/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-commit-tester/m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:24:17,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:24:17,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:24:17,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:24:17,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:24:17,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:24:17,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:24:17,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:24:17,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:24:17,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:24:17,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:24:17,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:24:17,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:24:17,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:24:17,864 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:24:17,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:24:17,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:24:17,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:24:17,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:24:17,881 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:24:17,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:24:17,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:24:17,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:24:17,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:24:17,908 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 12:24:17,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 12:24:17,909 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 12:24:17,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 12:24:17,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 12:24:17,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 12:24:17,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:24:17,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:24:17,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:24:17,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:24:17,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:24:17,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:24:17,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:24:17,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:24:17,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:24:17,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:24:17,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:24:17,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:24:17,974 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:24:17,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:24:17,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:24:17,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:24:17,979 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:24:17,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:24:17,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:24:17,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:24:17,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:24:17,980 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:24:17,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:24:17,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:24:17,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:24:17,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:24:17,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:24:17,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:24:17,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:24:17,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:24:17,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:24:17,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:24:17,983 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:24:17,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:24:17,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:24:17,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:24:17,984 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:24:17,984 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:24:18,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:24:18,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:24:18,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:24:18,437 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:24:18,438 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:24:18,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i [2020-12-22 12:24:18,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2831239bf/20a54263cd7e429eba91223d90ae8e10/FLAG245313226 [2020-12-22 12:24:19,538 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:24:19,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i [2020-12-22 12:24:19,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2831239bf/20a54263cd7e429eba91223d90ae8e10/FLAG245313226 [2020-12-22 12:24:19,900 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2831239bf/20a54263cd7e429eba91223d90ae8e10 [2020-12-22 12:24:19,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:24:19,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:24:19,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:24:19,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:24:19,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:24:19,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:24:19" (1/1) ... [2020-12-22 12:24:19,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d1d22c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:19, skipping insertion in model container [2020-12-22 12:24:19,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:24:19" (1/1) ... [2020-12-22 12:24:19,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:24:20,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:24:22,050 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-commit-tester/m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i[404095,404108] [2020-12-22 12:24:22,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:24:22,291 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:24:22,857 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-commit-tester/m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i[404095,404108] [2020-12-22 12:24:22,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:24:23,081 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:24:23,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23 WrapperNode [2020-12-22 12:24:23,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:24:23,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:24:23,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:24:23,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:24:23,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:23,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:23,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:24:23,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:24:23,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:24:23,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:24:23,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:23,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:23,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:23,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:24,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:24,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:24,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (1/1) ... [2020-12-22 12:24:24,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:24:24,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:24:24,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:24:24,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:24:24,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (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 12:24:24,430 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 12:24:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2020-12-22 12:24:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:24:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:24:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure stb6100_get_freq [2020-12-22 12:24:24,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stb6100_get_freq [2020-12-22 12:24:24,431 INFO L130 BoogieDeclarations]: Found specification of procedure samsung_smt_7020_tuner_set_params [2020-12-22 12:24:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure samsung_smt_7020_tuner_set_params [2020-12-22 12:24:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_dvb_gate_ctrl [2020-12-22 12:24:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_dvb_gate_ctrl [2020-12-22 12:24:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:24:24,432 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 12:24:24,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 12:24:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_dvb_bus_ctrl [2020-12-22 12:24:24,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_dvb_bus_ctrl [2020-12-22 12:24:24,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:24:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:24:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 12:24:24,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 12:24:24,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:24:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure cx8802_dvb_probe [2020-12-22 12:24:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8802_dvb_probe [2020-12-22 12:24:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:24:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:24:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure stb6100_get_bandw [2020-12-22 12:24:24,437 INFO L138 BoogieDeclarations]: Found implementation of procedure stb6100_get_bandw [2020-12-22 12:24:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 12:24:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 12:24:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register [2020-12-22 12:24:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register [2020-12-22 12:24:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:24:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:24:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:25:28,751 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:25:28,752 INFO L299 CfgBuilder]: Removed 2031 assume(true) statements. [2020-12-22 12:25:28,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:25:28 BoogieIcfgContainer [2020-12-22 12:25:28,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:25:28,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:25:28,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:25:28,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:25:28,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:24:19" (1/3) ... [2020-12-22 12:25:28,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c14195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:25:28, skipping insertion in model container [2020-12-22 12:25:28,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:24:23" (2/3) ... [2020-12-22 12:25:28,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c14195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:25:28, skipping insertion in model container [2020-12-22 12:25:28,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:25:28" (3/3) ... [2020-12-22 12:25:28,766 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-media-video-cx88-cx88-dvb-ko--32_7a--d47b389.i [2020-12-22 12:25:28,774 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:25:28,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-22 12:25:28,803 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-22 12:25:28,840 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:25:28,840 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:25:28,840 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:25:28,841 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:25:28,841 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:25:28,841 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:25:28,841 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:25:28,841 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:25:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2243 states. [2020-12-22 12:25:28,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 12:25:28,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:28,896 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:25:28,896 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:28,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:28,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1098694838, now seen corresponding path program 1 times [2020-12-22 12:25:28,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:28,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580993300] [2020-12-22 12:25:28,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:30,108 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 12:25:30,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580993300] [2020-12-22 12:25:30,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:30,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:30,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020010837] [2020-12-22 12:25:30,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:30,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:30,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:30,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:30,133 INFO L87 Difference]: Start difference. First operand 2243 states. Second operand 3 states. [2020-12-22 12:25:32,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:32,697 INFO L93 Difference]: Finished difference Result 6066 states and 8505 transitions. [2020-12-22 12:25:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:32,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 12:25:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:32,750 INFO L225 Difference]: With dead ends: 6066 [2020-12-22 12:25:32,750 INFO L226 Difference]: Without dead ends: 3825 [2020-12-22 12:25:32,768 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 12:25:32,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2020-12-22 12:25:32,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3823. [2020-12-22 12:25:33,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3823 states. [2020-12-22 12:25:33,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3823 states to 3823 states and 5373 transitions. [2020-12-22 12:25:33,024 INFO L78 Accepts]: Start accepts. Automaton has 3823 states and 5373 transitions. Word has length 8 [2020-12-22 12:25:33,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:33,024 INFO L481 AbstractCegarLoop]: Abstraction has 3823 states and 5373 transitions. [2020-12-22 12:25:33,024 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3823 states and 5373 transitions. [2020-12-22 12:25:33,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 12:25:33,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:33,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:25:33,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:25:33,029 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:33,030 INFO L82 PathProgramCache]: Analyzing trace with hash 300198197, now seen corresponding path program 1 times [2020-12-22 12:25:33,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:33,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361421597] [2020-12-22 12:25:33,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:33,757 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 12:25:33,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361421597] [2020-12-22 12:25:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:33,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:33,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504446270] [2020-12-22 12:25:33,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:33,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:33,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:33,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:33,763 INFO L87 Difference]: Start difference. First operand 3823 states and 5373 transitions. Second operand 3 states. [2020-12-22 12:25:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:36,056 INFO L93 Difference]: Finished difference Result 3823 states and 5373 transitions. [2020-12-22 12:25:36,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:36,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 12:25:36,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:36,079 INFO L225 Difference]: With dead ends: 3823 [2020-12-22 12:25:36,079 INFO L226 Difference]: Without dead ends: 3821 [2020-12-22 12:25:36,081 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 12:25:36,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3821 states. [2020-12-22 12:25:36,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3821 to 3821. [2020-12-22 12:25:36,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3821 states. [2020-12-22 12:25:36,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5371 transitions. [2020-12-22 