/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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:49:40,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:49:40,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:49:40,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:49:40,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:49:40,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:49:40,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:49:40,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:49:40,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:49:40,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:49:40,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:49:40,855 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:49:40,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:49:40,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:49:40,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:49:40,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:49:40,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:49:40,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:49:40,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:49:40,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:49:40,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:49:40,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:49:40,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:49:40,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:49:40,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:49:40,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:49:40,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:49:40,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:49:40,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:49:40,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:49:40,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:49:40,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:49:40,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:49:40,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:49:40,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:49:40,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:49:40,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:49:40,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:49:40,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:49:40,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:49:40,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:49:40,919 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:49:40,954 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:49:40,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:49:40,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:49:40,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:49:40,956 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:49:40,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:49:40,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:49:40,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:49:40,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:49:40,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:49:40,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:49:40,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:49:40,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:49:40,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:49:40,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:49:40,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:49:40,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:49:40,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:49:40,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:49:40,960 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:49:40,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:49:41,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:49:41,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:49:41,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:49:41,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:49:41,378 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:49:41,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:49:41,459 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961bef111/fb7a876644d040eebb0f70ee883219e8/FLAG56c6b0ef5 [2020-12-22 13:49:42,510 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:49:42,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:49:42,562 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961bef111/fb7a876644d040eebb0f70ee883219e8/FLAG56c6b0ef5 [2020-12-22 13:49:42,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/961bef111/fb7a876644d040eebb0f70ee883219e8 [2020-12-22 13:49:42,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:49:42,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:49:42,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:49:42,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:49:42,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:49:42,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:49:42" (1/1) ... [2020-12-22 13:49:42,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6186aa2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:42, skipping insertion in model container [2020-12-22 13:49:42,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:49:42" (1/1) ... [2020-12-22 13:49:42,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:49:43,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:49:45,195 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2020-12-22 13:49:45,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:49:45,273 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:49:45,856 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-validator-v0.8/linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[239738,239751] [2020-12-22 13:49:45,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:49:46,258 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:49:46,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46 WrapperNode [2020-12-22 13:49:46,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:49:46,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:49:46,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:49:46,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:49:46,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:46,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:48,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:49:48,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:49:48,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:49:48,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:49:48,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:48,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:49,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:49,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:51,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:51,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:51,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (1/1) ... [2020-12-22 13:49:52,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:49:52,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:49:52,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:49:52,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:49:52,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (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 13:49:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:49:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:49:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2020-12-22 13:49:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2020-12-22 13:49:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-12-22 13:49:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-12-22 13:49:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2020-12-22 13:49:52,256 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2020-12-22 13:49:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:49:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:49:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2020-12-22 13:49:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2020-12-22 13:49:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2020-12-22 13:49:52,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2020-12-22 13:49:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:49:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2020-12-22 13:49:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2020-12-22 13:49:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:49:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2020-12-22 13:49:52,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2020-12-22 