/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:06:53,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:06:53,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:06:53,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:06:53,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:06:53,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:06:53,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:06:53,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:06:53,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:06:53,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:06:53,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:06:53,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:06:53,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:06:53,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:06:53,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:06:53,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:06:53,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:06:53,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:06:53,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:06:53,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:06:53,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:06:53,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:06:53,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:06:53,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:06:53,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:06:53,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:06:53,869 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:06:53,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:06:53,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:06:53,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:06:53,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:06:53,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:06:53,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:06:53,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:06:53,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:06:53,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:06:53,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:06:53,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:06:53,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:06:53,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:06:53,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:06:53,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:06:53,916 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:06:53,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:06:53,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:06:53,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:06:53,920 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:06:53,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:06:53,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:06:53,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:06:53,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:06:53,922 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:06:53,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:06:53,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:06:53,923 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:06:53,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:06:53,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:06:53,924 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:06:53,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:06:53,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:06:53,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:06:53,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:06:53,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:06:53,925 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:06:53,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:06:53,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:06:53,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:06:53,926 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:06:54,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:06:54,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:06:54,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:06:54,416 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:06:54,416 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:06:54,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2020-12-22 13:06:54,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa4a3dab/e3711909d2be454fae8f70894db13f15/FLAG6d6477a84 [2020-12-22 13:06:55,539 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:06:55,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2020-12-22 13:06:55,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa4a3dab/e3711909d2be454fae8f70894db13f15/FLAG6d6477a84 [2020-12-22 13:06:56,001 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fa4a3dab/e3711909d2be454fae8f70894db13f15 [2020-12-22 13:06:56,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:06:56,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:06:56,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:06:56,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:06:56,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:06:56,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:06:56" (1/1) ... [2020-12-22 13:06:56,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61083f8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:56, skipping insertion in model container [2020-12-22 13:06:56,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:06:56" (1/1) ... [2020-12-22 13:06:56,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:06:56,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:06:57,162 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2020-12-22 13:06:57,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:06:58,044 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:06:58,193 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i[108030,108043] [2020-12-22 13:06:58,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:06:58,789 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:06:58,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58 WrapperNode [2020-12-22 13:06:58,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:06:58,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:06:58,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:06:58,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:06:58,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:58,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:06:59,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:06:59,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:06:59,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:06:59,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... [2020-12-22 13:06:59,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:06:59,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:06:59,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:06:59,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:06:59,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:06:59,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:06:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2020-12-22 13:06:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2020-12-22 13:06:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2020-12-22 13:06:59,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2020-12-22 13:06:59,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2020-12-22 13:06:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2020-12-22 13:06:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:06:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:06:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:06:59,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-12-22 13:06:59,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-12-22 13:06:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2020-12-22 13:06:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2020-12-22 13:06:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_resume [2020-12-22 13:06:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_resume [2020-12-22 13:06:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_reset_resume [2020-12-22 13:06:59,874 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_reset_resume [2020-12-22 13:06:59,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:06:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:06:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_disconnect [2020-12-22 13:06:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_disconnect [2020-12-22 13:06:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2020-12-22 13:06:59,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2020-12-22 13:06:59,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:06:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:06:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:06:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:06:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:06:59,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 13:06:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:06:59,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2020-12-22 13:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2020-12-22 13:06:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_16 [2020-12-22 13:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_16 [2020-12-22 13:06:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_probe [2020-12-22 13:06:59,877 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_probe [2020-12-22 13:06:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:06:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:06:59,877 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_open [2020-12-22 13:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_open [2020-12-22 13:06:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_irq [2020-12-22 13:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_irq [2020-12-22 13:06:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 13:06:59,878 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_pkt [2020-12-22 13:06:59,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_pkt [2020-12-22 13:06:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:06:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure nexio_read_data [2020-12-22 13:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure nexio_read_data [2020-12-22 13:06:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:06:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:06:59,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:06:59,879 INFO L130 BoogieDeclarations]: Found specification of procedure usbtouch_process_multi [2020-12-22 13:06:59,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtouch_process_multi [2020-12-22 13:07:12,331 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:07:12,331 INFO L299 CfgBuilder]: Removed 685 assume(true) statements. [2020-12-22 13:07:12,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:07:12 BoogieIcfgContainer [2020-12-22 13:07:12,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:07:12,339 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:07:12,339 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:07:12,344 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:07:12,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:06:56" (1/3) ... [2020-12-22 13:07:12,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa82fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:07:12, skipping insertion in model container [2020-12-22 13:07:12,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:06:58" (2/3) ... [2020-12-22 13:07:12,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fa82fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:07:12, skipping insertion in model container [2020-12-22 13:07:12,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:07:12" (3/3) ... [2020-12-22 13:07:12,349 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--input--touchscreen--usbtouchscreen.ko-entry_point.cil.out.i [2020-12-22 13:07:12,357 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:07:12,367 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-12-22 13:07:12,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-22 13:07:12,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:07:12,448 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:07:12,448 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:07:12,448 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:07:12,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:07:12,449 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:07:12,449 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:07:12,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:07:12,501 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states. [2020-12-22 13:07:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 13:07:12,518 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:12,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:07:12,520 INFO L429 AbstractCegarLoop]: === Iteration 1 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:12,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:12,526 INFO L82 PathProgramCache]: Analyzing trace with hash 55747401, now seen corresponding path program 1 times [2020-12-22 13:07:12,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:12,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954497295] [2020-12-22 13:07:12,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:13,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954497295] [2020-12-22 13:07:13,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:13,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:07:13,416 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703390558] [2020-12-22 13:07:13,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:07:13,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:13,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:07:13,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:13,448 INFO L87 Difference]: Start difference. First operand 922 states. Second operand 3 states. [2020-12-22 13:07:13,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:13,686 INFO L93 Difference]: Finished difference Result 1840 states and 2610 transitions. [2020-12-22 13:07:13,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:07:13,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 13:07:13,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:13,726 INFO L225 Difference]: With dead ends: 1840 [2020-12-22 13:07:13,727 INFO L226 Difference]: Without dead ends: 903 [2020-12-22 13:07:13,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:13,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2020-12-22 13:07:13,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 903. [2020-12-22 13:07:13,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 903 states. [2020-12-22 13:07:13,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 903 states to 903 states and 1220 transitions. [2020-12-22 13:07:13,904 INFO L78 Accepts]: Start accepts. Automaton has 903 states and 1220 transitions. Word has length 17 [2020-12-22 13:07:13,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:13,906 INFO L481 AbstractCegarLoop]: Abstraction has 903 states and 1220 transitions. [2020-12-22 13:07:13,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:07:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 903 states and 1220 transitions. [2020-12-22 13:07:13,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 13:07:13,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:13,908 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:07:13,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:07:13,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:13,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:13,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1495593500, now seen corresponding path program 1 times [2020-12-22 13:07:13,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:13,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520492627] [2020-12-22 13:07:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:07:14,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520492627] [2020-12-22 13:07:14,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:14,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:07:14,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13355612] [2020-12-22 13:07:14,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:07:14,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:14,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:07:14,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:14,225 INFO L87 Difference]: Start difference. First operand 903 states and 1220 transitions. Second operand 3 states. [2020-12-22 13:07:16,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:16,524 INFO L93 Difference]: Finished difference Result 2660 states and 3606 transitions. [2020-12-22 13:07:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:07:16,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-22 13:07:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:16,543 INFO