/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:02:22,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:02:22,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:02:22,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:02:22,823 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:02:22,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:02:22,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:02:22,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:02:22,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:02:22,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:02:22,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:02:22,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:02:22,866 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:02:22,867 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:02:22,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:02:22,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:02:22,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:02:22,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:02:22,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:02:22,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:02:22,877 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:02:22,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:02:22,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:02:22,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:02:22,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:02:22,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:02:22,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:02:22,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:02:22,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:02:22,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:02:22,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:02:22,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:02:22,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:02:22,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:02:22,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:02:22,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:02:22,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:02:22,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:02:22,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:02:22,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:02:22,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:02:22,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 18:02:22,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:02:22,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:02:22,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:02:22,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:02:22,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:02:22,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:02:22,958 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:02:22,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:02:22,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:02:22,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:02:22,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:02:22,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:02:22,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:02:22,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:02:22,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:02:22,961 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:02:22,961 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:02:23,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:02:23,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:02:23,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:02:23,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:02:23,204 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:02:23,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 18:02:23,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90857906c/a28c79ab848742289c01ee555fcea35c/FLAG193d58f66 [2022-01-10 18:02:23,725 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:02:23,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 18:02:23,740 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90857906c/a28c79ab848742289c01ee555fcea35c/FLAG193d58f66 [2022-01-10 18:02:23,752 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90857906c/a28c79ab848742289c01ee555fcea35c [2022-01-10 18:02:23,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:02:23,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:02:23,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:02:23,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:02:23,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:02:23,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:23" (1/1) ... [2022-01-10 18:02:23,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5694a113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:23, skipping insertion in model container [2022-01-10 18:02:23,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:02:23" (1/1) ... [2022-01-10 18:02:23,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:02:23,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:02:24,172 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/email_spec1_product20.cil.c[17698,17711] [2022-01-10 18:02:24,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:24,327 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:02:24,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:02:24,353 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/email_spec1_product20.cil.c[17698,17711] [2022-01-10 18:02:24,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:24,393 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:02:24,414 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/email_spec1_product20.cil.c[17698,17711] [2022-01-10 18:02:24,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:02:24,460 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:02:24,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24 WrapperNode [2022-01-10 18:02:24,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:02:24,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:02:24,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:02:24,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:02:24,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,496 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,592 INFO L137 Inliner]: procedures = 130, calls = 215, calls flagged for inlining = 125, calls inlined = 264, statements flattened = 3937 [2022-01-10 18:02:24,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:02:24,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:02:24,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:02:24,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:02:24,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,655 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:02:24,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:02:24,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:02:24,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:02:24,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (1/1) ... [2022-01-10 18:02:24,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:02:24,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:02:24,737 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) [2022-01-10 18:02:24,782 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 [2022-01-10 18:02:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 18:02:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:02:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:02:24,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:02:24,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:02:25,014 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:02:25,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:02:26,517 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:02:26,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:02:26,526 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:02:26,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:26 BoogieIcfgContainer [2022-01-10 18:02:26,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:02:26,529 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:02:26,529 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:02:26,530 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:02:26,532 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:26" (1/1) ... [2022-01-10 18:02:26,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:02:26 BasicIcfg [2022-01-10 18:02:26,911 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:02:26,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:02:26,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:02:26,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:02:26,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:02:23" (1/4) ... [2022-01-10 18:02:26,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfcf323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:26, skipping insertion in model container [2022-01-10 18:02:26,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:02:24" (2/4) ... [2022-01-10 18:02:26,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfcf323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:02:26, skipping