/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:34:42,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:34:42,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:34:42,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:34:42,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:34:42,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:34:42,841 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:34:42,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:34:42,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:34:42,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:34:42,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:34:42,846 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:34:42,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:34:42,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:34:42,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:34:42,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:34:42,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:34:42,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:34:42,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:34:42,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:34:42,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:34:42,854 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:34:42,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:34:42,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:34:42,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:34:42,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:34:42,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:34:42,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:34:42,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:34:42,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:34:42,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:34:42,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:34:42,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:34:42,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:34:42,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:34:42,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:34:42,863 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:34:42,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:34:42,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:34:42,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:34:42,865 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:34:42,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:34:42,888 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:34:42,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:34:42,889 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:34:42,889 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:34:42,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:34:42,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:34:42,890 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:34:42,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:34:42,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:34:42,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:34:42,891 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:34:42,891 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:34:42,891 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:34:42,892 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:34:42,892 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:34:42,892 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:34:42,892 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:34:42,892 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:34:42,892 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:34:42,893 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:34:42,893 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:34:42,893 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:42,893 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:34:42,893 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:34:42,894 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:34:42,895 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:34:42,895 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:34:42,896 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:34:43,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:34:43,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:34:43,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:34:43,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:34:43,137 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:34:43,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c [2022-01-11 05:34:43,201 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c89a7782/3a5af9d7ae92481980a39fa6a652e5d7/FLAGeb85eb53a [2022-01-11 05:34:43,680 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:34:43,680 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c [2022-01-11 05:34:43,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c89a7782/3a5af9d7ae92481980a39fa6a652e5d7/FLAGeb85eb53a [2022-01-11 05:34:43,992 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c89a7782/3a5af9d7ae92481980a39fa6a652e5d7 [2022-01-11 05:34:43,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:34:43,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:34:43,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:43,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:34:44,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:34:44,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:43" (1/1) ... [2022-01-11 05:34:44,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b268ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44, skipping insertion in model container [2022-01-11 05:34:44,008 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:34:43" (1/1) ... [2022-01-11 05:34:44,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:34:44,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:44,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c[40412,40425] [2022-01-11 05:34:44,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:44,508 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:34:44,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:34:44,577 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c[40412,40425] [2022-01-11 05:34:44,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:44,613 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:34:44,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec3_product01.cil.c[40412,40425] [2022-01-11 05:34:44,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:34:44,715 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:34:44,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44 WrapperNode [2022-01-11 05:34:44,715 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:34:44,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:44,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:34:44,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:34:44,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:44,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:44,999 INFO L137 Inliner]: procedures = 88, calls = 334, calls flagged for inlining = 187, calls inlined = 553, statements flattened = 19287 [2022-01-11 05:34:44,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:34:45,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:34:45,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:34:45,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:34:45,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:34:45,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:34:45,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:34:45,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:34:45,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (1/1) ... [2022-01-11 05:34:45,493 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:34:45,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:34:45,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:34:45,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:34:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:34:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:34:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:34:45,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:34:45,909 