L225 Difference]: With dead ends: 2660 [2020-12-22 13:07:16,544 INFO L226 Difference]: Without dead ends: 1768 [2020-12-22 13:07:16,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2020-12-22 13:07:16,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1762. [2020-12-22 13:07:16,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-12-22 13:07:16,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2393 transitions. [2020-12-22 13:07:16,701 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2393 transitions. Word has length 18 [2020-12-22 13:07:16,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:16,702 INFO L481 AbstractCegarLoop]: Abstraction has 1762 states and 2393 transitions. [2020-12-22 13:07:16,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:07:16,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2393 transitions. [2020-12-22 13:07:16,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 13:07:16,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:16,705 INFO L422 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] [2020-12-22 13:07:16,705 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:07:16,706 INFO L429 AbstractCegarLoop]: === Iteration 3 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:16,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:16,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1111524873, now seen corresponding path program 1 times [2020-12-22 13:07:16,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:16,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048504960] [2020-12-22 13:07:16,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:16,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:16,950 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-22 13:07:16,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048504960] [2020-12-22 13:07:16,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:07:16,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:07:16,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218636553] [2020-12-22 13:07:16,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:07:16,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:16,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:07:16,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:16,954 INFO L87 Difference]: Start difference. First operand 1762 states and 2393 transitions. Second operand 3 states. [2020-12-22 13:07:17,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:17,123 INFO L93 Difference]: Finished difference Result 1792 states and 2421 transitions. [2020-12-22 13:07:17,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:07:17,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 13:07:17,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:17,136 INFO L225 Difference]: With dead ends: 1792 [2020-12-22 13:07:17,137 INFO L226 Difference]: Without dead ends: 1777 [2020-12-22 13:07:17,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:07:17,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2020-12-22 13:07:17,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1762. [2020-12-22 13:07:17,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-12-22 13:07:17,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2392 transitions. [2020-12-22 13:07:17,224 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2392 transitions. Word has length 25 [2020-12-22 13:07:17,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:17,224 INFO L481 AbstractCegarLoop]: Abstraction has 1762 states and 2392 transitions. [2020-12-22 13:07:17,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:07:17,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2392 transitions. [2020-12-22 13:07:17,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 13:07:17,227 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:17,227 INFO L422 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] [2020-12-22 13:07:17,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:07:17,227 INFO L429 AbstractCegarLoop]: === Iteration 4 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:17,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:17,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1111584455, now seen corresponding path program 1 times [2020-12-22 13:07:17,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:17,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497959779] [2020-12-22 13:07:17,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:17,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497959779] [2020-12-22 13:07:17,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512226307] [2020-12-22 13:07:17,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:07:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:19,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-22 13:07:19,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:07:20,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:20,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:07:20,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-12-22 13:07:20,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811116248] [2020-12-22 13:07:20,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:07:20,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:20,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:07:20,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:07:20,011 INFO L87 Difference]: Start difference. First operand 1762 states and 2392 transitions. Second operand 6 states. [2020-12-22 13:07:20,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:20,153 INFO L93 Difference]: Finished difference Result 3515 states and 4774 transitions. [2020-12-22 13:07:20,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:07:20,154 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-12-22 13:07:20,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:20,168 INFO L225 Difference]: With dead ends: 3515 [2020-12-22 13:07:20,169 INFO L226 Difference]: Without dead ends: 1763 [2020-12-22 13:07:20,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:07:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2020-12-22 13:07:20,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1763. [2020-12-22 13:07:20,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2020-12-22 13:07:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2393 transitions. [2020-12-22 13:07:20,272 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2393 transitions. Word has length 25 [2020-12-22 13:07:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:20,273 INFO L481 AbstractCegarLoop]: Abstraction has 1763 states and 2393 transitions. [2020-12-22 13:07:20,273 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:07:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2393 transitions. [2020-12-22 13:07:20,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 13:07:20,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:20,279 INFO L422 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] [2020-12-22 13:07:20,479 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:07:20,481 INFO L429 AbstractCegarLoop]: === Iteration 5 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:20,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:20,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1270007142, now seen corresponding path program 2 times [2020-12-22 13:07:20,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:20,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6298097] [2020-12-22 13:07:20,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:20,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6298097] [2020-12-22 13:07:20,888 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981329558] [2020-12-22 13:07:20,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:07:58,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:07:58,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:07:58,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 2799 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:07:58,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:07:58,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:07:58,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:07:58,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2020-12-22 13:07:58,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638355139] [2020-12-22 13:07:58,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:07:58,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:07:58,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:07:58,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:07:58,188 INFO L87 Difference]: Start difference. First operand 1763 states and 2393 