insertion in model container [2022-01-10 18:02:26,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:02:26" (3/4) ... [2022-01-10 18:02:26,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfcf323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:02:26, skipping insertion in model container [2022-01-10 18:02:26,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:02:26" (4/4) ... [2022-01-10 18:02:26,916 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.cTransformedIcfg [2022-01-10 18:02:26,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:02:26,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 18:02:26,963 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:02:26,971 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 [2022-01-10 18:02:26,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 18:02:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 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) [2022-01-10 18:02:27,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 18:02:27,010 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:27,011 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] [2022-01-10 18:02:27,011 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:27,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1430592713, now seen corresponding path program 1 times [2022-01-10 18:02:27,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:27,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008099119] [2022-01-10 18:02:27,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:27,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:27,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:27,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:27,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008099119] [2022-01-10 18:02:27,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008099119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:27,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:27,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:02:27,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796492005] [2022-01-10 18:02:27,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:27,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:02:27,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:27,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:02:27,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:02:27,315 INFO L87 Difference]: Start difference. First operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 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 2 states, 2 states have (on average 25.5) internal successors, (51), 2 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) [2022-01-10 18:02:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:27,368 INFO L93 Difference]: Finished difference Result 1535 states and 2553 transitions. [2022-01-10 18:02:27,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:02:27,370 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 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 [2022-01-10 18:02:27,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:27,385 INFO L225 Difference]: With dead ends: 1535 [2022-01-10 18:02:27,385 INFO L226 Difference]: Without dead ends: 809 [2022-01-10 18:02:27,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:02:27,393 INFO L933 BasicCegarLoop]: 1536 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:27,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:27,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-01-10 18:02:27,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2022-01-10 18:02:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 803 states have (on average 1.7036114570361145) internal successors, (1368), 808 states have internal predecessors, (1368), 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) [2022-01-10 18:02:27,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1368 transitions. [2022-01-10 18:02:27,464 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1368 transitions. Word has length 51 [2022-01-10 18:02:27,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:27,465 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1368 transitions. [2022-01-10 18:02:27,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 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) [2022-01-10 18:02:27,465 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1368 transitions. [2022-01-10 18:02:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 18:02:27,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:27,466 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] [2022-01-10 18:02:27,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:02:27,467 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:27,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:27,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1707060413, now seen corresponding path program 1 times [2022-01-10 18:02:27,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:27,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347485251] [2022-01-10 18:02:27,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:27,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:27,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:27,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347485251] [2022-01-10 18:02:27,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347485251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:27,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:27,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:02:27,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555112566] [2022-01-10 18:02:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:27,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:27,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:27,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:27,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:27,610 INFO L87 Difference]: Start difference. First operand 809 states and 1368 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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) [2022-01-10 18:02:27,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:27,698 INFO L93 Difference]: Finished difference Result 1206 states and 2013 transitions. [2022-01-10 18:02:27,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:27,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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 [2022-01-10 18:02:27,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:27,702 INFO L225 Difference]: With dead ends: 1206 [2022-01-10 18:02:27,702 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 18:02:27,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:27,705 INFO L933 BasicCegarLoop]: 1348 mSDtfsCounter, 664 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:27,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 1971 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:27,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 18:02:27,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 18:02:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.7023959646910467) internal successors, (1350), 796 states have internal predecessors, (1350), 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) [2022-01-10 18:02:27,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1350 transitions. [2022-01-10 18:02:27,743 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1350 transitions. Word has length 52 [2022-01-10 18:02:27,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:27,743 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1350 transitions. [2022-01-10 18:02:27,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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) [2022-01-10 18:02:27,743 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1350 transitions. [2022-01-10 18:02:27,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 18:02:27,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:27,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:27,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:02:27,748 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:27,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:27,749 INFO L85 PathProgramCache]: Analyzing trace with hash 40653495, now seen corresponding path program 1 times [2022-01-10 18:02:27,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:27,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542088987] [2022-01-10 18:02:27,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:27,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:27,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:27,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542088987] [2022-01-10 18:02:27,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542088987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:27,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:27,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:02:27,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042158505] [2022-01-10 18:02:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:27,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:27,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:27,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:27,936 