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:34:45,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:34:53,645 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:34:53,701 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:34:53,701 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:34:53,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:53 BoogieIcfgContainer [2022-01-11 05:34:53,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:34:53,711 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:34:53,711 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:34:53,712 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:34:53,715 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:53" (1/1) ... [2022-01-11 05:34:55,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:55 BasicIcfg [2022-01-11 05:34:55,017 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:34:55,020 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:34:55,020 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:34:55,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:34:55,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:34:43" (1/4) ... [2022-01-11 05:34:55,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f6cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:55, skipping insertion in model container [2022-01-11 05:34:55,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:34:44" (2/4) ... [2022-01-11 05:34:55,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f6cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:34:55, skipping insertion in model container [2022-01-11 05:34:55,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:34:53" (3/4) ... [2022-01-11 05:34:55,024 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47f6cc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:34:55, skipping insertion in model container [2022-01-11 05:34:55,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:34:55" (4/4) ... [2022-01-11 05:34:55,025 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product01.cil.cTransformedIcfg [2022-01-11 05:34:55,030 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:34:55,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-01-11 05:34:55,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:34:55,095 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:34:55,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-01-11 05:34:55,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 5733 states, 5722 states have (on average 1.8839566585110101) internal successors, (10780), 5732 states have internal predecessors, (10780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-11 05:34:55,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:55,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:55,307 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:34:55,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:55,314 INFO L85 PathProgramCache]: Analyzing trace with hash -173812457, now seen corresponding path program 1 times [2022-01-11 05:34:55,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:55,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100993614] [2022-01-11 05:34:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:55,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:55,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:55,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:55,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100993614] [2022-01-11 05:34:55,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100993614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:55,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:55,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:55,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562918044] [2022-01-11 05:34:55,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:55,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:55,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:55,864 INFO L87 Difference]: Start difference. First operand has 5733 states, 5722 states have (on average 1.8839566585110101) internal successors, (10780), 5732 states have internal predecessors, (10780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:57,511 INFO L93 Difference]: Finished difference Result 14511 states and 27290 transitions. [2022-01-11 05:34:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:57,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-01-11 05:34:57,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:57,576 INFO L225 Difference]: With dead ends: 14511 [2022-01-11 05:34:57,576 INFO L226 Difference]: Without dead ends: 9662 [2022-01-11 05:34:57,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:57,596 INFO L933 BasicCegarLoop]: 17590 mSDtfsCounter, 9313 mSDsluCounter, 8111 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9313 SdHoareTripleChecker+Valid, 25701 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:57,597 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9313 Valid, 25701 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [224 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 05:34:57,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9662 states. [2022-01-11 05:34:57,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9662 to 9606. [2022-01-11 05:34:57,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9606 states, 9596 states have (on average 1.861817423926636) internal successors, (17866), 9605 states have internal predecessors, (17866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:58,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9606 states to 9606 states and 17866 transitions. [2022-01-11 05:34:58,098 INFO L78 Accepts]: Start accepts. Automaton has 9606 states and 17866 transitions. Word has length 46 [2022-01-11 05:34:58,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:58,099 INFO L470 AbstractCegarLoop]: Abstraction has 9606 states and 17866 transitions. [2022-01-11 05:34:58,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:58,100 INFO L276 IsEmpty]: Start isEmpty. Operand 9606 states and 17866 transitions. [2022-01-11 05:34:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 05:34:58,102 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:58,102 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:58,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:34:58,103 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:34:58,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:58,104 INFO L85 PathProgramCache]: Analyzing trace with hash -152012858, now seen corresponding path program 1 times [2022-01-11 05:34:58,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:58,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998918853] [2022-01-11 05:34:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:58,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:58,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:58,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998918853] [2022-01-11 05:34:58,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998918853] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:58,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:58,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:58,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095376130] [2022-01-11 05:34:58,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:58,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:58,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:58,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:58,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:58,246 INFO L87 Difference]: Start difference. First operand 9606 states and 17866 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:58,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:34:58,736 INFO L93 Difference]: Finished difference Result 18689 states and 34938 transitions. [2022-01-11 05:34:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:34:58,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-11 05:34:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:34:58,813 INFO L225 Difference]: With dead ends: 18689 [2022-01-11 05:34:58,814 INFO L226 Difference]: Without dead ends: 14122 [2022-01-11 05:34:58,829 INFO L932 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 [2022-01-11 05:34:58,831 INFO L933 BasicCegarLoop]: 12567 mSDtfsCounter, 10347 mSDsluCounter, 