/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_spec9_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 18:11:54,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 18:11:54,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 18:11:54,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 18:11:54,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 18:11:54,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 18:11:54,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 18:11:54,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 18:11:54,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 18:11:54,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 18:11:54,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 18:11:54,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 18:11:54,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 18:11:54,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 18:11:54,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 18:11:54,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 18:11:54,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 18:11:54,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 18:11:54,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 18:11:54,816 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 18:11:54,817 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 18:11:54,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 18:11:54,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 18:11:54,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 18:11:54,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 18:11:54,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 18:11:54,824 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 18:11:54,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 18:11:54,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 18:11:54,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 18:11:54,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 18:11:54,827 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 18:11:54,828 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 18:11:54,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 18:11:54,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 18:11:54,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 18:11:54,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 18:11:54,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 18:11:54,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 18:11:54,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 18:11:54,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 18:11:54,832 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 18:11:54,855 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 18:11:54,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 18:11:54,856 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 18:11:54,856 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 18:11:54,857 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 18:11:54,857 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 18:11:54,857 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 18:11:54,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 18:11:54,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 18:11:54,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 18:11:54,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 18:11:54,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:11:54,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 18:11:54,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 18:11:54,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 18:11:54,861 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 18:11:54,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 18:11:55,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 18:11:55,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 18:11:55,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 18:11:55,096 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 18:11:55,096 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 18:11:55,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product26.cil.c [2022-01-10 18:11:55,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae51c231/04469aa63b2b44939e7aafd197dbe9a4/FLAG51bdb50ce [2022-01-10 18:11:55,515 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 18:11:55,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product26.cil.c [2022-01-10 18:11:55,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae51c231/04469aa63b2b44939e7aafd197dbe9a4/FLAG51bdb50ce [2022-01-10 18:11:55,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae51c231/04469aa63b2b44939e7aafd197dbe9a4 [2022-01-10 18:11:55,882 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 18:11:55,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 18:11:55,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 18:11:55,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 18:11:55,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 18:11:55,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:11:55" (1/1) ... [2022-01-10 18:11:55,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27cb324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:55, skipping insertion in model container [2022-01-10 18:11:55,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 06:11:55" (1/1) ... [2022-01-10 18:11:55,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 18:11:55,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:11:56,285 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_spec9_product26.cil.c[24949,24962] [2022-01-10 18:11:56,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:11:56,422 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 18:11:56,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 18:11:56,470 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_spec9_product26.cil.c[24949,24962] [2022-01-10 18:11:56,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:11:56,523 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 18:11:56,566 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_spec9_product26.cil.c[24949,24962] [2022-01-10 18:11:56,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 18:11:56,619 INFO L208 MainTranslator]: Completed translation [2022-01-10 18:11:56,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56 WrapperNode [2022-01-10 18:11:56,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 18:11:56,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 18:11:56,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 18:11:56,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 18:11:56,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,780 INFO L137 Inliner]: procedures = 134, calls = 230, calls flagged for inlining = 134, calls inlined = 362, statements flattened = 5291 [2022-01-10 18:11:56,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 18:11:56,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 18:11:56,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 18:11:56,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 18:11:56,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,811 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 18:11:56,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 18:11:56,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 18:11:56,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 18:11:56,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (1/1) ... [2022-01-10 18:11:56,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 18:11:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 18:11:56,957 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 18:11:56,974 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 18:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 18:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 18:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 18:11:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 18:11:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 18:11:57,240 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 18:11:57,243 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 18:11:58,872 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 18:11:58,887 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 18:11:58,887 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 18:11:58,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:11:58 BoogieIcfgContainer [2022-01-10 18:11:58,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 18:11:58,889 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 18:11:58,889 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 18:11:58,900 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 18:11:58,902 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:11:58" (1/1) ... [2022-01-10 18:11:59,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:11:59 BasicIcfg [2022-01-10 18:11:59,319 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 18:11:59,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 18:11:59,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 