INFO L87 Difference]: Start difference. First operand 797 states and 1350 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-01-10 18:02:28,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,004 INFO L93 Difference]: Finished difference Result 1575 states and 2672 transitions. [2022-01-10 18:02:28,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2022-01-10 18:02:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,007 INFO L225 Difference]: With dead ends: 1575 [2022-01-10 18:02:28,008 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 18:02:28,012 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 [2022-01-10 18:02:28,014 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1325 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:28,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 1342 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:28,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 18:02:28,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 18:02:28,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.699873896595208) internal successors, (1348), 796 states have internal predecessors, (1348), 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) [2022-01-10 18:02:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1348 transitions. [2022-01-10 18:02:28,037 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1348 transitions. Word has length 92 [2022-01-10 18:02:28,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:28,038 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1348 transitions. [2022-01-10 18:02:28,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2022-01-10 18:02:28,039 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1348 transitions. [2022-01-10 18:02:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 18:02:28,040 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:28,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:28,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:02:28,041 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:28,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:28,042 INFO L85 PathProgramCache]: Analyzing trace with hash -350066953, now seen corresponding path program 1 times [2022-01-10 18:02:28,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:28,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964771710] [2022-01-10 18:02:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:28,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:28,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:28,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:28,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964771710] [2022-01-10 18:02:28,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964771710] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:28,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:28,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:28,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773388885] [2022-01-10 18:02:28,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:28,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:28,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:28,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:28,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:28,177 INFO L87 Difference]: Start difference. First operand 797 states and 1348 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2022-01-10 18:02:28,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,431 INFO L93 Difference]: Finished difference Result 3853 states and 6536 transitions. [2022-01-10 18:02:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:02:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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 94 [2022-01-10 18:02:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,441 INFO L225 Difference]: With dead ends: 3853 [2022-01-10 18:02:28,441 INFO L226 Difference]: Without dead ends: 3080 [2022-01-10 18:02:28,443 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 [2022-01-10 18:02:28,443 INFO L933 BasicCegarLoop]: 2619 mSDtfsCounter, 6523 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 6535 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:28,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 6535 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:28,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2022-01-10 18:02:28,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 797. [2022-01-10 18:02:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6986128625472887) internal successors, (1347), 796 states have internal predecessors, (1347), 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) [2022-01-10 18:02:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1347 transitions. [2022-01-10 18:02:28,494 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1347 transitions. Word has length 94 [2022-01-10 18:02:28,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:28,494 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1347 transitions. [2022-01-10 18:02:28,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 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) [2022-01-10 18:02:28,495 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1347 transitions. [2022-01-10 18:02:28,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 18:02:28,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:28,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:28,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:02:28,496 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1915357923, now seen corresponding path program 1 times [2022-01-10 18:02:28,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:28,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479909388] [2022-01-10 18:02:28,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:28,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:28,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:28,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:28,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:28,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479909388] [2022-01-10 18:02:28,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479909388] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:28,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:28,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:02:28,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404252236] [2022-01-10 18:02:28,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:28,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:02:28,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:28,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:02:28,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:02:28,589 INFO L87 Difference]: Start difference. First operand 797 states and 1347 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-01-10 18:02:28,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,665 INFO L93 Difference]: Finished difference Result 1579 states and 2672 transitions. [2022-01-10 18:02:28,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:02:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2022-01-10 18:02:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,668 INFO L225 Difference]: With dead ends: 1579 [2022-01-10 18:02:28,668 INFO L226 Difference]: Without dead ends: 811 [2022-01-10 18:02:28,669 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 [2022-01-10 18:02:28,670 INFO L933 BasicCegarLoop]: 1361 mSDtfsCounter, 1326 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:28,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 1383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:28,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-01-10 18:02:28,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 797. [2022-01-10 18:02:28,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6973518284993694) internal successors, (1346), 796 states have internal predecessors, (1346), 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) [2022-01-10 18:02:28,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1346 transitions. [2022-01-10 18:02:28,705 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1346 transitions. Word has length 95 [2022-01-10 18:02:28,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:28,709 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1346 transitions. [2022-01-10 18:02:28,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2022-01-10 18:02:28,709 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1346 transitions. [2022-01-10 18:02:28,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 18:02:28,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:28,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:28,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:02:28,714 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:28,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:28,714 INFO L85 PathProgramCache]: Analyzing trace with hash 378508406, now seen corresponding path program 1 times [2022-01-10 18:02:28,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:28,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391355944] [2022-01-10 