12:25:36,206 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5371 transitions. Word has length 9 [2020-12-22 12:25:36,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:36,206 INFO L481 AbstractCegarLoop]: Abstraction has 3821 states and 5371 transitions. [2020-12-22 12:25:36,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:36,207 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5371 transitions. [2020-12-22 12:25:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-22 12:25:36,207 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:36,207 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:25:36,208 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:25:36,208 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:36,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash 716209332, now seen corresponding path program 1 times [2020-12-22 12:25:36,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:36,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47164298] [2020-12-22 12:25:36,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:36,718 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 12:25:36,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47164298] [2020-12-22 12:25:36,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:36,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:36,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721556432] [2020-12-22 12:25:36,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:36,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:36,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:36,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:36,724 INFO L87 Difference]: Start difference. First operand 3821 states and 5371 transitions. Second operand 3 states. [2020-12-22 12:25:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:39,005 INFO L93 Difference]: Finished difference Result 3821 states and 5371 transitions. [2020-12-22 12:25:39,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:39,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-22 12:25:39,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:39,026 INFO L225 Difference]: With dead ends: 3821 [2020-12-22 12:25:39,026 INFO L226 Difference]: Without dead ends: 3819 [2020-12-22 12:25:39,028 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 12:25:39,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2020-12-22 12:25:39,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3819. [2020-12-22 12:25:39,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3819 states. [2020-12-22 12:25:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3819 states to 3819 states and 5369 transitions. [2020-12-22 12:25:39,190 INFO L78 Accepts]: Start accepts. Automaton has 3819 states and 5369 transitions. Word has length 10 [2020-12-22 12:25:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:39,190 INFO L481 AbstractCegarLoop]: Abstraction has 3819 states and 5369 transitions. [2020-12-22 12:25:39,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 3819 states and 5369 transitions. [2020-12-22 12:25:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-22 12:25:39,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:39,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:25:39,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:25:39,192 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:39,193 INFO L82 PathProgramCache]: Analyzing trace with hash 727652639, now seen corresponding path program 1 times [2020-12-22 12:25:39,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:39,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146198451] [2020-12-22 12:25:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:39,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:39,709 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 12:25:39,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146198451] [2020-12-22 12:25:39,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:39,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:39,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939817940] [2020-12-22 12:25:39,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:39,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:39,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:39,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:39,714 INFO L87 Difference]: Start difference. First operand 3819 states and 5369 transitions. Second operand 3 states. [2020-12-22 12:25:42,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:42,056 INFO L93 Difference]: Finished difference Result 3819 states and 5369 transitions. [2020-12-22 12:25:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:42,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-22 12:25:42,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:42,079 INFO L225 Difference]: With dead ends: 3819 [2020-12-22 12:25:42,079 INFO L226 Difference]: Without dead ends: 3817 [2020-12-22 12:25:42,082 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 12:25:42,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2020-12-22 12:25:42,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3817. [2020-12-22 12:25:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3817 states. [2020-12-22 12:25:42,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 5367 transitions. [2020-12-22 12:25:42,261 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 5367 transitions. Word has length 11 [2020-12-22 12:25:42,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:42,261 INFO L481 AbstractCegarLoop]: Abstraction has 3817 states and 5367 transitions. [2020-12-22 12:25:42,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:42,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 5367 transitions. [2020-12-22 12:25:42,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-22 12:25:42,262 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:42,262 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:25:42,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:25:42,262 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:42,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:42,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1082395166, now seen corresponding path program 1 times [2020-12-22 12:25:42,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:42,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407245924] [2020-12-22 12:25:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:42,769 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 12:25:42,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407245924] [2020-12-22 12:25:42,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:42,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:42,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381597267] [2020-12-22 12:25:42,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:42,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:42,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:42,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:42,773 INFO L87 Difference]: Start difference. First operand 3817 states and 5367 transitions. Second operand 3 states. [2020-12-22 12:25:45,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:45,027 INFO L93 Difference]: Finished difference Result 3817 states and 5367 transitions. [2020-12-22 12:25:45,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:45,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-22 12:25:45,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:45,087 INFO L225 Difference]: With dead ends: 3817 [2020-12-22 12:25:45,087 INFO L226 Difference]: Without dead ends: 3808 [2020-12-22 12:25:45,089 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 12:25:45,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2020-12-22 12:25:45,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 3808. [2020-12-22 12:25:45,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3808 states. [2020-12-22 12:25:45,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 5356 transitions. [2020-12-22 12:25:45,255 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 5356 transitions. Word has length 12 [2020-12-22 12:25:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:45,255 INFO L481 AbstractCegarLoop]: Abstraction has 3808 states and 5356 transitions. [2020-12-22 12:25:45,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:45,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 5356 transitions. [2020-12-22 12:25:45,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 