transitions. Second operand 3 states. [2020-12-22 13:07:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:07:58,482 INFO L93 Difference]: Finished difference Result 5263 states and 7446 transitions. [2020-12-22 13:07:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:07:58,483 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 13:07:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:07:58,511 INFO L225 Difference]: With dead ends: 5263 [2020-12-22 13:07:58,511 INFO L226 Difference]: Without dead ends: 3512 [2020-12-22 13:07:58,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:07:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3512 states. [2020-12-22 13:07:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3512 to 3494. [2020-12-22 13:07:58,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3494 states. [2020-12-22 13:07:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3494 states to 3494 states and 4898 transitions. [2020-12-22 13:07:58,723 INFO L78 Accepts]: Start accepts. Automaton has 3494 states and 4898 transitions. Word has length 26 [2020-12-22 13:07:58,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:07:58,724 INFO L481 AbstractCegarLoop]: Abstraction has 3494 states and 4898 transitions. [2020-12-22 13:07:58,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:07:58,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3494 states and 4898 transitions. [2020-12-22 13:07:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 13:07:58,725 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:07:58,725 INFO L422 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] [2020-12-22 13:07:58,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:07:58,939 INFO L429 AbstractCegarLoop]: === Iteration 6 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:07:58,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:07:58,939 INFO L82 PathProgramCache]: Analyzing trace with hash -715515458, now seen corresponding path program 1 times [2020-12-22 13:07:58,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:07:58,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193946011] [2020-12-22 13:07:58,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:07:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:07:59,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:07:59,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193946011] [2020-12-22 13:07:59,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743809388] [2020-12-22 13:07:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:08:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:01,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 2813 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 13:08:01,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:08:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:08:01,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:08:01,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-12-22 13:08:01,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800253002] [2020-12-22 13:08:01,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 13:08:01,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:01,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 13:08:01,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:08:01,962 INFO L87 Difference]: Start difference. First operand 3494 states and 4898 transitions. Second operand 8 states. [2020-12-22 13:08:02,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:02,144 INFO L93 Difference]: Finished difference Result 6978 states and 9785 transitions. [2020-12-22 13:08:02,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:08:02,145 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2020-12-22 13:08:02,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:02,178 INFO L225 Difference]: With dead ends: 6978 [2020-12-22 13:08:02,178 INFO L226 Difference]: Without dead ends: 3495 [2020-12-22 13:08:02,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:08:02,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2020-12-22 13:08:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 3495. [2020-12-22 13:08:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3495 states. [2020-12-22 13:08:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 4899 transitions. [2020-12-22 13:08:02,430 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 4899 transitions. Word has length 27 [2020-12-22 13:08:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:02,430 INFO L481 AbstractCegarLoop]: Abstraction has 3495 states and 4899 transitions. [2020-12-22 13:08:02,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 13:08:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 4899 transitions. [2020-12-22 13:08:02,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 13:08:02,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:02,433 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:02,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:08:02,647 INFO L429 AbstractCegarLoop]: === Iteration 7 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:02,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:02,648 INFO L82 PathProgramCache]: Analyzing trace with hash -207471407, now seen corresponding path program 2 times [2020-12-22 13:08:02,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:02,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213030885] [2020-12-22 13:08:02,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:08:03,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213030885] [2020-12-22 13:08:03,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411738513] [2020-12-22 13:08:03,017 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:08:05,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-12-22 13:08:05,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-22 13:08:05,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 2801 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-22 13:08:05,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:08:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:05,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 13:08:05,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2020-12-22 13:08:05,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507765301] [2020-12-22 13:08:05,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:08:05,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:05,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:08:05,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:08:05,682 INFO L87 Difference]: Start difference. First operand 3495 states and 4899 transitions. Second operand 4 states. [2020-12-22 13:08:07,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:07,391 INFO L93 Difference]: Finished difference Result 3511 states and 4912 transitions. [2020-12-22 13:08:07,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:08:07,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2020-12-22 13:08:07,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:07,420 INFO L225 Difference]: With dead ends: 3511 [2020-12-22 13:08:07,421 INFO L226 Difference]: Without dead ends: 3509 [2020-12-22 13:08:07,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-12-22 13:08:07,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3509 states. [2020-12-22 13:08:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3509 to 3493. [2020-12-22 13:08:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3493 states. [2020-12-22 13:08:07,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4897 transitions. [2020-12-22 13:08:07,594 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4897 transitions. Word has length 28 [2020-12-22 13:08:07,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:07,594 INFO L481 AbstractCegarLoop]: Abstraction has 3493 states and 4897 transitions. [2020-12-22 13:08:07,594 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:08:07,594 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4897 transitions. [2020-12-22 13:08:07,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-22 13:08:07,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:07,596 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:07,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:08:07,797 INFO L429 AbstractCegarLoop]: === Iteration 8 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:07,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:07,798 INFO L82 PathProgramCache]: Analyzing trace with hash -2136646031, now seen corresponding path program 1 times [2020-12-22 13:08:07,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:07,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279842299] [2020-12-22 