18:02:28,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:28,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:28,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:28,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:28,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391355944] [2022-01-10 18:02:28,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391355944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:28,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:28,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:28,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507994821] [2022-01-10 18:02:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:28,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:28,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:28,839 INFO L87 Difference]: Start difference. First operand 797 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2022-01-10 18:02:28,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:28,992 INFO L93 Difference]: Finished difference Result 2325 states and 3938 transitions. [2022-01-10 18:02:28,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:02:28,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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 96 [2022-01-10 18:02:28,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:28,998 INFO L225 Difference]: With dead ends: 2325 [2022-01-10 18:02:28,998 INFO L226 Difference]: Without dead ends: 1562 [2022-01-10 18:02:28,999 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:29,000 INFO L933 BasicCegarLoop]: 1355 mSDtfsCounter, 6446 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6446 SdHoareTripleChecker+Valid, 2724 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:29,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6446 Valid, 2724 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-01-10 18:02:29,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 797. [2022-01-10 18:02:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.694829760403531) internal successors, (1344), 796 states have internal predecessors, (1344), 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) [2022-01-10 18:02:29,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1344 transitions. [2022-01-10 18:02:29,038 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1344 transitions. Word has length 96 [2022-01-10 18:02:29,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:29,040 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1344 transitions. [2022-01-10 18:02:29,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 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) [2022-01-10 18:02:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1344 transitions. [2022-01-10 18:02:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 18:02:29,041 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:29,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:29,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:02:29,042 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash -615610439, now seen corresponding path program 1 times [2022-01-10 18:02:29,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:29,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993938415] [2022-01-10 18:02:29,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:29,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:29,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:29,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:29,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993938415] [2022-01-10 18:02:29,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993938415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:29,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:29,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:02:29,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12314758] [2022-01-10 18:02:29,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:29,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:02:29,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:29,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:02:29,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:29,170 INFO L87 Difference]: Start difference. First operand 797 states and 1344 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-01-10 18:02:30,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:30,256 INFO L93 Difference]: Finished difference Result 3968 states and 6496 transitions. [2022-01-10 18:02:30,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:30,256 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-01-10 18:02:30,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:30,268 INFO L225 Difference]: With dead ends: 3968 [2022-01-10 18:02:30,268 INFO L226 Difference]: Without dead ends: 3531 [2022-01-10 18:02:30,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:02:30,274 INFO L933 BasicCegarLoop]: 1949 mSDtfsCounter, 9503 mSDsluCounter, 11535 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 13484 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:30,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9503 Valid, 13484 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 18:02:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-01-10 18:02:30,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 1502. [2022-01-10 18:02:30,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7016021361815754) internal successors, (2549), 1501 states have internal predecessors, (2549), 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) [2022-01-10 18:02:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2549 transitions. [2022-01-10 18:02:30,410 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2549 transitions. Word has length 98 [2022-01-10 18:02:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:30,411 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2549 transitions. [2022-01-10 18:02:30,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-01-10 18:02:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2549 transitions. [2022-01-10 18:02:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:02:30,413 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:30,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:30,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:02:30,414 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:30,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:30,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1219804352, now seen corresponding path program 1 times [2022-01-10 18:02:30,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:30,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944185336] [2022-01-10 18:02:30,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:30,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:30,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:30,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944185336] [2022-01-10 18:02:30,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944185336] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:30,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:30,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:02:30,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381755199] [2022-01-10 18:02:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:30,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:02:30,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:30,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:02:30,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:02:30,505 INFO L87 Difference]: Start difference. First operand 1502 states and 2549 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2022-01-10 18:02:30,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:30,668 INFO L93 Difference]: Finished difference Result 2406 states and 4020 transitions. [2022-01-10 18:02:30,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:02:30,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2022-01-10 18:02:30,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:30,676 INFO L225 Difference]: With dead ends: 2406 [2022-01-10 18:02:30,676 INFO L226 Difference]: Without dead ends: 1918 [2022-01-10 18:02:30,677 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 [2022-01-10 18:02:30,678 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 2185 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:30,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 3013 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:30,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-01-10 18:02:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1502. [2022-01-10 18:02:30,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7009345794392523) internal successors, (2548), 1501 states have internal predecessors, (2548), 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) [2022-01-10 18:02:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2548 transitions. [2022-01-10 18:02:30,759 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2548 transitions. Word has length 99 [2022-01-10 18:02:30,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:30,759 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2548 transitions. [2022-01-10 18:02:30,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2022-01-10 