8451 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10347 SdHoareTripleChecker+Valid, 21018 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:34:58,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10347 Valid, 21018 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:34:58,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2022-01-11 05:34:59,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14094. [2022-01-11 05:34:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14094 states, 14084 states have (on average 1.867722238000568) internal successors, (26305), 14093 states have internal predecessors, (26305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:59,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14094 states to 14094 states and 26305 transitions. [2022-01-11 05:34:59,348 INFO L78 Accepts]: Start accepts. Automaton has 14094 states and 26305 transitions. Word has length 47 [2022-01-11 05:34:59,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:34:59,349 INFO L470 AbstractCegarLoop]: Abstraction has 14094 states and 26305 transitions. [2022-01-11 05:34:59,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:34:59,353 INFO L276 IsEmpty]: Start isEmpty. Operand 14094 states and 26305 transitions. [2022-01-11 05:34:59,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 05:34:59,361 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:34:59,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:34:59,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:34:59,361 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:34:59,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:34:59,362 INFO L85 PathProgramCache]: Analyzing trace with hash 735490823, now seen corresponding path program 1 times [2022-01-11 05:34:59,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:34:59,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297177125] [2022-01-11 05:34:59,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:34:59,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:34:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:34:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:34:59,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:34:59,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297177125] [2022-01-11 05:34:59,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297177125] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:34:59,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:34:59,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:34:59,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755489362] [2022-01-11 05:34:59,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:34:59,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:34:59,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:34:59,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:34:59,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:34:59,491 INFO L87 Difference]: Start difference. First operand 14094 states and 26305 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:00,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:00,087 INFO L93 Difference]: Finished difference Result 40021 states and 74796 transitions. [2022-01-11 05:35:00,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:00,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-11 05:35:00,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:00,181 INFO L225 Difference]: With dead ends: 40021 [2022-01-11 05:35:00,182 INFO L226 Difference]: Without dead ends: 26969 [2022-01-11 05:35:00,211 INFO L932 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 [2022-01-11 05:35:00,215 INFO L933 BasicCegarLoop]: 10647 mSDtfsCounter, 9537 mSDsluCounter, 10369 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9537 SdHoareTripleChecker+Valid, 21016 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:00,216 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9537 Valid, 21016 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26969 states. [2022-01-11 05:35:00,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26969 to 26636. [2022-01-11 05:35:01,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26636 states, 26626 states have (on average 1.8702020581386614) internal successors, (49796), 26635 states have internal predecessors, (49796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26636 states to 26636 states and 49796 transitions. [2022-01-11 05:35:01,077 INFO L78 Accepts]: Start accepts. Automaton has 26636 states and 49796 transitions. Word has length 47 [2022-01-11 05:35:01,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:01,079 INFO L470 AbstractCegarLoop]: Abstraction has 26636 states and 49796 transitions. [2022-01-11 05:35:01,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand 26636 states and 49796 transitions. [2022-01-11 05:35:01,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-11 05:35:01,082 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:01,083 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:01,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:35:01,083 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:01,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:01,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1916265490, now seen corresponding path program 1 times [2022-01-11 05:35:01,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:01,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228127364] [2022-01-11 05:35:01,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:01,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:01,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:01,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228127364] [2022-01-11 05:35:01,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228127364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:01,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:01,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:35:01,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020377692] [2022-01-11 05:35:01,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:01,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:35:01,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:01,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:35:01,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:35:01,207 INFO L87 Difference]: Start difference. First operand 26636 states and 49796 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:02,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:02,736 INFO L93 Difference]: Finished difference Result 106235 states and 198592 transitions. [2022-01-11 05:35:02,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:35:02,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-01-11 05:35:02,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:03,033 INFO L225 Difference]: With dead ends: 106235 [2022-01-11 05:35:03,033 INFO L226 Difference]: Without dead ends: 79626 [2022-01-11 05:35:03,113 INFO L932 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 [2022-01-11 05:35:03,119 INFO L933 BasicCegarLoop]: 20751 mSDtfsCounter, 30979 mSDsluCounter, 31156 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30979 SdHoareTripleChecker+Valid, 51907 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:03,120 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30979 Valid, 51907 Invalid, 77 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:03,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79626 states. [2022-01-11 05:35:04,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79626 to 26656. [2022-01-11 05:35:04,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26656 states, 26646 states have (on average 1.8695489003978083) internal successors, (49816), 26655 states have internal predecessors, (49816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:04,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26656 states to 26656 states and 49816 transitions. [2022-01-11 05:35:04,510 INFO L78 Accepts]: Start accepts. Automaton has 26656 states and 49816 transitions. Word has length 47 [2022-01-11 05:35:04,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:04,511 INFO L470 AbstractCegarLoop]: Abstraction has 26656 states and 49816 transitions. [2022-01-11 05:35:04,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 26656 states and 49816 