18:11:59,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 18:11:59,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 06:11:55" (1/4) ... [2022-01-10 18:11:59,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bf597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:11:59, skipping insertion in model container [2022-01-10 18:11:59,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 06:11:56" (2/4) ... [2022-01-10 18:11:59,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bf597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 06:11:59, skipping insertion in model container [2022-01-10 18:11:59,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 06:11:58" (3/4) ... [2022-01-10 18:11:59,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15bf597e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 06:11:59, skipping insertion in model container [2022-01-10 18:11:59,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 06:11:59" (4/4) ... [2022-01-10 18:11:59,324 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec9_product26.cil.cTransformedIcfg [2022-01-10 18:11:59,327 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 18:11:59,327 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 18:11:59,370 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 18:11:59,374 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 18:11:59,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 18:11:59,399 INFO L276 IsEmpty]: Start isEmpty. Operand has 1137 states, 1130 states have (on average 1.665486725663717) internal successors, (1882), 1136 states have internal predecessors, (1882), 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 18:11:59,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 18:11:59,414 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:11:59,414 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 18:11:59,415 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 18:11:59,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:11:59,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1963789067, now seen corresponding path program 1 times [2022-01-10 18:11:59,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:11:59,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892347623] [2022-01-10 18:11:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:11:59,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:11:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:11:59,734 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 18:11:59,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:11:59,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892347623] [2022-01-10 18:11:59,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892347623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:11:59,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:11:59,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:11:59,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860617858] [2022-01-10 18:11:59,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:11:59,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 18:11:59,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:11:59,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 18:11:59,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 18:11:59,764 INFO L87 Difference]: Start difference. First operand has 1137 states, 1130 states have (on average 1.665486725663717) internal successors, (1882), 1136 states have internal predecessors, (1882), 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 18:11:59,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:11:59,858 INFO L93 Difference]: Finished difference Result 1960 states and 3209 transitions. [2022-01-10 18:11:59,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 18:11:59,872 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 18:11:59,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:11:59,892 INFO L225 Difference]: With dead ends: 1960 [2022-01-10 18:11:59,892 INFO L226 Difference]: Without dead ends: 954 [2022-01-10 18:11:59,897 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 18:11:59,899 INFO L933 BasicCegarLoop]: 1868 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, 1868 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 18:11:59,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:11:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-01-10 18:11:59,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 954. [2022-01-10 18:11:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 954 states, 948 states have (on average 1.6793248945147679) internal successors, (1592), 953 states have internal predecessors, (1592), 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 18:11:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 954 states to 954 states and 1592 transitions. [2022-01-10 18:11:59,991 INFO L78 Accepts]: Start accepts. Automaton has 954 states and 1592 transitions. Word has length 51 [2022-01-10 18:11:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:11:59,991 INFO L470 AbstractCegarLoop]: Abstraction has 954 states and 1592 transitions. [2022-01-10 18:11:59,991 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 18:11:59,991 INFO L276 IsEmpty]: Start isEmpty. Operand 954 states and 1592 transitions. [2022-01-10 18:11:59,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 18:11:59,993 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:11:59,993 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 18:11:59,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 18:11:59,993 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 18:11:59,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:11:59,994 INFO L85 PathProgramCache]: Analyzing trace with hash -899021857, now seen corresponding path program 1 times [2022-01-10 18:11:59,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:11:59,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315084167] [2022-01-10 18:11:59,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:11:59,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:00,158 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 18:12:00,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:00,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315084167] [2022-01-10 18:12:00,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315084167] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:00,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:00,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 18:12:00,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021299625] [2022-01-10 18:12:00,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:00,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:00,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:00,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:00,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:00,161 INFO L87 Difference]: Start difference. First operand 954 states and 1592 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 18:12:00,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:00,205 INFO L93 Difference]: Finished difference Result 1511 states and 2485 transitions. [2022-01-10 18:12:00,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:00,205 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 18:12:00,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:00,209 INFO L225 Difference]: With dead ends: 1511 [2022-01-10 18:12:00,209 INFO L226 Difference]: Without dead ends: 956 [2022-01-10 18:12:00,212 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 18:12:00,213 INFO L933 BasicCegarLoop]: 1572 mSDtfsCounter, 696 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:00,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 2413 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:00,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-01-10 18:12:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 942. [2022-01-10 18:12:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6780383795309168) internal successors, (1574), 941 states have internal predecessors, (1574), 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 18:12:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1574 transitions. [2022-01-10 18:12:00,239 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1574 transitions. Word has length 52 [2022-01-10 18:12:00,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:00,241 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1574 transitions. [2022-01-10 18:12:00,242 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 18:12:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1574 transitions. [2022-01-10 18:12:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 18:12:00,249 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:00,249 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] [2022-01-10 18:12:00,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 18:12:00,249 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 18:12:00,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:00,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1897772641, now seen corresponding path program 1 times [2022-01-10 