18:02:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2548 transitions. [2022-01-10 18:02:30,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:02:30,761 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:30,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:30,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:02:30,761 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1267315423, now seen corresponding path program 1 times [2022-01-10 18:02:30,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:30,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465989434] [2022-01-10 18:02:30,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:30,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:30,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:30,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465989434] [2022-01-10 18:02:30,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465989434] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:30,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:30,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:02:30,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192751543] [2022-01-10 18:02:30,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:30,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:30,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:30,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:30,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:30,876 INFO L87 Difference]: Start difference. First operand 1502 states and 2548 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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) [2022-01-10 18:02:31,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:31,480 INFO L93 Difference]: Finished difference Result 4860 states and 8060 transitions. [2022-01-10 18:02:31,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:31,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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 99 [2022-01-10 18:02:31,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:31,493 INFO L225 Difference]: With dead ends: 4860 [2022-01-10 18:02:31,493 INFO L226 Difference]: Without dead ends: 4154 [2022-01-10 18:02:31,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:31,498 INFO L933 BasicCegarLoop]: 3706 mSDtfsCounter, 3289 mSDsluCounter, 6972 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 10678 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:31,498 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 10678 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:02:31,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2022-01-10 18:02:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 1899. [2022-01-10 18:02:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1895 states have (on average 1.6770448548812664) internal successors, (3178), 1898 states have internal predecessors, (3178), 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) [2022-01-10 18:02:31,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3178 transitions. [2022-01-10 18:02:31,672 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3178 transitions. Word has length 99 [2022-01-10 18:02:31,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:31,672 INFO L470 AbstractCegarLoop]: Abstraction has 1899 states and 3178 transitions. [2022-01-10 18:02:31,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 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) [2022-01-10 18:02:31,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3178 transitions. [2022-01-10 18:02:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 18:02:31,674 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:31,674 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:31,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:02:31,675 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:31,675 INFO L85 PathProgramCache]: Analyzing trace with hash 113740957, now seen corresponding path program 1 times [2022-01-10 18:02:31,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528110402] [2022-01-10 18:02:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:31,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:31,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:31,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:31,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528110402] [2022-01-10 18:02:31,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528110402] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:31,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:31,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:02:31,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246403258] [2022-01-10 18:02:31,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:31,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:02:31,794 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:31,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:02:31,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:02:31,795 INFO L87 Difference]: Start difference. First operand 1899 states and 3178 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2022-01-10 18:02:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:33,005 INFO L93 Difference]: Finished difference Result 7532 states and 12302 transitions. [2022-01-10 18:02:33,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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 100 [2022-01-10 18:02:33,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:33,026 INFO L225 Difference]: With dead ends: 7532 [2022-01-10 18:02:33,026 INFO L226 Difference]: Without dead ends: 6686 [2022-01-10 18:02:33,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:02:33,029 INFO L933 BasicCegarLoop]: 1778 mSDtfsCounter, 10422 mSDsluCounter, 10630 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10422 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:33,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10422 Valid, 12408 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 18:02:33,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2022-01-10 18:02:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 3351. [2022-01-10 18:02:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3347 states have (on average 1.683896026292202) internal successors, (5636), 3350 states have internal predecessors, (5636), 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) [2022-01-10 18:02:33,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5636 transitions. [2022-01-10 18:02:33,290 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5636 transitions. Word has length 100 [2022-01-10 18:02:33,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:33,290 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 5636 transitions. [2022-01-10 18:02:33,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 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) [2022-01-10 18:02:33,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5636 transitions. [2022-01-10 18:02:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 18:02:33,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:33,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:33,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:02:33,295 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash 258347453, now seen corresponding path program 1 times [2022-01-10 18:02:33,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:33,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148714137] [2022-01-10 18:02:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:33,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:33,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:33,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148714137] [2022-01-10 18:02:33,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148714137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:33,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:33,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:33,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999421445] [2022-01-10 18:02:33,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:33,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:33,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:33,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:33,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:33,413 INFO L87 Difference]: Start difference. First operand 3351 states and 5636 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2022-01-10 18:02:34,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:34,641 INFO L93 Difference]: Finished difference Result 17808 states and 29677 transitions. [2022-01-10 18:02:34,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:34,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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 100 [2022-01-10 18:02:34,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:34,703 INFO L225 Difference]: With dead ends: 17808 [2022-01-10 18:02:34,703 INFO L226 Difference]: Without dead ends: 16356 [2022-01-10 18:02:34,707 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:34,708 INFO L933 BasicCegarLoop]: 1945 mSDtfsCounter, 7700 mSDsluCounter, 7366 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7700 