transitions. [2022-01-11 05:35:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-11 05:35:04,513 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:04,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:04,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:35:04,514 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:04,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:04,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1926519794, now seen corresponding path program 1 times [2022-01-11 05:35:04,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:04,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103456382] [2022-01-11 05:35:04,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:04,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:04,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:04,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103456382] [2022-01-11 05:35:04,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103456382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:04,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:04,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:04,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082526910] [2022-01-11 05:35:04,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:04,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:04,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:04,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:04,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:04,585 INFO L87 Difference]: Start difference. First operand 26656 states and 49816 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:05,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:05,391 INFO L93 Difference]: Finished difference Result 53161 states and 99348 transitions. [2022-01-11 05:35:05,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:05,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-11 05:35:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:05,462 INFO L225 Difference]: With dead ends: 53161 [2022-01-11 05:35:05,462 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:05,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:05,495 INFO L933 BasicCegarLoop]: 10337 mSDtfsCounter, 10329 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10329 SdHoareTripleChecker+Valid, 10345 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:05,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10329 Valid, 10345 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:05,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.8688796680497926) internal successors, (49544), 26519 states have internal predecessors, (49544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49544 transitions. [2022-01-11 05:35:06,305 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49544 transitions. Word has length 48 [2022-01-11 05:35:06,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:06,307 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49544 transitions. [2022-01-11 05:35:06,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49544 transitions. [2022-01-11 05:35:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-11 05:35:06,310 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:06,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:06,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:35:06,311 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:06,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:06,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1665277398, now seen corresponding path program 1 times [2022-01-11 05:35:06,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:06,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058875461] [2022-01-11 05:35:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:06,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:06,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:06,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:06,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058875461] [2022-01-11 05:35:06,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058875461] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:06,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:06,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:06,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505495315] [2022-01-11 05:35:06,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:06,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:06,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:06,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:06,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:06,462 INFO L87 Difference]: Start difference. First operand 26520 states and 49544 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:07,324 INFO L93 Difference]: Finished difference Result 53018 states and 99059 transitions. [2022-01-11 05:35:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-01-11 05:35:07,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:07,386 INFO L225 Difference]: With dead ends: 53018 [2022-01-11 05:35:07,386 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:07,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:07,414 INFO L933 BasicCegarLoop]: 10323 mSDtfsCounter, 20653 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20653 SdHoareTripleChecker+Valid, 10351 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:07,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20653 Valid, 10351 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:07,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:08,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.868728781591852) internal successors, (49540), 26519 states have internal predecessors, (49540), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:08,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49540 transitions. [2022-01-11 05:35:08,140 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49540 transitions. Word has length 50 [2022-01-11 05:35:08,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:08,140 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49540 transitions. [2022-01-11 05:35:08,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 8 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:08,141 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49540 transitions. [2022-01-11 05:35:08,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:35:08,143 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:08,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:08,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:35:08,143 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:08,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:08,144 INFO L85 PathProgramCache]: Analyzing trace with hash 757538921, now seen corresponding path program 1 times [2022-01-11 05:35:08,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:08,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291349343] [2022-01-11 05:35:08,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:08,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:08,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:08,230 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:08,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291349343] [2022-01-11 05:35:08,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291349343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:08,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:08,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:08,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444675966] [2022-01-11 05:35:08,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:08,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:08,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:08,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:08,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:08,232 INFO L87 Difference]: Start difference. First operand 26520 states and 49540 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:09,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:09,065 INFO L93 Difference]: Finished difference Result 53012 states and 99041 transitions. [2022-01-11 05:35:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:35:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:35:09,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:09,128 