18:12:00,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:00,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386426950] [2022-01-10 18:12:00,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:00,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:00,423 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 18:12:00,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:00,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386426950] [2022-01-10 18:12:00,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386426950] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:00,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:00,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:00,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018947176] [2022-01-10 18:12:00,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:00,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:00,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:00,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:00,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:00,427 INFO L87 Difference]: Start difference. First operand 942 states and 1574 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:12:00,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:00,506 INFO L93 Difference]: Finished difference Result 1865 states and 3120 transitions. [2022-01-10 18:12:00,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:00,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2022-01-10 18:12:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:00,510 INFO L225 Difference]: With dead ends: 1865 [2022-01-10 18:12:00,510 INFO L226 Difference]: Without dead ends: 942 [2022-01-10 18:12:00,513 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 18:12:00,516 INFO L933 BasicCegarLoop]: 1552 mSDtfsCounter, 1549 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1565 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:00,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 1565 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:00,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2022-01-10 18:12:00,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 942. [2022-01-10 18:12:00,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.67590618336887) internal successors, (1572), 941 states have internal predecessors, (1572), 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 18:12:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1572 transitions. [2022-01-10 18:12:00,587 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1572 transitions. Word has length 97 [2022-01-10 18:12:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:00,589 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1572 transitions. [2022-01-10 18:12:00,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 18:12:00,589 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1572 transitions. [2022-01-10 18:12:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 18:12:00,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:00,591 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 18:12:00,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 18:12:00,591 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 18:12:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:00,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1345652385, now seen corresponding path program 1 times [2022-01-10 18:12:00,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:00,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081379546] [2022-01-10 18:12:00,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:00,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:00,717 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 18:12:00,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:00,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081379546] [2022-01-10 18:12:00,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081379546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:00,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:00,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:00,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164781946] [2022-01-10 18:12:00,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:00,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:00,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:00,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:00,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:00,720 INFO L87 Difference]: Start difference. First operand 942 states and 1572 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 18:12:00,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:00,976 INFO L93 Difference]: Finished difference Result 4578 states and 7656 transitions. [2022-01-10 18:12:00,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 18:12:00,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 18:12:00,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:00,989 INFO L225 Difference]: With dead ends: 4578 [2022-01-10 18:12:00,989 INFO L226 Difference]: Without dead ends: 3660 [2022-01-10 18:12:00,991 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 18:12:00,997 INFO L933 BasicCegarLoop]: 3067 mSDtfsCounter, 7643 mSDsluCounter, 4588 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7643 SdHoareTripleChecker+Valid, 7655 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 18:12:00,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7643 Valid, 7655 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:01,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2022-01-10 18:12:01,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 942. [2022-01-10 18:12:01,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6748400852878464) internal successors, (1571), 941 states have internal predecessors, (1571), 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 18:12:01,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1571 transitions. [2022-01-10 18:12:01,099 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1571 transitions. Word has length 99 [2022-01-10 18:12:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:01,099 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1571 transitions. [2022-01-10 18:12:01,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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 18:12:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1571 transitions. [2022-01-10 18:12:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 18:12:01,100 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:01,101 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 18:12:01,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 18:12:01,101 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 18:12:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash 231832537, now seen corresponding path program 1 times [2022-01-10 18:12:01,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:01,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965133527] [2022-01-10 18:12:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:01,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:01,181 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 18:12:01,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:01,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965133527] [2022-01-10 18:12:01,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965133527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:01,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:01,181 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:01,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817073266] [2022-01-10 18:12:01,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:01,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:01,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:01,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:01,183 INFO L87 Difference]: Start difference. First operand 942 states and 1571 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 18:12:01,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:01,244 INFO L93 Difference]: Finished difference Result 1869 states and 3120 transitions. [2022-01-10 18:12:01,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:01,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 18:12:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:01,248 INFO L225 Difference]: With dead ends: 1869 [2022-01-10 18:12:01,248 INFO L226 Difference]: Without dead ends: 956 [2022-01-10 18:12:01,249 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 18:12:01,249 INFO L933 BasicCegarLoop]: 1585 mSDtfsCounter, 1550 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1550 SdHoareTripleChecker+Valid, 1607 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 18:12:01,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1550 Valid, 1607 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:01,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2022-01-10 18:12:01,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 942. [2022-01-10 18:12:01,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.6737739872068231) internal successors, (1570), 941 