12:25:45,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:45,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:45,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:25:45,274 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:45,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:45,275 INFO L82 PathProgramCache]: Analyzing trace with hash -313198796, now seen corresponding path program 1 times [2020-12-22 12:25:45,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:45,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484680744] [2020-12-22 12:25:45,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:45,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:46,071 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 12:25:46,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484680744] [2020-12-22 12:25:46,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:46,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:25:46,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639846288] [2020-12-22 12:25:46,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:25:46,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:46,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:25:46,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:25:46,083 INFO L87 Difference]: Start difference. First operand 3808 states and 5356 transitions. Second operand 4 states. [2020-12-22 12:25:46,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:46,325 INFO L93 Difference]: Finished difference Result 7626 states and 10763 transitions. [2020-12-22 12:25:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 12:25:46,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 100 [2020-12-22 12:25:46,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:46,346 INFO L225 Difference]: With dead ends: 7626 [2020-12-22 12:25:46,347 INFO L226 Difference]: Without dead ends: 3824 [2020-12-22 12:25:46,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 12:25:46,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2020-12-22 12:25:46,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 3815. [2020-12-22 12:25:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3815 states. [2020-12-22 12:25:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3815 states to 3815 states and 5363 transitions. [2020-12-22 12:25:46,522 INFO L78 Accepts]: Start accepts. Automaton has 3815 states and 5363 transitions. Word has length 100 [2020-12-22 12:25:46,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:46,522 INFO L481 AbstractCegarLoop]: Abstraction has 3815 states and 5363 transitions. [2020-12-22 12:25:46,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:25:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3815 states and 5363 transitions. [2020-12-22 12:25:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 12:25:46,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:46,527 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:46,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:25:46,527 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:46,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:46,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1121739757, now seen corresponding path program 1 times [2020-12-22 12:25:46,528 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:46,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646370029] [2020-12-22 12:25:46,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:47,281 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 12:25:47,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646370029] [2020-12-22 12:25:47,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:47,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:47,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772417349] [2020-12-22 12:25:47,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:47,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:47,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:47,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:47,284 INFO L87 Difference]: Start difference. First operand 3815 states and 5363 transitions. Second operand 3 states. [2020-12-22 12:25:47,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:47,450 INFO L93 Difference]: Finished difference Result 7626 states and 10764 transitions. [2020-12-22 12:25:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:47,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 12:25:47,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:47,491 INFO L225 Difference]: With dead ends: 7626 [2020-12-22 12:25:47,491 INFO L226 Difference]: Without dead ends: 3817 [2020-12-22 12:25:47,504 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 12:25:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2020-12-22 12:25:47,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 3817. [2020-12-22 12:25:47,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3817 states. [2020-12-22 12:25:47,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3817 states to 3817 states and 5365 transitions. [2020-12-22 12:25:47,663 INFO L78 Accepts]: Start accepts. Automaton has 3817 states and 5365 transitions. Word has length 102 [2020-12-22 12:25:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:47,667 INFO L481 AbstractCegarLoop]: Abstraction has 3817 states and 5365 transitions. [2020-12-22 12:25:47,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3817 states and 5365 transitions. [2020-12-22 12:25:47,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 12:25:47,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:47,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:25:47,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 12:25:47,673 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:47,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:47,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1898794957, now seen corresponding path program 1 times [2020-12-22 12:25:47,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:47,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982947149] [2020-12-22 12:25:47,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:48,309 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 12:25:48,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982947149] [2020-12-22 12:25:48,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:48,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:25:48,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183608763] [2020-12-22 12:25:48,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:48,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:48,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:48,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:48,313 INFO L87 Difference]: Start difference. First operand 3817 states and 5365 transitions. Second operand 3 states. [2020-12-22 12:25:50,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:50,666 INFO L93 Difference]: Finished difference Result 5776 states and 8123 transitions. [2020-12-22 12:25:50,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:50,667 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-12-22 12:25:50,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:50,689 INFO L225 Difference]: With dead ends: 5776 [2020-12-22 12:25:50,690 INFO L226 Difference]: Without dead ends: 3807 [2020-12-22 12:25:50,697 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 12:25:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3807 states. [2020-12-22 12:25:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3807 to 3804. [2020-12-22 12:25:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3804 states. [2020-12-22 12:25:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5333 transitions. [2020-12-22 12:25:51,008 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5333 transitions. Word has length 104 [2020-12-22 12:25:51,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:51,012 INFO L481 AbstractCegarLoop]: Abstraction has 3804 states and 5333 transitions. [2020-12-22 12:25:51,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5333 transitions. [2020-12-22 12:25:51,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:25:51,032 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:51,032 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:25:51,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 12:25:51,033 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:51,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:51,034 INFO L82 PathProgramCache]: Analyzing trace with hash -872773719, now seen corresponding path program 1 times [2020-12-22 