INFO L225 Difference]: With dead ends: 53012 [2022-01-11 05:35:09,129 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:09,164 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:09,165 INFO L933 BasicCegarLoop]: 10305 mSDtfsCounter, 20626 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20626 SdHoareTripleChecker+Valid, 10348 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:09,165 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20626 Valid, 10348 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:09,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:09,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:09,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.8685778951339118) internal successors, (49536), 26519 states have internal predecessors, (49536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:09,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49536 transitions. [2022-01-11 05:35:09,826 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49536 transitions. Word has length 51 [2022-01-11 05:35:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:09,826 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49536 transitions. [2022-01-11 05:35:09,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49536 transitions. [2022-01-11 05:35:09,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:35:09,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:09,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:09,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:35:09,828 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:09,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:09,829 INFO L85 PathProgramCache]: Analyzing trace with hash -784506177, now seen corresponding path program 1 times [2022-01-11 05:35:09,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:09,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447623789] [2022-01-11 05:35:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:09,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:09,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:09,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:09,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447623789] [2022-01-11 05:35:09,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447623789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:09,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:09,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:35:09,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232724734] [2022-01-11 05:35:09,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:09,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:35:09,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:09,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:35:09,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:35:09,905 INFO L87 Difference]: Start difference. First operand 26520 states and 49536 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:10,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:10,616 INFO L93 Difference]: Finished difference Result 53012 states and 99034 transitions. [2022-01-11 05:35:10,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:10,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-11 05:35:10,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:10,666 INFO L225 Difference]: With dead ends: 53012 [2022-01-11 05:35:10,666 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:10,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:35:10,702 INFO L933 BasicCegarLoop]: 10305 mSDtfsCounter, 30933 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30933 SdHoareTripleChecker+Valid, 10348 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:10,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30933 Valid, 10348 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:35:10,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:11,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.8684270086759713) internal successors, (49532), 26519 states have internal predecessors, (49532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49532 transitions. [2022-01-11 05:35:11,453 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49532 transitions. Word has length 52 [2022-01-11 05:35:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:11,454 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49532 transitions. [2022-01-11 05:35:11,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49532 transitions. [2022-01-11 05:35:11,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-11 05:35:11,456 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:11,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:11,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:35:11,457 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:11,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:11,457 INFO L85 PathProgramCache]: Analyzing trace with hash 333707062, now seen corresponding path program 1 times [2022-01-11 05:35:11,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:11,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113363189] [2022-01-11 05:35:11,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:11,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:11,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:11,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:11,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113363189] [2022-01-11 05:35:11,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113363189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:11,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:11,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-11 05:35:11,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752571866] [2022-01-11 05:35:11,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:11,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:35:11,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:11,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:35:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:35:11,537 INFO L87 Difference]: Start difference. First operand 26520 states and 49532 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:12,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:12,595 INFO L93 Difference]: Finished difference Result 53012 states and 99027 transitions. [2022-01-11 05:35:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-11 05:35:12,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2022-01-11 05:35:12,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:12,632 INFO L225 Difference]: With dead ends: 53012 [2022-01-11 05:35:12,632 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:12,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:35:12,653 INFO L933 BasicCegarLoop]: 10305 mSDtfsCounter, 30926 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30926 SdHoareTripleChecker+Valid, 10348 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:12,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30926 Valid, 10348 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:12,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:13,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.8682761222180309) internal successors, (49528), 26519 states have internal predecessors, (49528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49528 transitions. [2022-01-11 05:35:13,499 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49528 transitions. Word has length 53 [2022-01-11 05:35:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:13,500 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49528 transitions. [2022-01-11 05:35:13,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:13,500 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49528 transitions. [2022-01-11 05:35:13,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:35:13,501 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:13,502 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:13,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:35:13,502 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:13,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:13,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1979417172, now seen corresponding path program 1 times [2022-01-11 