states have internal predecessors, (1570), 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 18:12:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1570 transitions. [2022-01-10 18:12:01,285 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1570 transitions. Word has length 100 [2022-01-10 18:12:01,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:01,285 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1570 transitions. [2022-01-10 18:12:01,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 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 18:12:01,286 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1570 transitions. [2022-01-10 18:12:01,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 18:12:01,287 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:01,287 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 18:12:01,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 18:12:01,287 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 18:12:01,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:01,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1047428928, now seen corresponding path program 1 times [2022-01-10 18:12:01,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:01,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354740544] [2022-01-10 18:12:01,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:01,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:01,368 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 18:12:01,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:01,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354740544] [2022-01-10 18:12:01,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354740544] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:01,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:01,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 18:12:01,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258762615] [2022-01-10 18:12:01,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:01,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:01,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:01,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:01,370 INFO L87 Difference]: Start difference. First operand 942 states and 1570 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 18:12:01,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:01,569 INFO L93 Difference]: Finished difference Result 2760 states and 4610 transitions. [2022-01-10 18:12:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 18:12:01,570 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 18:12:01,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:01,575 INFO L225 Difference]: With dead ends: 2760 [2022-01-10 18:12:01,575 INFO L226 Difference]: Without dead ends: 1852 [2022-01-10 18:12:01,576 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 18:12:01,577 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 7566 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7566 SdHoareTripleChecker+Valid, 3172 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 18:12:01,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7566 Valid, 3172 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:01,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2022-01-10 18:12:01,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 942. [2022-01-10 18:12:01,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 938 states have (on average 1.671641791044776) internal successors, (1568), 941 states have internal predecessors, (1568), 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 18:12:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1568 transitions. [2022-01-10 18:12:01,622 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1568 transitions. Word has length 101 [2022-01-10 18:12:01,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:01,622 INFO L470 AbstractCegarLoop]: Abstraction has 942 states and 1568 transitions. [2022-01-10 18:12:01,622 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 18:12:01,622 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1568 transitions. [2022-01-10 18:12:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 18:12:01,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:01,624 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] [2022-01-10 18:12:01,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 18:12:01,624 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 18:12:01,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:01,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1565378083, now seen corresponding path program 1 times [2022-01-10 18:12:01,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:01,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929320595] [2022-01-10 18:12:01,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:01,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:01,754 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 18:12:01,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:01,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929320595] [2022-01-10 18:12:01,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929320595] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:01,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:01,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 18:12:01,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326548057] [2022-01-10 18:12:01,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:01,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:12:01,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:01,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:12:01,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:01,756 INFO L87 Difference]: Start difference. First operand 942 states and 1568 transitions. Second operand has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 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 18:12:03,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:03,261 INFO L93 Difference]: Finished difference Result 5252 states and 8494 transitions. [2022-01-10 18:12:03,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 18:12:03,262 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 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 103 [2022-01-10 18:12:03,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:03,283 INFO L225 Difference]: With dead ends: 5252 [2022-01-10 18:12:03,284 INFO L226 Difference]: Without dead ends: 4675 [2022-01-10 18:12:03,287 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 18:12:03,288 INFO L933 BasicCegarLoop]: 2482 mSDtfsCounter, 12065 mSDsluCounter, 14072 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12065 SdHoareTripleChecker+Valid, 16554 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:03,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12065 Valid, 16554 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 18:12:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4675 states. [2022-01-10 18:12:03,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4675 to 1792. [2022-01-10 18:12:03,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1788 states have (on average 1.6761744966442953) internal successors, (2997), 1791 states have internal predecessors, (2997), 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 18:12:03,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2997 transitions. [2022-01-10 18:12:03,462 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2997 transitions. Word has length 103 [2022-01-10 18:12:03,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:03,462 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2997 transitions. [2022-01-10 18:12:03,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.444444444444445) internal successors, (103), 8 states have internal predecessors, (103), 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 18:12:03,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2997 transitions. [2022-01-10 18:12:03,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:12:03,465 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:03,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:03,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 18:12:03,466 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 18:12:03,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:03,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1210733462, now seen corresponding path program 1 times [2022-01-10 18:12:03,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:03,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648607102] [2022-01-10 18:12:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:03,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:03,598 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 18:12:03,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:03,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648607102] [2022-01-10 18:12:03,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648607102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:03,599 