12:25:51,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:51,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742491358] [2020-12-22 12:25:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:51,730 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:25:51,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742491358] [2020-12-22 12:25:51,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:51,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:25:51,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779760027] [2020-12-22 12:25:51,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:25:51,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:51,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:25:51,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:25:51,739 INFO L87 Difference]: Start difference. First operand 3804 states and 5333 transitions. Second operand 6 states. [2020-12-22 12:25:52,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:52,209 INFO L93 Difference]: Finished difference Result 7704 states and 10798 transitions. [2020-12-22 12:25:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 12:25:52,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-12-22 12:25:52,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:52,221 INFO L225 Difference]: With dead ends: 7704 [2020-12-22 12:25:52,222 INFO L226 Difference]: Without dead ends: 3906 [2020-12-22 12:25:52,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-22 12:25:52,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2020-12-22 12:25:52,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3896. [2020-12-22 12:25:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states. [2020-12-22 12:25:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5452 transitions. [2020-12-22 12:25:52,395 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5452 transitions. Word has length 167 [2020-12-22 12:25:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:52,395 INFO L481 AbstractCegarLoop]: Abstraction has 3896 states and 5452 transitions. [2020-12-22 12:25:52,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:25:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5452 transitions. [2020-12-22 12:25:52,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:25:52,406 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:52,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:25:52,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 12:25:52,407 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:52,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:52,408 INFO L82 PathProgramCache]: Analyzing trace with hash 272078887, now seen corresponding path program 1 times [2020-12-22 12:25:52,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:52,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635437860] [2020-12-22 12:25:52,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:54,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:55,187 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-12-22 12:25:55,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635437860] [2020-12-22 12:25:55,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:55,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:25:55,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152507153] [2020-12-22 12:25:55,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:25:55,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:55,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:25:55,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:25:55,189 INFO L87 Difference]: Start difference. First operand 3896 states and 5452 transitions. Second operand 3 states. [2020-12-22 12:25:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:25:55,409 INFO L93 Difference]: Finished difference Result 7786 states and 10935 transitions. [2020-12-22 12:25:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:25:55,410 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-12-22 12:25:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:25:55,421 INFO L225 Difference]: With dead ends: 7786 [2020-12-22 12:25:55,422 INFO L226 Difference]: Without dead ends: 3896 [2020-12-22 12:25:55,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 12:25:55,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3896 states. [2020-12-22 12:25:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3896 to 3896. [2020-12-22 12:25:55,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3896 states. [2020-12-22 12:25:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 5438 transitions. [2020-12-22 12:25:55,603 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 5438 transitions. Word has length 167 [2020-12-22 12:25:55,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:25:55,603 INFO L481 AbstractCegarLoop]: Abstraction has 3896 states and 5438 transitions. [2020-12-22 12:25:55,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:25:55,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 5438 transitions. [2020-12-22 12:25:55,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:25:55,613 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:25:55,614 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:25:55,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 12:25:55,614 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:25:55,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:25:55,615 INFO L82 PathProgramCache]: Analyzing trace with hash 40847271, now seen corresponding path program 1 times [2020-12-22 12:25:55,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:25:55,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860822856] [2020-12-22 12:25:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:25:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:25:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-12-22 12:25:57,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860822856] [2020-12-22 12:25:57,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:25:57,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:25:57,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968452998] [2020-12-22 12:25:57,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:25:57,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:25:57,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:25:57,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:25:57,841 INFO L87 Difference]: Start difference. First operand 3896 states and 5438 transitions. Second operand 5 states. [2020-12-22 12:26:06,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:06,290 INFO L93 Difference]: Finished difference Result 10622 states and 14687 transitions. [2020-12-22 12:26:06,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 12:26:06,291 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-12-22 12:26:06,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:06,310 INFO L225 Difference]: With dead ends: 10622 [2020-12-22 12:26:06,310 INFO L226 Difference]: Without dead ends: 6732 [2020-12-22 12:26:06,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 12:26:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2020-12-22 12:26:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 3902. [2020-12-22 12:26:06,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3902 states. [2020-12-22 12:26:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3902 states to 3902 states and 5444 transitions. [2020-12-22 12:26:06,541 INFO L78 Accepts]: Start accepts. Automaton has 3902 states and 5444 transitions. Word has length 167 [2020-12-22 12:26:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:06,542 INFO L481 AbstractCegarLoop]: Abstraction has 3902 states and 5444 transitions. [2020-12-22 12:26:06,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:26:06,542 INFO L276 IsEmpty]: Start isEmpty. Operand 3902 states and 5444 transitions. [2020-12-22 12:26:06,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:26:06,552 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:06,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:06,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 12:26:06,553 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:06,553 INFO L82 PathProgramCache]: Analyzing trace with hash 843084459, now seen corresponding path program 1 times [2020-12-22 12:26:06,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:06,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168423800] [2020-12-22 12:26:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:07,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:08,088 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-12-22 