13:08:07,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:08,039 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:08,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279842299] [2020-12-22 13:08:08,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:08,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:08:08,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480321549] [2020-12-22 13:08:08,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:08:08,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:08,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:08:08,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:08,042 INFO L87 Difference]: Start difference. First operand 3493 states and 4897 transitions. Second operand 3 states. [2020-12-22 13:08:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:08,167 INFO L93 Difference]: Finished difference Result 3493 states and 4897 transitions. [2020-12-22 13:08:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:08:08,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2020-12-22 13:08:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:08,194 INFO L225 Difference]: With dead ends: 3493 [2020-12-22 13:08:08,194 INFO L226 Difference]: Without dead ends: 3491 [2020-12-22 13:08:08,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:08,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3491 states. [2020-12-22 13:08:08,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3491 to 3491. [2020-12-22 13:08:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3491 states. [2020-12-22 13:08:08,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4895 transitions. [2020-12-22 13:08:08,380 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4895 transitions. Word has length 29 [2020-12-22 13:08:08,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:08,380 INFO L481 AbstractCegarLoop]: Abstraction has 3491 states and 4895 transitions. [2020-12-22 13:08:08,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:08:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4895 transitions. [2020-12-22 13:08:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 13:08:08,382 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:08,382 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:08,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:08:08,383 INFO L429 AbstractCegarLoop]: === Iteration 9 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:08,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:08,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1811517221, now seen corresponding path program 1 times [2020-12-22 13:08:08,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:08,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892753392] [2020-12-22 13:08:08,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:08,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:08,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892753392] [2020-12-22 13:08:08,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:08,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:08:08,685 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110984517] [2020-12-22 13:08:08,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:08:08,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:08,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:08:08,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:08,687 INFO L87 Difference]: Start difference. First operand 3491 states and 4895 transitions. Second operand 3 states. [2020-12-22 13:08:09,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:09,057 INFO L93 Difference]: Finished difference Result 10410 states and 15208 transitions. [2020-12-22 13:08:09,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:08:09,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2020-12-22 13:08:09,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:09,123 INFO L225 Difference]: With dead ends: 10410 [2020-12-22 13:08:09,123 INFO L226 Difference]: Without dead ends: 6932 [2020-12-22 13:08:09,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2020-12-22 13:08:09,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6897. [2020-12-22 13:08:09,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6897 states. [2020-12-22 13:08:09,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 9983 transitions. [2020-12-22 13:08:09,526 INFO L78 Accepts]: Start accepts. Automaton has 6897 states and 9983 transitions. Word has length 30 [2020-12-22 13:08:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:09,526 INFO L481 AbstractCegarLoop]: Abstraction has 6897 states and 9983 transitions. [2020-12-22 13:08:09,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:08:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6897 states and 9983 transitions. [2020-12-22 13:08:09,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 13:08:09,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:09,528 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:09,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:08:09,528 INFO L429 AbstractCegarLoop]: === Iteration 10 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:09,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:09,529 INFO L82 PathProgramCache]: Analyzing trace with hash -322458693, now seen corresponding path program 1 times [2020-12-22 13:08:09,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:09,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153799128] [2020-12-22 13:08:09,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:09,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:09,758 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:09,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153799128] [2020-12-22 13:08:09,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:09,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:08:09,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017352627] [2020-12-22 13:08:09,760 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:08:09,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:09,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:08:09,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:09,761 INFO L87 Difference]: Start difference. First operand 6897 states and 9983 transitions. Second operand 3 states. [2020-12-22 13:08:10,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:10,080 INFO L93 Difference]: Finished difference Result 6897 states and 9983 transitions. [2020-12-22 13:08:10,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:08:10,080 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-22 13:08:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:10,129 INFO L225 Difference]: With dead ends: 6897 [2020-12-22 13:08:10,129 INFO L226 Difference]: Without dead ends: 6888 [2020-12-22 13:08:10,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:10,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6888 states. [2020-12-22 13:08:10,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6888 to 6888. [2020-12-22 13:08:10,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6888 states. [2020-12-22 13:08:10,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 9971 transitions. [2020-12-22 13:08:10,502 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 9971 transitions. Word has length 31 [2020-12-22 13:08:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:10,503 INFO L481 AbstractCegarLoop]: Abstraction has 6888 states and 9971 transitions. [2020-12-22 13:08:10,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:08:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 9971 transitions. [2020-12-22 13:08:10,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 13:08:10,507 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:10,507 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:08:10,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:08:10,508 INFO L429 AbstractCegarLoop]: === Iteration 11 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:10,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:10,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1093340714, now seen corresponding path program 1 times [2020-12-22 13:08:10,509 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:10,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796711461] [2020-12-22 13:08:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:10,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:10,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796711461] [2020-12-22 13:08:10,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:10,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:08:10,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126842514] [2020-12-22 