05:35:13,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:13,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877667891] [2022-01-11 05:35:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:13,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:13,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:13,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:13,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877667891] [2022-01-11 05:35:13,601 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877667891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:13,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:13,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:35:13,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188454986] [2022-01-11 05:35:13,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:13,602 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:35:13,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:13,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:35:13,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:13,603 INFO L87 Difference]: Start difference. First operand 26520 states and 49528 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:14,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:14,422 INFO L93 Difference]: Finished difference Result 53012 states and 99020 transitions. [2022-01-11 05:35:14,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-11 05:35:14,423 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-01-11 05:35:14,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:14,464 INFO L225 Difference]: With dead ends: 53012 [2022-01-11 05:35:14,464 INFO L226 Difference]: Without dead ends: 26520 [2022-01-11 05:35:14,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:35:14,479 INFO L933 BasicCegarLoop]: 10305 mSDtfsCounter, 41228 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41228 SdHoareTripleChecker+Valid, 10348 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:14,479 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41228 Valid, 10348 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:35:14,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26520 states. [2022-01-11 05:35:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26520 to 26520. [2022-01-11 05:35:15,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26520 states, 26510 states have (on average 1.8681252357600906) internal successors, (49524), 26519 states have internal predecessors, (49524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26520 states to 26520 states and 49524 transitions. [2022-01-11 05:35:15,264 INFO L78 Accepts]: Start accepts. Automaton has 26520 states and 49524 transitions. Word has length 54 [2022-01-11 05:35:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:15,264 INFO L470 AbstractCegarLoop]: Abstraction has 26520 states and 49524 transitions. [2022-01-11 05:35:15,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 8 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 26520 states and 49524 transitions. [2022-01-11 05:35:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:35:15,266 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:15,266 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:15,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:35:15,266 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:15,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:15,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1005146627, now seen corresponding path program 1 times [2022-01-11 05:35:15,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:15,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975912308] [2022-01-11 05:35:15,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:15,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:15,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:15,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:15,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:15,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975912308] [2022-01-11 05:35:15,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975912308] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:15,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:15,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:15,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865688661] [2022-01-11 05:35:15,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:15,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:15,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:15,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:15,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:15,338 INFO L87 Difference]: Start difference. First operand 26520 states and 49524 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:20,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:20,162 INFO L93 Difference]: Finished difference Result 173772 states and 324382 transitions. [2022-01-11 05:35:20,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:35:20,163 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-11 05:35:20,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:20,576 INFO L225 Difference]: With dead ends: 173772 [2022-01-11 05:35:20,577 INFO L226 Difference]: Without dead ends: 148174 [2022-01-11 05:35:20,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:35:20,626 INFO L933 BasicCegarLoop]: 21071 mSDtfsCounter, 69951 mSDsluCounter, 55970 mSDsCounter, 0 mSdLazyCounter, 1233 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69951 SdHoareTripleChecker+Valid, 77041 SdHoareTripleChecker+Invalid, 1484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 1233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:20,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69951 Valid, 77041 Invalid, 1484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [251 Valid, 1233 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-01-11 05:35:20,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148174 states. [2022-01-11 05:35:22,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148174 to 50056. [2022-01-11 05:35:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50056 states, 50046 states have (on average 1.8675018982536067) internal successors, (93461), 50055 states have internal predecessors, (93461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:22,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50056 states to 50056 states and 93461 transitions. [2022-01-11 05:35:22,690 INFO L78 Accepts]: Start accepts. Automaton has 50056 states and 93461 transitions. Word has length 55 [2022-01-11 05:35:22,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:22,691 INFO L470 AbstractCegarLoop]: Abstraction has 50056 states and 93461 transitions. [2022-01-11 05:35:22,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:22,691 INFO L276 IsEmpty]: Start isEmpty. Operand 50056 states and 93461 transitions. [2022-01-11 05:35:22,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:35:22,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:22,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:22,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:35:22,693 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:22,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:22,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1695824950, now seen corresponding path program 1 times [2022-01-11 05:35:22,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:22,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186186238] [2022-01-11 05:35:22,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:22,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:22,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:22,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:22,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186186238] [2022-01-11 05:35:22,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186186238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:22,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:22,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:35:22,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024542132] [2022-01-11 05:35:22,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:22,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:35:22,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:22,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:35:22,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:35:22,781 