13:49:52,258 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2020-12-22 13:49:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2020-12-22 13:49:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2020-12-22 13:49:52,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2020-12-22 13:49:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:49:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:49:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2020-12-22 13:49:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2020-12-22 13:49:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2020-12-22 13:49:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2020-12-22 13:49:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:49:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2020-12-22 13:49:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2020-12-22 13:49:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:49:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2020-12-22 13:49:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2020-12-22 13:49:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:49:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2020-12-22 13:49:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2020-12-22 13:49:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:49:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2020-12-22 13:49:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2020-12-22 13:49:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:49:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:49:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:49:52,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:49:52,262 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2020-12-22 13:49:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2020-12-22 13:49:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2020-12-22 13:49:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2020-12-22 13:49:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2020-12-22 13:49:52,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2020-12-22 13:49:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:49:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 13:49:52,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:49:52,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:51:01,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:51:01,172 INFO L299 CfgBuilder]: Removed 14858 assume(true) statements. [2020-12-22 13:51:01,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:51:01 BoogieIcfgContainer [2020-12-22 13:51:01,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:51:01,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:51:01,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:51:01,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:51:01,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:49:42" (1/3) ... [2020-12-22 13:51:01,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7c1c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:51:01, skipping insertion in model container [2020-12-22 13:51:01,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:49:46" (2/3) ... [2020-12-22 13:51:01,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7c1c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:51:01, skipping insertion in model container [2020-12-22 13:51:01,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:51:01" (3/3) ... [2020-12-22 13:51:01,197 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_1a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:51:01,205 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:51:01,215 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-22 13:51:01,239 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-22 13:51:01,300 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:51:01,301 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:51:01,301 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:51:01,301 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:51:01,301 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:51:01,301 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:51:01,301 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:51:01,302 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:51:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 11174 states. [2020-12-22 13:51:01,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:51:01,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:01,457 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, 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 13:51:01,457 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:01,464 INFO L82 PathProgramCache]: Analyzing trace with hash -1615285543, now seen corresponding path program 1 times [2020-12-22 13:51:01,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:01,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788276855] [2020-12-22 13:51:01,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:02,137 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 13:51:02,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788276855] [2020-12-22 13:51:02,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:02,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:51:02,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840269885] [2020-12-22 13:51:02,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 13:51:02,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:02,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 13:51:02,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:51:02,180 INFO L87 Difference]: Start difference. First operand 11174 states. Second operand 2 states. [2020-12-22 13:51:02,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:02,664 INFO L93 Difference]: Finished difference Result 22344 states and 32147 transitions. [2020-12-22 13:51:02,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 13:51:02,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 48 [2020-12-22 13:51:02,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:02,763 INFO L225 Difference]: With dead ends: 22344 [2020-12-22 13:51:02,763 INFO L226 Difference]: Without dead ends: 11157 [2020-12-22 13:51:02,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:51:02,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11157 states. [2020-12-22 13:51:03,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11157 to 11157. [2020-12-22 13:51:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11157 states. [2020-12-22 13:51:03,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11157 states to 11157 states and 16003 transitions. [2020-12-22 13:51:03,234 INFO L78 Accepts]: Start accepts. Automaton has 11157 states and 16003 transitions. Word has length 48 [2020-12-22 13:51:03,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:03,234 INFO L481 AbstractCegarLoop]: Abstraction has 11157 states and 16003 transitions. [2020-12-22 13:51:03,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 13:51:03,235 INFO L276 IsEmpty]: Start isEmpty. Operand 11157 states and 16003 transitions. [2020-12-22 13:51:03,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:51:03,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:03,243 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, 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 13:51:03,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:51:03,244 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:03,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:03,246 INFO L82 PathProgramCache]: Analyzing trace with hash -134654241, now seen corresponding path program 1 times [2020-12-22 13:51:03,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:03,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162291574] [2020-12-22 13:51:03,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:03,601 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 13:51:03,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162291574] [2020-12-22 13:51:03,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:03,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:51:03,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932334683] [2020-12-22 13:51:03,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:03,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:03,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:03,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:03,612 INFO L87 Difference]: Start difference. First operand 11157 states and 16003 transitions. Second operand 3 states. [2020-12-22 13:51:13,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:13,068 INFO L93 Difference]: Finished difference Result 33404 states and 48012 