13:08:10,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:08:10,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:10,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:08:10,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:10,752 INFO L87 Difference]: Start difference. First operand 6888 states and 9971 transitions. Second operand 3 states. [2020-12-22 13:08:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:11,364 INFO L93 Difference]: Finished difference Result 13884 states and 20098 transitions. [2020-12-22 13:08:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:08:11,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 13:08:11,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:11,409 INFO L225 Difference]: With dead ends: 13884 [2020-12-22 13:08:11,410 INFO L226 Difference]: Without dead ends: 7009 [2020-12-22 13:08:11,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:11,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7009 states. [2020-12-22 13:08:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7009 to 6988. [2020-12-22 13:08:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6988 states. [2020-12-22 13:08:11,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6988 states to 6988 states and 10114 transitions. [2020-12-22 13:08:11,813 INFO L78 Accepts]: Start accepts. Automaton has 6988 states and 10114 transitions. Word has length 50 [2020-12-22 13:08:11,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:11,814 INFO L481 AbstractCegarLoop]: Abstraction has 6988 states and 10114 transitions. [2020-12-22 13:08:11,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:08:11,814 INFO L276 IsEmpty]: Start isEmpty. Operand 6988 states and 10114 transitions. [2020-12-22 13:08:11,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 13:08:11,820 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:11,820 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-12-22 13:08:11,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:08:11,821 INFO L429 AbstractCegarLoop]: === Iteration 12 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1905571325, now seen corresponding path program 1 times [2020-12-22 13:08:11,822 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:11,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517243343] [2020-12-22 13:08:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 13:08:12,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517243343] [2020-12-22 13:08:12,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:12,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:08:12,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256848704] [2020-12-22 13:08:12,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:08:12,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:12,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:08:12,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:12,139 INFO L87 Difference]: Start difference. First operand 6988 states and 10114 transitions. Second operand 3 states. [2020-12-22 13:08:15,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:15,037 INFO L93 Difference]: Finished difference Result 20647 states and 29815 transitions. [2020-12-22 13:08:15,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:08:15,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2020-12-22 13:08:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:15,121 INFO L225 Difference]: With dead ends: 20647 [2020-12-22 13:08:15,121 INFO L226 Difference]: Without dead ends: 13672 [2020-12-22 13:08:15,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:08:15,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13672 states. [2020-12-22 13:08:15,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13672 to 13638. [2020-12-22 13:08:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13638 states. [2020-12-22 13:08:15,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13638 states to 13638 states and 19629 transitions. [2020-12-22 13:08:15,948 INFO L78 Accepts]: Start accepts. Automaton has 13638 states and 19629 transitions. Word has length 65 [2020-12-22 13:08:15,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:15,949 INFO L481 AbstractCegarLoop]: Abstraction has 13638 states and 19629 transitions. [2020-12-22 13:08:15,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:08:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 13638 states and 19629 transitions. [2020-12-22 13:08:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 13:08:15,956 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:15,956 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 13:08:15,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 13:08:15,957 INFO L429 AbstractCegarLoop]: === Iteration 13 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:15,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:15,958 INFO L82 PathProgramCache]: Analyzing trace with hash -977879529, now seen corresponding path program 1 times [2020-12-22 13:08:15,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:15,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199339230] [2020-12-22 13:08:15,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:16,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:16,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-12-22 13:08:16,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 13:08:16,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199339230] [2020-12-22 13:08:16,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:16,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:08:16,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681749737] [2020-12-22 13:08:16,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:08:16,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:16,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:08:16,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:08:16,352 INFO L87 Difference]: Start difference. First operand 13638 states and 19629 transitions. Second operand 4 states. [2020-12-22 13:08:20,845 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-22 13:08:29,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:29,795 INFO L93 Difference]: Finished difference Result 38155 states and 54820 transitions. [2020-12-22 13:08:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:08:29,797 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-12-22 13:08:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:29,956 INFO L225 Difference]: With dead ends: 38155 [2020-12-22 13:08:29,956 INFO L226 Difference]: Without dead ends: 24530 [2020-12-22 13:08:30,018 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:08:30,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24530 states. [2020-12-22 13:08:31,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24530 to 22676. [2020-12-22 13:08:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22676 states. [2020-12-22 13:08:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22676 states to 22676 states and 32292 transitions. [2020-12-22 13:08:31,932 INFO L78 Accepts]: Start accepts. Automaton has 22676 states and 32292 transitions. Word has length 83 [2020-12-22 13:08:31,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:31,934 INFO L481 AbstractCegarLoop]: Abstraction has 22676 states and 32292 transitions. [2020-12-22 13:08:31,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:08:31,934 INFO L276 IsEmpty]: Start isEmpty. Operand 22676 states and 32292 transitions. [2020-12-22 13:08:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 13:08:31,943 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:31,943 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 13:08:31,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 13:08:31,944 INFO L429 AbstractCegarLoop]: === Iteration 14 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:31,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:31,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1672700854, now seen corresponding path program 1 times [2020-12-22 13:08:31,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:31,945 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843167915] [2020-12-22 13:08:31,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:32,482 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:08:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-12-22 13:08:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-22 13:08:32,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843167915] [2020-12-22 13:08:32,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:08:32,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:08:32,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962180464] [2020-12-22 