SdHoareTripleChecker+Valid, 9311 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:34,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7700 Valid, 9311 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2022-01-10 18:02:35,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 6378. [2022-01-10 18:02:35,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6374 states have (on average 1.6846564166928146) internal successors, (10738), 6377 states have internal predecessors, (10738), 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) [2022-01-10 18:02:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 10738 transitions. [2022-01-10 18:02:35,181 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 10738 transitions. Word has length 100 [2022-01-10 18:02:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:35,181 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 10738 transitions. [2022-01-10 18:02:35,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 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) [2022-01-10 18:02:35,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 10738 transitions. [2022-01-10 18:02:35,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:35,190 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:35,190 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:35,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:02:35,191 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:35,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:35,191 INFO L85 PathProgramCache]: Analyzing trace with hash 972967677, now seen corresponding path program 1 times [2022-01-10 18:02:35,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:35,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719176558] [2022-01-10 18:02:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:35,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:35,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:35,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:35,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719176558] [2022-01-10 18:02:35,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719176558] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:35,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:35,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:35,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972359857] [2022-01-10 18:02:35,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:35,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:35,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:35,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:35,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:35,305 INFO L87 Difference]: Start difference. First operand 6378 states and 10738 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2022-01-10 18:02:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:37,798 INFO L93 Difference]: Finished difference Result 33356 states and 55668 transitions. [2022-01-10 18:02:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:37,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2022-01-10 18:02:37,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:37,856 INFO L225 Difference]: With dead ends: 33356 [2022-01-10 18:02:37,856 INFO L226 Difference]: Without dead ends: 30782 [2022-01-10 18:02:37,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:37,867 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 7501 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7501 SdHoareTripleChecker+Valid, 7753 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:37,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7501 Valid, 7753 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:37,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2022-01-10 18:02:38,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 12400. [2022-01-10 18:02:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12400 states, 12396 states have (on average 1.6865117779929009) internal successors, (20906), 12399 states have internal predecessors, (20906), 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) [2022-01-10 18:02:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12400 states to 12400 states and 20906 transitions. [2022-01-10 18:02:38,926 INFO L78 Accepts]: Start accepts. Automaton has 12400 states and 20906 transitions. Word has length 101 [2022-01-10 18:02:38,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:38,926 INFO L470 AbstractCegarLoop]: Abstraction has 12400 states and 20906 transitions. [2022-01-10 18:02:38,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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) [2022-01-10 18:02:38,926 INFO L276 IsEmpty]: Start isEmpty. Operand 12400 states and 20906 transitions. [2022-01-10 18:02:38,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:38,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:38,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:38,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:02:38,943 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:38,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:38,944 INFO L85 PathProgramCache]: Analyzing trace with hash -432659994, now seen corresponding path program 1 times [2022-01-10 18:02:38,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:38,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697723803] [2022-01-10 18:02:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:38,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:39,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:39,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:39,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697723803] [2022-01-10 18:02:39,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697723803] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:39,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:39,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:39,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162229162] [2022-01-10 18:02:39,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:39,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:02:39,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:39,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:02:39,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:39,047 INFO L87 Difference]: Start difference. First operand 12400 states and 20906 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 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) [2022-01-10 18:02:41,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:41,258 INFO L93 Difference]: Finished difference Result 29274 states and 48622 transitions. [2022-01-10 18:02:41,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:02:41,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2022-01-10 18:02:41,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:41,313 INFO L225 Difference]: With dead ends: 29274 [2022-01-10 18:02:41,313 INFO L226 Difference]: Without dead ends: 24708 [2022-01-10 18:02:41,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-10 18:02:41,324 INFO L933 BasicCegarLoop]: 3944 mSDtfsCounter, 4670 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 16812 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:41,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 16812 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 18:02:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24708 states. [2022-01-10 18:02:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24708 to 14000. [2022-01-10 18:02:42,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.66747642183481) internal successors, (23338), 13999 states have internal predecessors, (23338), 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) [2022-01-10 18:02:42,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23338 transitions. [2022-01-10 18:02:42,561 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23338 transitions. Word has length 101 [2022-01-10 18:02:42,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:42,562 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23338 transitions. [2022-01-10 18:02:42,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 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) [2022-01-10 18:02:42,562 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23338 transitions. [2022-01-10 18:02:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:02:42,586 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:42,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:42,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:02:42,587 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash -914315097, now seen corresponding path program 1 times [2022-01-10 18:02:42,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492944776] [2022-01-10 18:02:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:42,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:42,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:42,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:42,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:42,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492944776] [2022-01-10 