transitions. [2020-12-22 13:51:13,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:13,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 13:51:13,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:13,193 INFO L225 Difference]: With dead ends: 33404 [2020-12-22 13:51:13,193 INFO L226 Difference]: Without dead ends: 22275 [2020-12-22 13:51:13,225 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 13:51:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22275 states. [2020-12-22 13:51:13,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22275 to 22275. [2020-12-22 13:51:13,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22275 states. [2020-12-22 13:51:14,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22275 states to 22275 states and 31336 transitions. [2020-12-22 13:51:14,008 INFO L78 Accepts]: Start accepts. Automaton has 22275 states and 31336 transitions. Word has length 48 [2020-12-22 13:51:14,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:14,009 INFO L481 AbstractCegarLoop]: Abstraction has 22275 states and 31336 transitions. [2020-12-22 13:51:14,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:14,009 INFO L276 IsEmpty]: Start isEmpty. Operand 22275 states and 31336 transitions. [2020-12-22 13:51:14,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 13:51:14,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:14,017 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, 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 13:51:14,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:51:14,017 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:14,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:14,019 INFO L82 PathProgramCache]: Analyzing trace with hash 120733418, now seen corresponding path program 1 times [2020-12-22 13:51:14,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:14,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143553096] [2020-12-22 13:51:14,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:14,489 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 13:51:14,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143553096] [2020-12-22 13:51:14,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:14,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:51:14,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843750976] [2020-12-22 13:51:14,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:14,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:14,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:14,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:14,494 INFO L87 Difference]: Start difference. First operand 22275 states and 31336 transitions. Second operand 3 states. [2020-12-22 13:51:19,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:19,676 INFO L93 Difference]: Finished difference Result 66451 states and 93632 transitions. [2020-12-22 13:51:19,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:19,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-22 13:51:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:19,816 INFO L225 Difference]: With dead ends: 66451 [2020-12-22 13:51:19,817 INFO L226 Difference]: Without dead ends: 44204 [2020-12-22 13:51:19,891 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 13:51:19,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44204 states. [2020-12-22 13:51:21,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44204 to 44186. [2020-12-22 13:51:21,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44186 states. [2020-12-22 13:51:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44186 states to 44186 states and 61538 transitions. [2020-12-22 13:51:21,319 INFO L78 Accepts]: Start accepts. Automaton has 44186 states and 61538 transitions. Word has length 49 [2020-12-22 13:51:21,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:21,320 INFO L481 AbstractCegarLoop]: Abstraction has 44186 states and 61538 transitions. [2020-12-22 13:51:21,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:21,320 INFO L276 IsEmpty]: Start isEmpty. Operand 44186 states and 61538 transitions. [2020-12-22 13:51:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 13:51:21,325 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:21,325 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, 1, 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 13:51:21,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:51:21,326 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:21,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:21,326 INFO L82 PathProgramCache]: Analyzing trace with hash -552183735, now seen corresponding path program 1 times [2020-12-22 13:51:21,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:21,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633894041] [2020-12-22 13:51:21,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:21,765 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 13:51:21,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633894041] [2020-12-22 13:51:21,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:21,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:51:21,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657912135] [2020-12-22 13:51:21,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:21,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:21,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:21,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:21,768 INFO L87 Difference]: Start difference. First operand 44186 states and 61538 transitions. Second operand 3 states. [2020-12-22 13:51:22,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:22,688 INFO L93 Difference]: Finished difference Result 44186 states and 61538 transitions. [2020-12-22 13:51:22,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:22,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 13:51:22,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:22,812 INFO L225 Difference]: With dead ends: 44186 [2020-12-22 13:51:22,813 INFO L226 Difference]: Without dead ends: 44184 [2020-12-22 13:51:22,830 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 13:51:22,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44184 states. [2020-12-22 13:51:24,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44184 to 44184. [2020-12-22 13:51:24,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44184 states. [2020-12-22 13:51:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44184 states to 44184 states and 61536 transitions. [2020-12-22 13:51:24,166 INFO L78 Accepts]: Start accepts. Automaton has 44184 states and 61536 transitions. Word has length 50 [2020-12-22 13:51:24,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:24,168 INFO L481 AbstractCegarLoop]: Abstraction has 44184 states and 61536 transitions. [2020-12-22 13:51:24,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 44184 states and 61536 transitions. [2020-12-22 13:51:24,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 13:51:24,172 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:24,172 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, 1, 1, 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 13:51:24,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:51:24,173 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:24,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:24,173 INFO L82 PathProgramCache]: Analyzing trace with hash 62221012, now seen corresponding path program 1 times [2020-12-22 13:51:24,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:24,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256717514] [2020-12-22 13:51:24,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:24,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:24,532 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 13:51:24,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256717514] [2020-12-22 13:51:24,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:24,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:51:24,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152165433] [2020-12-22 13:51:24,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:24,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:24,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:24,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:24,535 INFO L87 Difference]: Start difference. First operand 44184 states and 61536 transitions. Second operand 3 states. [2020-12-22 13:51:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:25,416 INFO L93 Difference]: Finished difference Result 44184 states and 61536 transitions. [2020-12-22 13:51:25,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:25,417 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 