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:03,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:03,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203723476] [2022-01-10 18:12:03,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:03,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 18:12:03,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 18:12:03,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 18:12:03,601 INFO L87 Difference]: Start difference. First operand 1792 states and 2997 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 18:12:03,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:03,844 INFO L93 Difference]: Finished difference Result 2973 states and 4893 transitions. [2022-01-10 18:12:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 18:12:03,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 18:12:03,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:03,854 INFO L225 Difference]: With dead ends: 2973 [2022-01-10 18:12:03,855 INFO L226 Difference]: Without dead ends: 2345 [2022-01-10 18:12:03,857 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 18:12:03,857 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 2796 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2796 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:03,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2796 Valid, 3448 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2022-01-10 18:12:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1792. [2022-01-10 18:12:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1788 states have (on average 1.6756152125279642) internal successors, (2996), 1791 states have internal predecessors, (2996), 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 18:12:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2996 transitions. [2022-01-10 18:12:04,002 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2996 transitions. Word has length 104 [2022-01-10 18:12:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:04,003 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2996 transitions. [2022-01-10 18:12:04,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 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 18:12:04,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2996 transitions. [2022-01-10 18:12:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 18:12:04,006 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:04,006 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 18:12:04,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 18:12:04,006 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 18:12:04,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash 602656599, now seen corresponding path program 1 times [2022-01-10 18:12:04,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:04,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976691749] [2022-01-10 18:12:04,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:04,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:04,162 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 18:12:04,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:04,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976691749] [2022-01-10 18:12:04,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976691749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:04,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:04,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:04,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745032754] [2022-01-10 18:12:04,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:04,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:04,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:04,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:04,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:04,165 INFO L87 Difference]: Start difference. First operand 1792 states and 2996 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 18:12:05,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:05,329 INFO L93 Difference]: Finished difference Result 8879 states and 14282 transitions. [2022-01-10 18:12:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:05,329 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 18:12:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:05,358 INFO L225 Difference]: With dead ends: 8879 [2022-01-10 18:12:05,358 INFO L226 Difference]: Without dead ends: 7310 [2022-01-10 18:12:05,362 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 18:12:05,362 INFO L933 BasicCegarLoop]: 1557 mSDtfsCounter, 8867 mSDsluCounter, 5300 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8867 SdHoareTripleChecker+Valid, 6857 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:05,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8867 Valid, 6857 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:12:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-01-10 18:12:05,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 3964. [2022-01-10 18:12:05,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3960 states have (on average 1.6318181818181818) internal successors, (6462), 3963 states have internal predecessors, (6462), 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 18:12:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 6462 transitions. [2022-01-10 18:12:05,832 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 6462 transitions. Word has length 104 [2022-01-10 18:12:05,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:05,833 INFO L470 AbstractCegarLoop]: Abstraction has 3964 states and 6462 transitions. [2022-01-10 18:12:05,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 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 18:12:05,833 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 6462 transitions. [2022-01-10 18:12:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 18:12:05,839 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:05,840 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 18:12:05,840 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 18:12:05,840 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 18:12:05,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:05,841 INFO L85 PathProgramCache]: Analyzing trace with hash -617876652, now seen corresponding path program 1 times [2022-01-10 18:12:05,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:05,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488735647] [2022-01-10 18:12:05,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:05,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:05,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:05,995 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 18:12:05,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:05,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488735647] [2022-01-10 18:12:05,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488735647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:05,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:05,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 18:12:05,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303747018] [2022-01-10 18:12:05,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:05,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 18:12:05,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:05,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 18:12:05,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 18:12:05,997 INFO L87 Difference]: Start difference. First operand 3964 states and 6462 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 18:12:06,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:06,946 INFO L93 Difference]: Finished difference Result 7682 states and 12348 transitions. [2022-01-10 18:12:06,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 18:12:06,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 18:12:06,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:06,961 INFO L225 Difference]: With dead ends: 7682 [2022-01-10 18:12:06,962 INFO L226 Difference]: Without dead ends: 5390 [2022-01-10 18:12:06,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2022-01-10 18:12:06,968 INFO L933 BasicCegarLoop]: 1673 mSDtfsCounter, 8334 mSDsluCounter, 6736 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8334 SdHoareTripleChecker+Valid, 8409 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:06,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8334 Valid, 8409 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:06,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5390 states. [2022-01-10 18:12:07,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5390 to 3258. [2022-01-10 18:12:07,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3258 states, 3254 states have (on average 1.633681622618316) internal successors, (5316), 3257 states have internal predecessors, (5316), 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 18:12:07,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3258 states to 3258 states and 5316 transitions. [2022-01-10 18:12:07,296 INFO L78 Accepts]: Start accepts. Automaton has 3258 states and 5316 transitions. Word has length 105 [2022-01-10 