18:02:42,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492944776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:42,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:42,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:02:42,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423818498] [2022-01-10 18:02:42,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:42,686 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:42,686 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:42,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:42,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:42,687 INFO L87 Difference]: Start difference. First operand 14000 states and 23338 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2022-01-10 18:02:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:44,668 INFO L93 Difference]: Finished difference Result 41656 states and 69490 transitions. [2022-01-10 18:02:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:02:44,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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 101 [2022-01-10 18:02:44,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:44,725 INFO L225 Difference]: With dead ends: 41656 [2022-01-10 18:02:44,726 INFO L226 Difference]: Without dead ends: 27706 [2022-01-10 18:02:44,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:44,743 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 3966 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:44,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 3885 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:44,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27706 states. [2022-01-10 18:02:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27706 to 14000. [2022-01-10 18:02:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.667333523863961) internal successors, (23336), 13999 states have internal predecessors, (23336), 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) [2022-01-10 18:02:45,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23336 transitions. [2022-01-10 18:02:45,900 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23336 transitions. Word has length 101 [2022-01-10 18:02:45,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:45,900 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23336 transitions. [2022-01-10 18:02:45,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 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) [2022-01-10 18:02:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23336 transitions. [2022-01-10 18:02:45,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 18:02:45,917 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:45,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:45,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:02:45,918 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:45,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:45,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1830903543, now seen corresponding path program 1 times [2022-01-10 18:02:45,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:45,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946838799] [2022-01-10 18:02:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:45,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:46,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:46,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:46,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946838799] [2022-01-10 18:02:46,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946838799] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:46,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:46,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:02:46,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078473324] [2022-01-10 18:02:46,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:46,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:02:46,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:46,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:02:46,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:02:46,031 INFO L87 Difference]: Start difference. First operand 14000 states and 23336 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2022-01-10 18:02:51,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:51,870 INFO L93 Difference]: Finished difference Result 71352 states and 118200 transitions. [2022-01-10 18:02:51,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:02:51,871 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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 102 [2022-01-10 18:02:51,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:52,006 INFO L225 Difference]: With dead ends: 71352 [2022-01-10 18:02:52,006 INFO L226 Difference]: Without dead ends: 65946 [2022-01-10 18:02:52,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 18:02:52,037 INFO L933 BasicCegarLoop]: 1929 mSDtfsCounter, 7439 mSDsluCounter, 5868 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7439 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:52,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7439 Valid, 7797 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:02:52,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65946 states. [2022-01-10 18:02:54,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65946 to 27508. [2022-01-10 18:02:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27508 states, 27504 states have (on average 1.669284467713787) internal successors, (45912), 27507 states have internal predecessors, (45912), 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) [2022-01-10 18:02:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27508 states to 27508 states and 45912 transitions. [2022-01-10 18:02:54,704 INFO L78 Accepts]: Start accepts. Automaton has 27508 states and 45912 transitions. Word has length 102 [2022-01-10 18:02:54,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:02:54,705 INFO L470 AbstractCegarLoop]: Abstraction has 27508 states and 45912 transitions. [2022-01-10 18:02:54,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 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) [2022-01-10 18:02:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 27508 states and 45912 transitions. [2022-01-10 18:02:54,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 18:02:54,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:02:54,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:02:54,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:02:54,740 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:02:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:02:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1002483754, now seen corresponding path program 1 times [2022-01-10 18:02:54,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:02:54,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944190738] [2022-01-10 18:02:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:02:54,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:02:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:02:54,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:02:54,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:02:54,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944190738] [2022-01-10 18:02:54,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944190738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:02:54,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:02:54,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:02:54,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755612932] [2022-01-10 18:02:54,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:02:54,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:02:54,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:02:54,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:02:54,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:02:54,835 INFO L87 Difference]: Start difference. First operand 27508 states and 45912 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-01-10 18:02:57,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:02:57,692 INFO L93 Difference]: Finished difference Result 36522 states and 60446 transitions. [2022-01-10 18:02:57,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:02:57,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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 102 [2022-01-10 18:02:57,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:02:57,740 INFO L225 Difference]: With dead ends: 36522 [2022-01-10 18:02:57,740 INFO L226 Difference]: Without dead ends: 32708 [2022-01-10 18:02:57,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:02:57,753 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 927 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:02:57,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 4525 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:02:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32708 states. [2022-01-10 18:03:00,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32708 to 32466. [2022-01-10 18:03:00,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6592323331895755) internal successors, (53862), 32465 states have internal predecessors, (53862), 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) [2022-01-10 