13:51:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:25,527 INFO L225 Difference]: With dead ends: 44184 [2020-12-22 13:51:25,527 INFO L226 Difference]: Without dead ends: 38188 [2020-12-22 13:51:25,547 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 13:51:25,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38188 states. [2020-12-22 13:51:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38188 to 38188. [2020-12-22 13:51:26,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38188 states. [2020-12-22 13:51:27,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38188 states to 38188 states and 53497 transitions. [2020-12-22 13:51:27,068 INFO L78 Accepts]: Start accepts. Automaton has 38188 states and 53497 transitions. Word has length 51 [2020-12-22 13:51:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:27,070 INFO L481 AbstractCegarLoop]: Abstraction has 38188 states and 53497 transitions. [2020-12-22 13:51:27,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:27,070 INFO L276 IsEmpty]: Start isEmpty. Operand 38188 states and 53497 transitions. [2020-12-22 13:51:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 13:51:27,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:27,091 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:51:27,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:51:27,091 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1013174417, now seen corresponding path program 1 times [2020-12-22 13:51:27,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:27,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627751939] [2020-12-22 13:51:27,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:51:27,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627751939] [2020-12-22 13:51:27,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:27,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:51:27,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251878895] [2020-12-22 13:51:27,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:27,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:27,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:27,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:27,519 INFO L87 Difference]: Start difference. First operand 38188 states and 53497 transitions. Second operand 3 states. [2020-12-22 13:51:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:29,380 INFO L93 Difference]: Finished difference Result 91891 states and 128734 transitions. [2020-12-22 13:51:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:29,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-22 13:51:29,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:29,600 INFO L225 Difference]: With dead ends: 91891 [2020-12-22 13:51:29,600 INFO L226 Difference]: Without dead ends: 53731 [2020-12-22 13:51:29,687 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 13:51:29,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53731 states. [2020-12-22 13:51:31,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53731 to 53716. [2020-12-22 13:51:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53716 states. [2020-12-22 13:51:31,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53716 states to 53716 states and 75249 transitions. [2020-12-22 13:51:31,500 INFO L78 Accepts]: Start accepts. Automaton has 53716 states and 75249 transitions. Word has length 76 [2020-12-22 13:51:31,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:31,501 INFO L481 AbstractCegarLoop]: Abstraction has 53716 states and 75249 transitions. [2020-12-22 13:51:31,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:31,501 INFO L276 IsEmpty]: Start isEmpty. Operand 53716 states and 75249 transitions. [2020-12-22 13:51:31,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 13:51:31,540 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:31,541 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:51:31,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:51:31,541 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:31,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:31,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2014516997, now seen corresponding path program 1 times [2020-12-22 13:51:31,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:31,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293688378] [2020-12-22 13:51:31,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:31,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:31,933 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 13:51:31,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293688378] [2020-12-22 13:51:31,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:31,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:51:31,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033692487] [2020-12-22 13:51:31,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:51:31,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:31,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:51:31,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:51:31,940 INFO L87 Difference]: Start difference. First operand 53716 states and 75249 transitions. Second operand 4 states. [2020-12-22 13:51:35,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:35,010 INFO L93 Difference]: Finished difference Result 131288 states and 184033 transitions. [2020-12-22 13:51:35,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:51:35,011 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2020-12-22 13:51:35,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:35,232 INFO L225 Difference]: With dead ends: 131288 [2020-12-22 13:51:35,232 INFO L226 Difference]: Without dead ends: 77600 [2020-12-22 13:51:35,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:51:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77600 states. [2020-12-22 13:51:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77600 to 53730. [2020-12-22 13:51:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53730 states. [2020-12-22 13:51:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53730 states to 53730 states and 75263 transitions. [2020-12-22 13:51:37,447 INFO L78 Accepts]: Start accepts. Automaton has 53730 states and 75263 transitions. Word has length 103 [2020-12-22 13:51:37,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:37,447 INFO L481 AbstractCegarLoop]: Abstraction has 53730 states and 75263 transitions. [2020-12-22 13:51:37,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:51:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 53730 states and 75263 transitions. [2020-12-22 13:51:37,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 13:51:37,487 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:37,488 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:51:37,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:51:37,488 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:37,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:37,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1358171202, now seen corresponding path program 1 times [2020-12-22 13:51:37,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:37,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326712122] [2020-12-22 13:51:37,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 13:51:38,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326712122] [2020-12-22 13:51:38,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:38,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:51:38,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550863903] [2020-12-22 13:51:38,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:38,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:38,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:38,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:38,021 INFO L87 Difference]: Start difference. First operand 53730 states and 75263 transitions. Second operand 3 states. [2020-12-22 13:51:42,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:42,041 INFO L93 Difference]: Finished difference Result 123064 states and 172586 transitions. [2020-12-22 13:51:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:42,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-12-22 13:51:42,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:42,243 INFO L225 Difference]: With dead ends: 123064 [2020-12-22 13:51:42,244 INFO L226 Difference]: Without dead ends: 69362 [2020-12-22 13:51:42,359 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 13:51:42,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69362 states. [2020-12-22 13:51:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69362 to 69362. [2020-12-22 13:51:45,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69362 states. [2020-12-22 