12:26:08,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168423800] [2020-12-22 12:26:08,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:08,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:26:08,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721739719] [2020-12-22 12:26:08,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:26:08,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:08,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:26:08,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:26:08,091 INFO L87 Difference]: Start difference. First operand 3902 states and 5444 transitions. Second operand 5 states. [2020-12-22 12:26:17,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:17,690 INFO L93 Difference]: Finished difference Result 10408 states and 14429 transitions. [2020-12-22 12:26:17,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 12:26:17,691 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-12-22 12:26:17,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:17,709 INFO L225 Difference]: With dead ends: 10408 [2020-12-22 12:26:17,709 INFO L226 Difference]: Without dead ends: 6512 [2020-12-22 12:26:17,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 12:26:17,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2020-12-22 12:26:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 3908. [2020-12-22 12:26:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3908 states. [2020-12-22 12:26:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5450 transitions. [2020-12-22 12:26:17,963 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5450 transitions. Word has length 167 [2020-12-22 12:26:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:17,963 INFO L481 AbstractCegarLoop]: Abstraction has 3908 states and 5450 transitions. [2020-12-22 12:26:17,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:26:17,964 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5450 transitions. [2020-12-22 12:26:17,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:26:17,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:17,974 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:17,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 12:26:17,975 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:17,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:17,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2112787157, now seen corresponding path program 1 times [2020-12-22 12:26:17,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:17,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571914336] [2020-12-22 12:26:17,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 12:26:19,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571914336] [2020-12-22 12:26:19,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:19,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:26:19,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14363901] [2020-12-22 12:26:19,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:26:19,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:19,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:26:19,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:26:19,350 INFO L87 Difference]: Start difference. First operand 3908 states and 5450 transitions. Second operand 3 states. [2020-12-22 12:26:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:19,619 INFO L93 Difference]: Finished difference Result 7868 states and 11004 transitions. [2020-12-22 12:26:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:26:19,620 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 167 [2020-12-22 12:26:19,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:19,631 INFO L225 Difference]: With dead ends: 7868 [2020-12-22 12:26:19,632 INFO L226 Difference]: Without dead ends: 3966 [2020-12-22 12:26:19,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 12:26:19,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2020-12-22 12:26:19,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3920. [2020-12-22 12:26:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3920 states. [2020-12-22 12:26:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3920 states to 3920 states and 5468 transitions. [2020-12-22 12:26:19,872 INFO L78 Accepts]: Start accepts. Automaton has 3920 states and 5468 transitions. Word has length 167 [2020-12-22 12:26:19,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:19,872 INFO L481 AbstractCegarLoop]: Abstraction has 3920 states and 5468 transitions. [2020-12-22 12:26:19,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:26:19,873 INFO L276 IsEmpty]: Start isEmpty. Operand 3920 states and 5468 transitions. [2020-12-22 12:26:19,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:26:19,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:19,884 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:19,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 12:26:19,884 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:19,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:19,885 INFO L82 PathProgramCache]: Analyzing trace with hash 2065098663, now seen corresponding path program 1 times [2020-12-22 12:26:19,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:19,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39495282] [2020-12-22 12:26:19,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:20,541 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-22 12:26:20,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39495282] [2020-12-22 12:26:20,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:20,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 12:26:20,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004727126] [2020-12-22 12:26:20,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 12:26:20,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:20,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 12:26:20,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:26:20,544 INFO L87 Difference]: Start difference. First operand 3920 states and 5468 transitions. Second operand 4 states. [2020-12-22 12:26:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:20,870 INFO L93 Difference]: Finished difference Result 7886 states and 11028 transitions. [2020-12-22 12:26:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 12:26:20,871 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 167 [2020-12-22 12:26:20,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:20,885 INFO L225 Difference]: With dead ends: 7886 [2020-12-22 12:26:20,886 INFO L226 Difference]: Without dead ends: 3970 [2020-12-22 12:26:20,899 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-22 12:26:20,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3970 states. [2020-12-22 12:26:21,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3970 to 3922. [2020-12-22 12:26:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3922 states. [2020-12-22 12:26:21,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5468 transitions. [2020-12-22 12:26:21,129 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5468 transitions. Word has length 167 [2020-12-22 12:26:21,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:21,129 INFO L481 AbstractCegarLoop]: Abstraction has 3922 states and 5468 transitions. [2020-12-22 12:26:21,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 12:26:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5468 transitions. [2020-12-22 12:26:21,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:26:21,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:21,141 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:21,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 12:26:21,142 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:21,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:21,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1604291499, now seen corresponding path program 1 times [2020-12-22 12:26:21,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:21,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637977891] [2020-12-22 12:26:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:22,287 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 12:26:22,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637977891] [2020-12-22 12:26:22,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:22,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:26:22,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790918016] [2020-12-22 