13:08:32,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:08:32,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:08:32,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:08:32,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:08:32,550 INFO L87 Difference]: Start difference. First operand 22676 states and 32292 transitions. Second operand 6 states. [2020-12-22 13:08:38,982 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-22 13:08:43,156 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-12-22 13:08:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:08:56,553 INFO L93 Difference]: Finished difference Result 42483 states and 63654 transitions. [2020-12-22 13:08:56,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-22 13:08:56,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-12-22 13:08:56,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:08:56,784 INFO L225 Difference]: With dead ends: 42483 [2020-12-22 13:08:56,785 INFO L226 Difference]: Without dead ends: 42477 [2020-12-22 13:08:56,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-12-22 13:08:56,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42477 states. [2020-12-22 13:08:59,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42477 to 39462. [2020-12-22 13:08:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39462 states. [2020-12-22 13:08:59,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39462 states to 39462 states and 58574 transitions. [2020-12-22 13:08:59,526 INFO L78 Accepts]: Start accepts. Automaton has 39462 states and 58574 transitions. Word has length 84 [2020-12-22 13:08:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:08:59,527 INFO L481 AbstractCegarLoop]: Abstraction has 39462 states and 58574 transitions. [2020-12-22 13:08:59,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:08:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 39462 states and 58574 transitions. [2020-12-22 13:08:59,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 13:08:59,532 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:08:59,532 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 13:08:59,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 13:08:59,532 INFO L429 AbstractCegarLoop]: === Iteration 15 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:08:59,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:08:59,533 INFO L82 PathProgramCache]: Analyzing trace with hash 102306508, now seen corresponding path program 1 times [2020-12-22 13:08:59,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:08:59,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453142360] [2020-12-22 13:08:59,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:08:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:08:59,994 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:08:59,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-12-22 13:09:00,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-12-22 13:09:00,030 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453142360] [2020-12-22 13:09:00,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:09:00,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 13:09:00,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089438181] [2020-12-22 13:09:00,032 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 13:09:00,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:09:00,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 13:09:00,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:09:00,033 INFO L87 Difference]: Start difference. First operand 39462 states and 58574 transitions. Second operand 7 states. [2020-12-22 13:09:03,339 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-22 13:09:03,590 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-22 13:09:03,836 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-22 13:09:11,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:09:11,287 INFO L93 Difference]: Finished difference Result 56507 states and 86863 transitions. [2020-12-22 13:09:11,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 13:09:11,290 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2020-12-22 13:09:11,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:09:11,537 INFO L225 Difference]: With dead ends: 56507 [2020-12-22 13:09:11,537 INFO L226 Difference]: Without dead ends: 42317 [2020-12-22 13:09:11,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-12-22 13:09:11,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42317 states. [2020-12-22 13:09:14,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42317 to 39509. [2020-12-22 13:09:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39509 states. [2020-12-22 13:09:14,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39509 states to 39509 states and 58753 transitions. [2020-12-22 13:09:14,190 INFO L78 Accepts]: Start accepts. Automaton has 39509 states and 58753 transitions. Word has length 84 [2020-12-22 13:09:14,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:09:14,190 INFO L481 AbstractCegarLoop]: Abstraction has 39509 states and 58753 transitions. [2020-12-22 13:09:14,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 13:09:14,191 INFO L276 IsEmpty]: Start isEmpty. Operand 39509 states and 58753 transitions. [2020-12-22 13:09:14,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 13:09:14,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:09:14,201 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 13:09:14,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 13:09:14,202 INFO L429 AbstractCegarLoop]: === Iteration 16 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:09:14,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:09:14,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1012719637, now seen corresponding path program 1 times [2020-12-22 13:09:14,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:09:14,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635222072] [2020-12-22 13:09:14,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:09:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:14,655 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:09:14,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-12-22 13:09:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-22 13:09:14,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635222072] [2020-12-22 13:09:14,955 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390703230] [2020-12-22 13:09:14,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 13:09:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:17,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 3430 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 13:09:17,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 13:09:18,237 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-22 13:09:18,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 13:09:18,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 9 [2020-12-22 13:09:18,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53396823] [2020-12-22 13:09:18,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 13:09:18,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:09:18,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 13:09:18,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-12-22 13:09:18,240 INFO L87 Difference]: Start difference. First operand 39509 states and 58753 transitions. Second operand 9 states. [2020-12-22 13:09:22,807 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-22 13:09:23,194 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-22 13:09:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:09:41,938 INFO L93 Difference]: Finished difference Result 138205 states and 206919 transitions. [2020-12-22 13:09:41,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 13:09:41,940 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-12-22 13:09:41,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:09:43,204 INFO L225 Difference]: With dead ends: 138205 [2020-12-22 13:09:43,204 INFO L226 Difference]: Without dead ends: 98708 [2020-12-22 13:09:43,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-12-22 13:09:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98708 states. [2020-12-22 13:09:48,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98708 to 79374. [2020-12-22 13:09:48,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79374 states. [2020-12-22 13:09:49,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79374 states to 79374 states and 118001 transitions. [2020-12-22 13:09:49,496 INFO L78 Accepts]: Start accepts. Automaton