13:51:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69362 states to 69362 states and 97337 transitions. [2020-12-22 13:51:45,194 INFO L78 Accepts]: Start accepts. Automaton has 69362 states and 97337 transitions. Word has length 107 [2020-12-22 13:51:45,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:45,194 INFO L481 AbstractCegarLoop]: Abstraction has 69362 states and 97337 transitions. [2020-12-22 13:51:45,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:45,194 INFO L276 IsEmpty]: Start isEmpty. Operand 69362 states and 97337 transitions. [2020-12-22 13:51:45,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-12-22 13:51:45,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:45,263 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:51:45,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:51:45,263 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:45,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:45,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2046393895, now seen corresponding path program 1 times [2020-12-22 13:51:45,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:45,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694753206] [2020-12-22 13:51:45,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:45,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-22 13:51:45,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694753206] [2020-12-22 13:51:45,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:45,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:51:45,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673043528] [2020-12-22 13:51:45,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:51:45,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:45,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:51:45,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:51:45,712 INFO L87 Difference]: Start difference. First operand 69362 states and 97337 transitions. Second operand 3 states. [2020-12-22 13:51:49,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:51:49,214 INFO L93 Difference]: Finished difference Result 116765 states and 163699 transitions. [2020-12-22 13:51:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:51:49,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-12-22 13:51:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:51:49,339 INFO L225 Difference]: With dead ends: 116765 [2020-12-22 13:51:49,340 INFO L226 Difference]: Without dead ends: 47429 [2020-12-22 13:51:49,455 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 13:51:49,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47429 states. [2020-12-22 13:51:51,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47429 to 47423. [2020-12-22 13:51:51,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47423 states. [2020-12-22 13:51:51,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47423 states to 47423 states and 66381 transitions. [2020-12-22 13:51:51,572 INFO L78 Accepts]: Start accepts. Automaton has 47423 states and 66381 transitions. Word has length 122 [2020-12-22 13:51:51,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:51:51,573 INFO L481 AbstractCegarLoop]: Abstraction has 47423 states and 66381 transitions. [2020-12-22 13:51:51,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:51:51,573 INFO L276 IsEmpty]: Start isEmpty. Operand 47423 states and 66381 transitions. [2020-12-22 13:51:51,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-22 13:51:51,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:51:51,616 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:51:51,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:51:51,617 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:51:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:51:51,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1883063057, now seen corresponding path program 1 times [2020-12-22 13:51:51,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:51:51,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968606569] [2020-12-22 13:51:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:51:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:51,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-12-22 13:51:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:51:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:51,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:51:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:52,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:51:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:51:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:51:52,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968606569] [2020-12-22 13:51:52,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:51:52,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 13:51:52,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083705364] [2020-12-22 13:51:52,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 13:51:52,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:51:52,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 13:51:52,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 13:51:52,103 INFO L87 Difference]: Start difference. First operand 47423 states and 66381 transitions. Second operand 5 states. [2020-12-22 13:52:40,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:52:40,703 INFO L93 Difference]: Finished difference Result 95648 states and 134287 transitions. [2020-12-22 13:52:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:52:40,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-12-22 13:52:40,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:52:40,821 INFO L225 Difference]: With dead ends: 95648 [2020-12-22 13:52:40,821 INFO L226 Difference]: Without dead ends: 48253 [2020-12-22 13:52:40,916 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:52:40,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48253 states. [2020-12-22 13:52:42,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48253 to 47583. [2020-12-22 13:52:42,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47583 states. [2020-12-22 13:52:42,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47583 states to 47583 states and 66581 transitions. [2020-12-22 13:52:42,738 INFO L78 Accepts]: Start accepts. Automaton has 47583 states and 66581 transitions. Word has length 133 [2020-12-22 13:52:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:52:42,738 INFO L481 AbstractCegarLoop]: Abstraction has 47583 states and 66581 transitions. [2020-12-22 13:52:42,738 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 13:52:42,738 INFO L276 IsEmpty]: Start isEmpty. Operand 47583 states and 66581 transitions. [2020-12-22 13:52:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-12-22 13:52:42,817 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:52:42,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:52:42,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:52:42,817 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:52:42,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:52:42,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1392102491, now seen corresponding path program 1 times [2020-12-22 13:52:42,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:52:42,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965255987] [2020-12-22 13:52:42,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:52:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:52:43,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-12-22 13:52:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:52:43,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:52:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:52:43,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:52:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:52:43,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:52:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:52:43,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:52:43,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965255987] [2020-12-22 13:52:43,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:52:43,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:52:43,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530504332] [2020-12-22 13:52:43,637 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:52:43,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:52:43,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:52:43,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:52:43,638 INFO L87 Difference]: Start difference. First operand 47583 states and 66581 transitions. Second operand 6 states. [2020-12-22 13:52:50,243 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52