12:26:22,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:26:22,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:22,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:26:22,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:26:22,289 INFO L87 Difference]: Start difference. First operand 3922 states and 5468 transitions. Second operand 5 states. [2020-12-22 12:26:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:22,803 INFO L93 Difference]: Finished difference Result 7862 states and 10974 transitions. [2020-12-22 12:26:22,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 12:26:22,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-12-22 12:26:22,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:22,817 INFO L225 Difference]: With dead ends: 7862 [2020-12-22 12:26:22,818 INFO L226 Difference]: Without dead ends: 3946 [2020-12-22 12:26:22,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 12:26:22,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3946 states. [2020-12-22 12:26:23,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3928. [2020-12-22 12:26:23,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3928 states. [2020-12-22 12:26:23,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 5474 transitions. [2020-12-22 12:26:23,108 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 5474 transitions. Word has length 167 [2020-12-22 12:26:23,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:23,108 INFO L481 AbstractCegarLoop]: Abstraction has 3928 states and 5474 transitions. [2020-12-22 12:26:23,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:26:23,108 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 5474 transitions. [2020-12-22 12:26:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-12-22 12:26:23,121 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:23,121 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:23,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 12:26:23,122 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:23,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:23,122 INFO L82 PathProgramCache]: Analyzing trace with hash -782218007, now seen corresponding path program 1 times [2020-12-22 12:26:23,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:23,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676529226] [2020-12-22 12:26:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:28,787 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 12:26:28,788 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676529226] [2020-12-22 12:26:28,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:28,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:26:28,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575350037] [2020-12-22 12:26:28,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:26:28,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:28,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:26:28,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:26:28,792 INFO L87 Difference]: Start difference. First operand 3928 states and 5474 transitions. Second operand 6 states. [2020-12-22 12:26:37,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:37,297 INFO L93 Difference]: Finished difference Result 7900 states and 11033 transitions. [2020-12-22 12:26:37,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 12:26:37,300 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-12-22 12:26:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:37,313 INFO L225 Difference]: With dead ends: 7900 [2020-12-22 12:26:37,314 INFO L226 Difference]: Without dead ends: 3978 [2020-12-22 12:26:37,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:26:37,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3978 states. [2020-12-22 12:26:37,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3978 to 3966. [2020-12-22 12:26:37,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3966 states. [2020-12-22 12:26:37,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 5528 transitions. [2020-12-22 12:26:37,539 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 5528 transitions. Word has length 167 [2020-12-22 12:26:37,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:37,540 INFO L481 AbstractCegarLoop]: Abstraction has 3966 states and 5528 transitions. [2020-12-22 12:26:37,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:26:37,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 5528 transitions. [2020-12-22 12:26:37,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-12-22 12:26:37,550 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:37,550 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:37,551 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 12:26:37,551 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:37,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:37,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2011196537, now seen corresponding path program 1 times [2020-12-22 12:26:37,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:37,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909841223] [2020-12-22 12:26:37,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-22 12:26:38,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909841223] [2020-12-22 12:26:38,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:38,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:26:38,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848746023] [2020-12-22 12:26:38,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:26:38,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:38,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:26:38,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:26:38,801 INFO L87 Difference]: Start difference. First operand 3966 states and 5528 transitions. Second operand 6 states. [2020-12-22 12:26:47,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:26:47,774 INFO L93 Difference]: Finished difference Result 10450 states and 14443 transitions. [2020-12-22 12:26:47,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 12:26:47,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-12-22 12:26:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:26:47,793 INFO L225 Difference]: With dead ends: 10450 [2020-12-22 12:26:47,793 INFO L226 Difference]: Without dead ends: 6490 [2020-12-22 12:26:47,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-22 12:26:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6490 states. [2020-12-22 12:26:47,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6490 to 3978. [2020-12-22 12:26:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3978 states. [2020-12-22 12:26:48,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5540 transitions. [2020-12-22 12:26:48,000 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5540 transitions. Word has length 171 [2020-12-22 12:26:48,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:26:48,000 INFO L481 AbstractCegarLoop]: Abstraction has 3978 states and 5540 transitions. [2020-12-22 12:26:48,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:26:48,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5540 transitions. [2020-12-22 12:26:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-12-22 12:26:48,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:26:48,011 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:26:48,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 12:26:48,011 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:26:48,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:26:48,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1662674549, now seen corresponding path program 1 times [2020-12-22 12:26:48,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:26:48,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160664290] [2020-12-22 12:26:48,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:26:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:26:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 12:26:52,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160664290] [2020-12-22 12:26:52,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:26:52,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:26:52,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210526634] [2020-12-22 12:26:52,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:26:52,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:26:52,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:26:52,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:26:52,662 INFO L87 Difference]: Start difference. First operand 3978 states and 5540 transitions. Second operand 5 states. [2020-12-22 