has 79374 states and 118001 transitions. Word has length 94 [2020-12-22 13:09:49,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:09:49,497 INFO L481 AbstractCegarLoop]: Abstraction has 79374 states and 118001 transitions. [2020-12-22 13:09:49,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 13:09:49,497 INFO L276 IsEmpty]: Start isEmpty. Operand 79374 states and 118001 transitions. [2020-12-22 13:09:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 13:09:49,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:09:49,509 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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] [2020-12-22 13:09:49,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2020-12-22 13:09:49,723 INFO L429 AbstractCegarLoop]: === Iteration 17 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:09:49,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:09:49,724 INFO L82 PathProgramCache]: Analyzing trace with hash 680066468, now seen corresponding path program 1 times [2020-12-22 13:09:49,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:09:49,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198016375] [2020-12-22 13:09:49,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:09:50,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:50,308 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:09:50,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-12-22 13:09:50,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:09:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 13:09:50,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198016375] [2020-12-22 13:09:50,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:09:50,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:09:50,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525337108] [2020-12-22 13:09:50,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:09:50,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:09:50,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:09:50,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:09:50,488 INFO L87 Difference]: Start difference. First operand 79374 states and 118001 transitions. Second operand 5 states. [2020-12-22 13:10:04,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:10:04,578 INFO L93 Difference]: Finished difference Result 174469 states and 279620 transitions. [2020-12-22 13:10:04,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:10:04,579 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-12-22 13:10:04,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:10:05,482 INFO L225 Difference]: With dead ends: 174469 [2020-12-22 13:10:05,483 INFO L226 Difference]: Without dead ends: 94977 [2020-12-22 13:10:06,202 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:10:06,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94977 states. [2020-12-22 13:10:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94977 to 79374. [2020-12-22 13:10:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79374 states. [2020-12-22 13:10:11,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79374 states to 79374 states and 117929 transitions. [2020-12-22 13:10:11,687 INFO L78 Accepts]: Start accepts. Automaton has 79374 states and 117929 transitions. Word has length 95 [2020-12-22 13:10:11,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:10:11,688 INFO L481 AbstractCegarLoop]: Abstraction has 79374 states and 117929 transitions. [2020-12-22 13:10:11,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:10:11,688 INFO L276 IsEmpty]: Start isEmpty. Operand 79374 states and 117929 transitions. [2020-12-22 13:10:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 13:10:11,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:10:11,698 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 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] [2020-12-22 13:10:11,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 13:10:11,699 INFO L429 AbstractCegarLoop]: === Iteration 18 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:10:11,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:10:11,700 INFO L82 PathProgramCache]: Analyzing trace with hash 702084096, now seen corresponding path program 1 times [2020-12-22 13:10:11,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:10:11,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956328605] [2020-12-22 13:10:11,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:10:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:10:12,238 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:10:12,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-12-22 13:10:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:10:12,644 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 13:10:12,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956328605] [2020-12-22 13:10:12,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:10:12,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:10:12,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42380342] [2020-12-22 13:10:12,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:10:12,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:10:12,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:10:12,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:10:12,647 INFO L87 Difference]: Start difference. First operand 79374 states and 117929 transitions. Second operand 5 states. [2020-12-22 13:10:27,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:10:27,430 INFO L93 Difference]: Finished difference Result 164626 states and 261330 transitions. [2020-12-22 13:10:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 13:10:27,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2020-12-22 13:10:27,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:10:28,275 INFO L225 Difference]: With dead ends: 164626 [2020-12-22 13:10:28,275 INFO L226 Difference]: Without dead ends: 85278 [2020-12-22 13:10:28,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:10:28,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85278 states. [2020-12-22 13:10:33,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85278 to 79662. [2020-12-22 13:10:33,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79662 states. [2020-12-22 13:10:33,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79662 states to 79662 states and 118253 transitions. [2020-12-22 13:10:33,956 INFO L78 Accepts]: Start accepts. Automaton has 79662 states and 118253 transitions. Word has length 97 [2020-12-22 13:10:33,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:10:33,956 INFO L481 AbstractCegarLoop]: Abstraction has 79662 states and 118253 transitions. [2020-12-22 13:10:33,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:10:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 79662 states and 118253 transitions. [2020-12-22 13:10:33,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 13:10:33,967 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:10:33,968 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2020-12-22 13:10:33,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 13:10:33,968 INFO L429 AbstractCegarLoop]: === Iteration 19 === [##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, usbtouch_probeErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:10:33,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:10:33,969 INFO L82 PathProgramCache]: Analyzing trace with hash -106643466, now seen corresponding path program 1 times [2020-12-22 13:10:33,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:10:33,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723768975] [2020-12-22 13:10:33,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:10:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:10:34,456 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-22 13:10:34,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-12-22 13:10:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:10:34,488 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 13:10:34,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723768975] [2020-12-22 13:10:34,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:10:34,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:10:34,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892670803] [2020-12-22 13:10:34,490 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:10:34,490 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:10:34,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:10:34,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:10:34,491 INFO L87 Difference]: Start difference. First operand 79662 states and 118253 transitions. Second operand 5 states.