18:03:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53862 transitions. [2022-01-10 18:03:00,567 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53862 transitions. Word has length 102 [2022-01-10 18:03:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:00,568 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53862 transitions. [2022-01-10 18:03:00,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 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) [2022-01-10 18:03:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53862 transitions. [2022-01-10 18:03:00,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:03:00,594 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:00,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:03:00,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:03:00,594 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash -372811543, now seen corresponding path program 1 times [2022-01-10 18:03:00,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:00,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985365626] [2022-01-10 18:03:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:00,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:00,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:00,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985365626] [2022-01-10 18:03:00,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985365626] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:00,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:00,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:03:00,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778969112] [2022-01-10 18:03:00,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:00,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:03:00,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:00,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:03:00,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:03:00,643 INFO L87 Difference]: Start difference. First operand 32466 states and 53862 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2022-01-10 18:03:04,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:03:04,692 INFO L93 Difference]: Finished difference Result 60546 states and 98695 transitions. [2022-01-10 18:03:04,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:03:04,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2022-01-10 18:03:04,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:03:04,767 INFO L225 Difference]: With dead ends: 60546 [2022-01-10 18:03:04,767 INFO L226 Difference]: Without dead ends: 42256 [2022-01-10 18:03:04,789 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 [2022-01-10 18:03:04,790 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 623 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:03:04,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 2541 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:03:04,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42256 states. [2022-01-10 18:03:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42256 to 32466. [2022-01-10 18:03:07,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6518390733781037) internal successors, (53622), 32465 states have internal predecessors, (53622), 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) [2022-01-10 18:03:08,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53622 transitions. [2022-01-10 18:03:08,069 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53622 transitions. Word has length 104 [2022-01-10 18:03:08,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:08,069 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53622 transitions. [2022-01-10 18:03:08,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 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) [2022-01-10 18:03:08,070 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53622 transitions. [2022-01-10 18:03:08,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 18:03:08,099 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:08,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:03:08,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:03:08,099 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:08,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1371094718, now seen corresponding path program 1 times [2022-01-10 18:03:08,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:08,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759543057] [2022-01-10 18:03:08,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:08,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:08,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:08,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759543057] [2022-01-10 18:03:08,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759543057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:08,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:08,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:03:08,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541805564] [2022-01-10 18:03:08,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:08,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:03:08,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:08,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:03:08,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:03:08,190 INFO L87 Difference]: Start difference. First operand 32466 states and 53622 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2022-01-10 18:03:15,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:03:15,864 INFO L93 Difference]: Finished difference Result 94096 states and 153014 transitions. [2022-01-10 18:03:15,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:03:15,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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 105 [2022-01-10 18:03:15,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:03:16,017 INFO L225 Difference]: With dead ends: 94096 [2022-01-10 18:03:16,018 INFO L226 Difference]: Without dead ends: 75166 [2022-01-10 18:03:16,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:03:16,050 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 2449 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:03:16,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 5495 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:03:16,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75166 states. [2022-01-10 18:03:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75166 to 61866. [2022-01-10 18:03:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61866 states, 61862 states have (on average 1.6493162199734894) internal successors, (102030), 61865 states have internal predecessors, (102030), 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) [2022-01-10 18:03:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61866 states to 61866 states and 102030 transitions. [2022-01-10 18:03:22,202 INFO L78 Accepts]: Start accepts. Automaton has 61866 states and 102030 transitions. Word has length 105 [2022-01-10 18:03:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:03:22,202 INFO L470 AbstractCegarLoop]: Abstraction has 61866 states and 102030 transitions. [2022-01-10 18:03:22,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 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) [2022-01-10 18:03:22,203 INFO L276 IsEmpty]: Start isEmpty. Operand 61866 states and 102030 transitions. [2022-01-10 18:03:22,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 18:03:22,274 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:03:22,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 18:03:22,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 18:03:22,275 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:03:22,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:03:22,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1279595085, now seen corresponding path program 1 times [2022-01-10 18:03:22,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:03:22,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692463200] [2022-01-10 18:03:22,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:03:22,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:03:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:03:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:03:22,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:03:22,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692463200] [2022-01-10 18:03:22,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692463200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:03:22,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:03:22,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:03:22,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839693482] [2022-01-10 18:03:22,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:03:22,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:03:22,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:03:22,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:03:22,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:03:22,391 INFO L87 Difference]: Start difference. First operand 61866 states and 102030 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 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)