18:12:07,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:07,296 INFO L470 AbstractCegarLoop]: Abstraction has 3258 states and 5316 transitions. [2022-01-10 18:12:07,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 9 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 18:12:07,296 INFO L276 IsEmpty]: Start isEmpty. Operand 3258 states and 5316 transitions. [2022-01-10 18:12:07,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 18:12:07,302 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:07,302 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, 1, 1] [2022-01-10 18:12:07,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 18:12:07,303 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 18:12:07,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:07,304 INFO L85 PathProgramCache]: Analyzing trace with hash -464414241, now seen corresponding path program 1 times [2022-01-10 18:12:07,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:07,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874611479] [2022-01-10 18:12:07,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:07,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:07,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:07,473 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 18:12:07,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:07,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874611479] [2022-01-10 18:12:07,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874611479] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:07,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:07,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:07,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583401771] [2022-01-10 18:12:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:07,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:07,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:07,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:07,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:07,476 INFO L87 Difference]: Start difference. First operand 3258 states and 5316 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 18:12:09,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:09,297 INFO L93 Difference]: Finished difference Result 16113 states and 25703 transitions. [2022-01-10 18:12:09,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:09,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 108 [2022-01-10 18:12:09,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:09,327 INFO L225 Difference]: With dead ends: 16113 [2022-01-10 18:12:09,328 INFO L226 Difference]: Without dead ends: 13561 [2022-01-10 18:12:09,337 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 18:12:09,337 INFO L933 BasicCegarLoop]: 1823 mSDtfsCounter, 6402 mSDsluCounter, 5403 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6402 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:09,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6402 Valid, 7226 Invalid, 206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [85 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13561 states. [2022-01-10 18:12:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13561 to 6477. [2022-01-10 18:12:09,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6477 states, 6473 states have (on average 1.629074617642515) internal successors, (10545), 6476 states have internal predecessors, (10545), 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 18:12:09,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6477 states to 6477 states and 10545 transitions. [2022-01-10 18:12:09,968 INFO L78 Accepts]: Start accepts. Automaton has 6477 states and 10545 transitions. Word has length 108 [2022-01-10 18:12:09,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:09,969 INFO L470 AbstractCegarLoop]: Abstraction has 6477 states and 10545 transitions. [2022-01-10 18:12:09,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 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 18:12:09,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6477 states and 10545 transitions. [2022-01-10 18:12:09,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 18:12:09,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:09,977 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, 1, 1, 1] [2022-01-10 18:12:09,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 18:12:09,977 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 18:12:09,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:09,978 INFO L85 PathProgramCache]: Analyzing trace with hash -348019702, now seen corresponding path program 1 times [2022-01-10 18:12:09,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:09,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813716230] [2022-01-10 18:12:09,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:09,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:10,119 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 18:12:10,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:10,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813716230] [2022-01-10 18:12:10,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813716230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:10,119 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:10,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 18:12:10,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816791127] [2022-01-10 18:12:10,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:10,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 18:12:10,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:10,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 18:12:10,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 18:12:10,121 INFO L87 Difference]: Start difference. First operand 6477 states and 10545 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 18:12:12,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:12,855 INFO L93 Difference]: Finished difference Result 25242 states and 40266 transitions. [2022-01-10 18:12:12,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 18:12:12,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 109 [2022-01-10 18:12:12,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:12,902 INFO L225 Difference]: With dead ends: 25242 [2022-01-10 18:12:12,902 INFO L226 Difference]: Without dead ends: 20140 [2022-01-10 18:12:12,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:12:12,919 INFO L933 BasicCegarLoop]: 2196 mSDtfsCounter, 4294 mSDsluCounter, 4704 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4294 SdHoareTripleChecker+Valid, 6900 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:12,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4294 Valid, 6900 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 18:12:12,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20140 states. [2022-01-10 18:12:14,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20140 to 12299. [2022-01-10 18:12:14,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12299 states, 12295 states have (on average 1.6194387962586416) internal successors, (19911), 12298 states have internal predecessors, (19911), 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 18:12:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12299 states to 12299 states and 19911 transitions. [2022-01-10 18:12:14,200 INFO L78 Accepts]: Start accepts. Automaton has 12299 states and 19911 transitions. Word has length 109 [2022-01-10 18:12:14,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:14,200 INFO L470 AbstractCegarLoop]: Abstraction has 12299 states and 19911 transitions. [2022-01-10 18:12:14,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 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 18:12:14,201 INFO L276 IsEmpty]: Start isEmpty. Operand 12299 states and 19911 transitions. [2022-01-10 18:12:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 18:12:14,215 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:14,215 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, 1, 1, 1] [2022-01-10 18:12:14,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 18:12:14,216 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 18:12:14,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:14,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1929105683, now seen corresponding path program 1 times [2022-01-10 18:12:14,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:14,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798396250] [2022-01-10 18:12:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:14,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:14,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:14,353 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 18:12:14,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:14,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798396250] [2022-01-10 18:12:14,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798396250] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:14,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:14,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 