12:27:11,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:27:11,460 INFO L93 Difference]: Finished difference Result 7970 states and 11119 transitions. [2020-12-22 12:27:11,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 12:27:11,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-12-22 12:27:11,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:27:11,474 INFO L225 Difference]: With dead ends: 7970 [2020-12-22 12:27:11,474 INFO L226 Difference]: Without dead ends: 3998 [2020-12-22 12:27:11,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:27:11,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2020-12-22 12:27:11,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3978. [2020-12-22 12:27:11,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3978 states. [2020-12-22 12:27:11,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 5540 transitions. [2020-12-22 12:27:11,712 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 5540 transitions. Word has length 171 [2020-12-22 12:27:11,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:27:11,712 INFO L481 AbstractCegarLoop]: Abstraction has 3978 states and 5540 transitions. [2020-12-22 12:27:11,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:27:11,713 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 5540 transitions. [2020-12-22 12:27:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-12-22 12:27:11,721 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:27:11,721 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:27:11,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 12:27:11,722 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:27:11,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:27:11,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1018721759, now seen corresponding path program 1 times [2020-12-22 12:27:11,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:27:11,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93060953] [2020-12-22 12:27:11,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:27:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:27:15,203 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 12:27:15,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93060953] [2020-12-22 12:27:15,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:27:15,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:27:15,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423340623] [2020-12-22 12:27:15,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:27:15,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:27:15,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:27:15,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:27:15,205 INFO L87 Difference]: Start difference. First operand 3978 states and 5540 transitions. Second operand 6 states. [2020-12-22 12:27:34,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:27:34,588 INFO L93 Difference]: Finished difference Result 7970 states and 11121 transitions. [2020-12-22 12:27:34,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 12:27:34,589 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-12-22 12:27:34,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:27:34,601 INFO L225 Difference]: With dead ends: 7970 [2020-12-22 12:27:34,601 INFO L226 Difference]: Without dead ends: 3998 [2020-12-22 12:27:34,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:27:34,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3998 states. [2020-12-22 12:27:34,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3998 to 3982. [2020-12-22 12:27:34,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3982 states. [2020-12-22 12:27:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 5544 transitions. [2020-12-22 12:27:34,843 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 5544 transitions. Word has length 181 [2020-12-22 12:27:34,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:27:34,844 INFO L481 AbstractCegarLoop]: Abstraction has 3982 states and 5544 transitions. [2020-12-22 12:27:34,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:27:34,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 5544 transitions. [2020-12-22 12:27:34,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-12-22 12:27:34,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:27:34,853 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:27:34,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 12:27:34,853 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:27:34,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:27:34,854 INFO L82 PathProgramCache]: Analyzing trace with hash 235858145, now seen corresponding path program 1 times [2020-12-22 12:27:34,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:27:34,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157148355] [2020-12-22 12:27:34,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:27:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:27:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-12-22 12:27:35,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157148355] [2020-12-22 12:27:35,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:27:35,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:27:35,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084731428] [2020-12-22 12:27:35,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:27:35,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:27:35,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:27:35,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:27:35,999 INFO L87 Difference]: Start difference. First operand 3982 states and 5544 transitions. Second operand 6 states. [2020-12-22 12:27:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:27:45,943 INFO L93 Difference]: Finished difference Result 10398 states and 14363 transitions. [2020-12-22 12:27:45,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 12:27:45,945 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-12-22 12:27:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:27:45,963 INFO L225 Difference]: With dead ends: 10398 [2020-12-22 12:27:45,963 INFO L226 Difference]: Without dead ends: 6422 [2020-12-22 12:27:45,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:27:45,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6422 states. [2020-12-22 12:27:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6422 to 3994. [2020-12-22 12:27:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3994 states. [2020-12-22 12:27:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3994 states to 3994 states and 5556 transitions. [2020-12-22 12:27:46,257 INFO L78 Accepts]: Start accepts. Automaton has 3994 states and 5556 transitions. Word has length 185 [2020-12-22 12:27:46,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:27:46,257 INFO L481 AbstractCegarLoop]: Abstraction has 3994 states and 5556 transitions. [2020-12-22 12:27:46,257 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:27:46,258 INFO L276 IsEmpty]: Start isEmpty. Operand 3994 states and 5556 transitions. [2020-12-22 12:27:46,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-12-22 12:27:46,266 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:27:46,266 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-22 12:27:46,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 12:27:46,266 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_dvb_bus_ctrlErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:27:46,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:27:46,267 INFO L82 PathProgramCache]: Analyzing trace with hash -2057204575, now seen corresponding path program 1 times [2020-12-22 12:27:46,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:27:46,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191958489] [2020-12-22 12:27:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:27:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:27:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-22 12:27:48,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191958489] [2020-12-22 12:27:48,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:27:48,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:27:48,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453322661] [2020-12-22 12:27:48,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:27:48,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:27:48,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:27:48,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:27:48,929 INFO L87 Difference]: Start difference. First operand 3994 states and 5556 transitions. Second operand 5 states.