INFO L87 Difference]: Start difference. First operand 50056 states and 93461 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:24,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:24,648 INFO L93 Difference]: Finished difference Result 100462 states and 187273 transitions. [2022-01-11 05:35:24,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-11 05:35:24,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:35:24,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:24,737 INFO L225 Difference]: With dead ends: 100462 [2022-01-11 05:35:24,737 INFO L226 Difference]: Without dead ends: 50482 [2022-01-11 05:35:24,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:35:24,772 INFO L933 BasicCegarLoop]: 16154 mSDtfsCounter, 30092 mSDsluCounter, 26004 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30092 SdHoareTripleChecker+Valid, 42158 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:24,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30092 Valid, 42158 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:35:24,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50482 states. [2022-01-11 05:35:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50482 to 49303. [2022-01-11 05:35:26,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49303 states, 49293 states have (on average 1.8717870691578926) internal successors, (92266), 49302 states have internal predecessors, (92266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:26,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49303 states to 49303 states and 92266 transitions. [2022-01-11 05:35:26,468 INFO L78 Accepts]: Start accepts. Automaton has 49303 states and 92266 transitions. Word has length 56 [2022-01-11 05:35:26,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:26,468 INFO L470 AbstractCegarLoop]: Abstraction has 49303 states and 92266 transitions. [2022-01-11 05:35:26,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:26,468 INFO L276 IsEmpty]: Start isEmpty. Operand 49303 states and 92266 transitions. [2022-01-11 05:35:26,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:35:26,469 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:26,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:26,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:35:26,470 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:26,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:26,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1026392628, now seen corresponding path program 1 times [2022-01-11 05:35:26,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:26,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104237842] [2022-01-11 05:35:26,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:26,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:26,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:26,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:26,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:26,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104237842] [2022-01-11 05:35:26,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104237842] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:26,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:26,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:26,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375601290] [2022-01-11 05:35:26,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:26,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:26,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:26,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:26,518 INFO L87 Difference]: Start difference. First operand 49303 states and 92266 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:30,041 INFO L93 Difference]: Finished difference Result 146393 states and 274134 transitions. [2022-01-11 05:35:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:35:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:30,216 INFO L225 Difference]: With dead ends: 146393 [2022-01-11 05:35:30,216 INFO L226 Difference]: Without dead ends: 97135 [2022-01-11 05:35:30,253 INFO L932 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 [2022-01-11 05:35:30,253 INFO L933 BasicCegarLoop]: 12459 mSDtfsCounter, 9805 mSDsluCounter, 10045 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9805 SdHoareTripleChecker+Valid, 22504 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:30,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9805 Valid, 22504 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:35:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97135 states. [2022-01-11 05:35:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97135 to 49675. [2022-01-11 05:35:32,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49675 states, 49665 states have (on average 1.8686398872445384) internal successors, (92806), 49674 states have internal predecessors, (92806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:32,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49675 states to 49675 states and 92806 transitions. [2022-01-11 05:35:32,400 INFO L78 Accepts]: Start accepts. Automaton has 49675 states and 92806 transitions. Word has length 56 [2022-01-11 05:35:32,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:35:32,400 INFO L470 AbstractCegarLoop]: Abstraction has 49675 states and 92806 transitions. [2022-01-11 05:35:32,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:32,400 INFO L276 IsEmpty]: Start isEmpty. Operand 49675 states and 92806 transitions. [2022-01-11 05:35:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:35:32,401 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:35:32,401 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:35:32,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:35:32,402 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2022-01-11 05:35:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:35:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash 523636146, now seen corresponding path program 1 times [2022-01-11 05:35:32,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:35:32,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630333696] [2022-01-11 05:35:32,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:35:32,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:35:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:35:32,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:35:32,456 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:35:32,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630333696] [2022-01-11 05:35:32,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630333696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:35:32,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:35:32,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:35:32,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371801940] [2022-01-11 05:35:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:35:32,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:35:32,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:35:32,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:35:32,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:35:32,458 INFO L87 Difference]: Start difference. First operand 49675 states and 92806 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:35:35,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:35:35,005 INFO L93 Difference]: Finished difference Result 129726 states and 242500 transitions. [2022-01-11 05:35:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:35:35,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-11 05:35:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:35:35,152 INFO L225 Difference]: With dead ends: 129726 [2022-01-11 05:35:35,152 INFO L226 Difference]: Without dead ends: 81568 [2022-01-11 05:35:35,190 INFO L932 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 [2022-01-11 05:35:35,190 INFO L933 BasicCegarLoop]: 18060 mSDtfsCounter, 10122 mSDsluCounter, 9493 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10122 SdHoareTripleChecker+Valid, 27553 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:35:35,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10122 Valid, 27553 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]