18:12:14,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710935189] [2022-01-10 18:12:14,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:14,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 18:12:14,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 18:12:14,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 18:12:14,355 INFO L87 Difference]: Start difference. First operand 12299 states and 19911 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 18:12:15,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:15,747 INFO L93 Difference]: Finished difference Result 23110 states and 36954 transitions. [2022-01-10 18:12:15,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:15,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 109 [2022-01-10 18:12:15,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:15,775 INFO L225 Difference]: With dead ends: 23110 [2022-01-10 18:12:15,775 INFO L226 Difference]: Without dead ends: 12876 [2022-01-10 18:12:15,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-01-10 18:12:15,791 INFO L933 BasicCegarLoop]: 1520 mSDtfsCounter, 5057 mSDsluCounter, 3276 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5057 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:15,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5057 Valid, 4796 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 18:12:15,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12876 states. [2022-01-10 18:12:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12876 to 11518. [2022-01-10 18:12:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11518 states, 11514 states have (on average 1.608910891089109) internal successors, (18525), 11517 states have internal predecessors, (18525), 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 18:12:17,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11518 states to 11518 states and 18525 transitions. [2022-01-10 18:12:17,459 INFO L78 Accepts]: Start accepts. Automaton has 11518 states and 18525 transitions. Word has length 109 [2022-01-10 18:12:17,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:17,460 INFO L470 AbstractCegarLoop]: Abstraction has 11518 states and 18525 transitions. [2022-01-10 18:12:17,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 18:12:17,460 INFO L276 IsEmpty]: Start isEmpty. Operand 11518 states and 18525 transitions. [2022-01-10 18:12:17,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 18:12:17,498 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:17,498 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:17,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 18:12:17,498 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 18:12:17,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1247110678, now seen corresponding path program 1 times [2022-01-10 18:12:17,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:17,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692991330] [2022-01-10 18:12:17,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:17,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:17,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:17,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:17,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692991330] [2022-01-10 18:12:17,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692991330] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:17,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:17,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:17,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061802927] [2022-01-10 18:12:17,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:17,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:17,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:17,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:17,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:17,617 INFO L87 Difference]: Start difference. First operand 11518 states and 18525 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 18:12:20,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:20,543 INFO L93 Difference]: Finished difference Result 34168 states and 54901 transitions. [2022-01-10 18:12:20,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:20,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 126 [2022-01-10 18:12:20,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:20,592 INFO L225 Difference]: With dead ends: 34168 [2022-01-10 18:12:20,593 INFO L226 Difference]: Without dead ends: 22687 [2022-01-10 18:12:20,615 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 18:12:20,616 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 1479 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 2966 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:20,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 2966 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22687 states. [2022-01-10 18:12:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22687 to 12832. [2022-01-10 18:12:22,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12832 states, 12828 states have (on average 1.6283910196445277) internal successors, (20889), 12831 states have internal predecessors, (20889), 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 18:12:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12832 states to 12832 states and 20889 transitions. [2022-01-10 18:12:22,406 INFO L78 Accepts]: Start accepts. Automaton has 12832 states and 20889 transitions. Word has length 126 [2022-01-10 18:12:22,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:22,406 INFO L470 AbstractCegarLoop]: Abstraction has 12832 states and 20889 transitions. [2022-01-10 18:12:22,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 18:12:22,407 INFO L276 IsEmpty]: Start isEmpty. Operand 12832 states and 20889 transitions. [2022-01-10 18:12:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 18:12:22,435 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:22,436 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:22,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 18:12:22,436 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 18:12:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1335289033, now seen corresponding path program 1 times [2022-01-10 18:12:22,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:22,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383408099] [2022-01-10 18:12:22,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:22,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:22,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:22,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383408099] [2022-01-10 18:12:22,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383408099] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:22,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:22,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:22,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921289123] [2022-01-10 18:12:22,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:22,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:22,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:22,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:22,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:22,513 INFO L87 Difference]: Start difference. First operand 12832 states and 20889 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 18:12:25,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:25,873 INFO L93 Difference]: Finished difference Result 38350 states and 62449 transitions. [2022-01-10 18:12:25,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2022-01-10 18:12:25,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:25,936 INFO L225 Difference]: With dead ends: 38350 [2022-01-10 18:12:25,936 INFO L226 Difference]: Without dead ends: 25555 [2022-01-10 18:12:25,961 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 18:12:25,962 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 1477 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:25,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1477 Valid, 3052 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:25,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25555 states. [2022-01-10 18:12:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25555 to 15700. [2022-01-10 18:12:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15700 states, 15696 states have (on average 1.6607415902140672) internal successors, (26067), 15699 states have internal predecessors, (26067), 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 18:12:27,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15700 states to 15700 states and 26067 transitions. [2022-01-10 18:12:27,951 INFO L78 Accepts]: Start accepts. Automaton has 15700 states and 26067 transitions. Word has length 127 [2022-01-10 18:12:27,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:27,954 INFO L470 AbstractCegarLoop]: Abstraction has 15700 states and 26067 transitions. [2022-01-10 18:12:27,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 18:12:27,954 INFO L276 IsEmpty]: Start isEmpty. Operand 15700 states and 26067 transitions. [2022-01-10 