, 11 Unknown, 0 Unchecked, 8.29ms Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 2314.94ms Time] [2021-11-07 14:45:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65255 states. [2021-11-07 14:45:33,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65255 to 65246. [2021-11-07 14:45:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65246 states, 61064 states have (on average 1.3664352155115944) internal successors, (83440), 61298 states have internal predecessors, (83440), 2790 states have call successors, (2790), 1069 states have call predecessors, (2790), 1381 states have return successors, (6198), 2950 states have call predecessors, (6198), 2790 states have call successors, (6198) [2021-11-07 14:45:33,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65246 states to 65246 states and 92428 transitions. [2021-11-07 14:45:33,675 INFO L78 Accepts]: Start accepts. Automaton has 65246 states and 92428 transitions. Word has length 178 [2021-11-07 14:45:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:45:33,675 INFO L470 AbstractCegarLoop]: Abstraction has 65246 states and 92428 transitions. [2021-11-07 14:45:33,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 65246 states and 92428 transitions. [2021-11-07 14:45:33,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-07 14:45:33,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:45:33,692 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:45:33,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 14:45:33,692 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:45:33,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:45:33,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1973694521, now seen corresponding path program 1 times [2021-11-07 14:45:33,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:45:33,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248983949] [2021-11-07 14:45:33,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:45:33,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:45:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:45:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:45:34,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:45:34,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248983949] [2021-11-07 14:45:34,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248983949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:45:34,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:45:34,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 14:45:34,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585388523] [2021-11-07 14:45:34,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:45:34,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 14:45:34,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:45:34,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 14:45:34,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 14:45:34,172 INFO L87 Difference]: Start difference. First operand 65246 states and 92428 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:36,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:45:36,256 INFO L93 Difference]: Finished difference Result 130181 states and 184410 transitions. [2021-11-07 14:45:36,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 14:45:36,257 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 182 [2021-11-07 14:45:36,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:45:36,541 INFO L225 Difference]: With dead ends: 130181 [2021-11-07 14:45:36,542 INFO L226 Difference]: Without dead ends: 65344 [2021-11-07 14:45:36,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 20.20ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:45:36,780 INFO L933 BasicCegarLoop]: 3451 mSDtfsCounter, 1762 mSDsluCounter, 6168 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 162.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1805 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.52ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 188.79ms IncrementalHoareTripleChecker+Time [2021-11-07 14:45:36,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1805 Valid, 9619 Invalid, 127 Unknown, 0 Unchecked, 9.52ms Time], IncrementalHoareTripleChecker [32 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 188.79ms Time] [2021-11-07 14:45:37,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65344 states. [2021-11-07 14:45:38,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65344 to 65246. [2021-11-07 14:45:38,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65246 states, 61064 states have (on average 1.3653871348093802) internal successors, (83376), 61298 states have internal predecessors, (83376), 2790 states have call successors, (2790), 1069 states have call predecessors, (2790), 1381 states have return successors, (6198), 2950 states have call predecessors, (6198), 2790 states have call successors, (6198) [2021-11-07 14:45:38,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65246 states to 65246 states and 92364 transitions. [2021-11-07 14:45:38,786 INFO L78 Accepts]: Start accepts. Automaton has 65246 states and 92364 transitions. Word has length 182 [2021-11-07 14:45:38,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 14:45:38,787 INFO L470 AbstractCegarLoop]: Abstraction has 65246 states and 92364 transitions. [2021-11-07 14:45:38,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 65246 states and 92364 transitions. [2021-11-07 14:45:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-07 14:45:38,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 14:45:38,804 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 14:45:38,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 14:45:38,804 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [serial_cleanupErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 14:45:38,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 14:45:38,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1093218855, now seen corresponding path program 1 times [2021-11-07 14:45:38,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 14:45:38,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887815068] [2021-11-07 14:45:38,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 14:45:38,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 14:45:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 14:45:39,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-07 14:45:39,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 14:45:39,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887815068] [2021-11-07 14:45:39,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887815068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 14:45:39,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 14:45:39,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 14:45:39,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673150952] [2021-11-07 14:45:39,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 14:45:39,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 14:45:39,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 14:45:39,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 14:45:39,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 14:45:39,313 INFO L87 Difference]: Start difference. First operand 65246 states and 92364 transitions. Second operand has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 14:45:41,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 14:45:41,853 INFO L93 Difference]: Finished difference Result 142160 states and 202742 transitions. [2021-11-07 14:45:41,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 14:45:41,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 30.333333333333332) internal successors, (182), 6 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-11-07 14:45:41,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 14:45:42,372 INFO L225 Difference]: With dead ends: 142160 [2021-11-07 14:45:42,373 INFO L226 Difference]: Without dead ends: 77323 [2021-11-07 14:45:42,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 43.17ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-07 14:45:42,554 INFO L933 BasicCegarLoop]: 4381 mSDtfsCounter, 2213 mSDsluCounter, 13028 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 17409 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.76ms SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 334.52ms IncrementalHoareTripleChecker+Time [2021-11-07 14:45:42,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2252 Valid, 17409 Invalid, 309 Unknown, 0 Unchecked, 15.76ms Time], IncrementalHoareTripleChecker [123 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 334.52ms Time] [2021-11-07 14:45:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77323 states.