18:12:27,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-01-10 18:12:27,987 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:27,987 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:27,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 18:12:27,988 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 18:12:27,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:27,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1556591453, now seen corresponding path program 1 times [2022-01-10 18:12:27,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:27,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425373567] [2022-01-10 18:12:27,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:27,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 18:12:28,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:28,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425373567] [2022-01-10 18:12:28,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425373567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:28,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:28,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 18:12:28,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519884907] [2022-01-10 18:12:28,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:28,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 18:12:28,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 18:12:28,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 18:12:28,071 INFO L87 Difference]: Start difference. First operand 15700 states and 26067 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 18:12:31,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:31,679 INFO L93 Difference]: Finished difference Result 46882 states and 77863 transitions. [2022-01-10 18:12:31,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 18:12:31,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2022-01-10 18:12:31,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:31,752 INFO L225 Difference]: With dead ends: 46882 [2022-01-10 18:12:31,752 INFO L226 Difference]: Without dead ends: 31219 [2022-01-10 18:12:31,779 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 18:12:31,780 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 1475 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1475 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:31,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1475 Valid, 3052 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 18:12:31,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31219 states. [2022-01-10 18:12:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31219 to 21364. [2022-01-10 18:12:34,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21364 states, 21360 states have (on average 1.6990168539325843) internal successors, (36291), 21363 states have internal predecessors, (36291), 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 18:12:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21364 states to 21364 states and 36291 transitions. [2022-01-10 18:12:34,167 INFO L78 Accepts]: Start accepts. Automaton has 21364 states and 36291 transitions. Word has length 128 [2022-01-10 18:12:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:34,167 INFO L470 AbstractCegarLoop]: Abstraction has 21364 states and 36291 transitions. [2022-01-10 18:12:34,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 18:12:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 21364 states and 36291 transitions. [2022-01-10 18:12:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-01-10 18:12:34,203 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:34,203 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:34,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 18:12:34,203 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:34,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:34,204 INFO L85 PathProgramCache]: Analyzing trace with hash -54241613, now seen corresponding path program 1 times [2022-01-10 18:12:34,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:34,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380267612] [2022-01-10 18:12:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:34,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:12:34,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:34,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380267612] [2022-01-10 18:12:34,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380267612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:34,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:34,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:12:34,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286201926] [2022-01-10 18:12:34,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:34,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:12:34,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:34,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:12:34,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:12:34,391 INFO L87 Difference]: Start difference. First operand 21364 states and 36291 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 18:12:47,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 18:12:47,200 INFO L93 Difference]: Finished difference Result 108694 states and 181750 transitions. [2022-01-10 18:12:47,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 18:12:47,201 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 129 [2022-01-10 18:12:47,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 18:12:47,551 INFO L225 Difference]: With dead ends: 108694 [2022-01-10 18:12:47,551 INFO L226 Difference]: Without dead ends: 101170 [2022-01-10 18:12:47,608 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 18:12:47,611 INFO L933 BasicCegarLoop]: 2445 mSDtfsCounter, 9091 mSDsluCounter, 8745 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9091 SdHoareTripleChecker+Valid, 11190 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 18:12:47,613 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9091 Valid, 11190 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 18:12:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101170 states. [2022-01-10 18:12:52,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101170 to 41992. [2022-01-10 18:12:52,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41992 states, 41988 states have (on average 1.698437648852053) internal successors, (71314), 41991 states have internal predecessors, (71314), 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 18:12:52,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41992 states to 41992 states and 71314 transitions. [2022-01-10 18:12:52,807 INFO L78 Accepts]: Start accepts. Automaton has 41992 states and 71314 transitions. Word has length 129 [2022-01-10 18:12:52,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 18:12:52,808 INFO L470 AbstractCegarLoop]: Abstraction has 41992 states and 71314 transitions. [2022-01-10 18:12:52,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 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 18:12:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 41992 states and 71314 transitions. [2022-01-10 18:12:52,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-01-10 18:12:52,867 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 18:12:52,868 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:12:52,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 18:12:52,868 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 18:12:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 18:12:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1994455620, now seen corresponding path program 1 times [2022-01-10 18:12:52,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 18:12:52,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845865251] [2022-01-10 18:12:52,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 18:12:52,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 18:12:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 18:12:53,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 18:12:53,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 18:12:53,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845865251] [2022-01-10 18:12:53,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845865251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 18:12:53,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 18:12:53,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 18:12:53,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000878459] [2022-01-10 18:12:53,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 18:12:53,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 18:12:53,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 18:12:53,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 18:12:53,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 18:12:53,022 INFO L87 Difference]: Start difference. First operand 41992 states and 71314 transitions. Second operand has 6 states, 6 states have (on average 21.5) internal successors, (129), 6 states have internal predecessors, (129), 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)