./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem05_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem05_label22.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d5ea394c0b09abd1912aaf20100487666ac0676ca7275499aa37ccfb34a37b4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 00:14:51,741 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 00:14:51,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 00:14:51,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 00:14:51,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 00:14:51,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 00:14:51,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 00:14:51,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 00:14:51,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 00:14:51,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 00:14:51,787 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 00:14:51,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 00:14:51,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 00:14:51,790 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 00:14:51,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 00:14:51,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 00:14:51,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 00:14:51,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 00:14:51,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 00:14:51,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 00:14:51,798 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 00:14:51,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 00:14:51,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 00:14:51,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 00:14:51,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 00:14:51,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 00:14:51,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 00:14:51,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 00:14:51,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 00:14:51,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 00:14:51,809 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 00:14:51,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 00:14:51,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 00:14:51,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 00:14:51,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 00:14:51,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 00:14:51,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 00:14:51,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 00:14:51,813 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 00:14:51,813 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 00:14:51,814 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 00:14:51,815 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 00:14:51,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 00:14:51,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 00:14:51,836 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 00:14:51,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 00:14:51,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 00:14:51,837 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 00:14:51,837 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 00:14:51,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 00:14:51,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 00:14:51,838 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 00:14:51,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 00:14:51,838 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 00:14:51,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 00:14:51,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 00:14:51,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 00:14:51,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 00:14:51,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 00:14:51,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 00:14:51,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 00:14:51,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 00:14:51,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 00:14:51,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 00:14:51,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 00:14:51,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d5ea394c0b09abd1912aaf20100487666ac0676ca7275499aa37ccfb34a37b4 [2022-07-12 00:14:52,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 00:14:52,044 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 00:14:52,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 00:14:52,058 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 00:14:52,059 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 00:14:52,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem05_label22.c [2022-07-12 00:14:52,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658b269d5/1e84cc2bb2874e7d9a4685a678bded5c/FLAG2c67af82f [2022-07-12 00:14:52,801 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 00:14:52,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label22.c [2022-07-12 00:14:52,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658b269d5/1e84cc2bb2874e7d9a4685a678bded5c/FLAG2c67af82f [2022-07-12 00:14:52,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/658b269d5/1e84cc2bb2874e7d9a4685a678bded5c [2022-07-12 00:14:52,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 00:14:52,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 00:14:52,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 00:14:52,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 00:14:52,863 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 00:14:52,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:14:52" (1/1) ... [2022-07-12 00:14:52,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a55cdce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:52, skipping insertion in model container [2022-07-12 00:14:52,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:14:52" (1/1) ... [2022-07-12 00:14:52,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 00:14:53,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 00:14:54,162 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label22.c[377946,377959] [2022-07-12 00:14:54,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 00:14:54,186 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 00:14:54,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label22.c[377946,377959] [2022-07-12 00:14:54,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 00:14:54,940 INFO L208 MainTranslator]: Completed translation [2022-07-12 00:14:54,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54 WrapperNode [2022-07-12 00:14:54,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 00:14:54,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 00:14:54,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 00:14:54,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 00:14:54,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,460 INFO L137 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346 [2022-07-12 00:14:55,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 00:14:55,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 00:14:55,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 00:14:55,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 00:14:55,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,547 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 00:14:55,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 00:14:55,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 00:14:55,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 00:14:55,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (1/1) ... [2022-07-12 00:14:55,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 00:14:55,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 00:14:55,865 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) [2022-07-12 00:14:55,959 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 [2022-07-12 00:14:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 00:14:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 00:14:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 00:14:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 00:14:56,048 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 00:14:56,049 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 00:15:00,895 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 00:15:00,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 00:15:00,910 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 00:15:00,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:15:00 BoogieIcfgContainer [2022-07-12 00:15:00,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 00:15:00,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 00:15:00,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 00:15:00,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 00:15:00,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:14:52" (1/3) ... [2022-07-12 00:15:00,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cb88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:15:00, skipping insertion in model container [2022-07-12 00:15:00,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:14:54" (2/3) ... [2022-07-12 00:15:00,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@323cb88a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:15:00, skipping insertion in model container [2022-07-12 00:15:00,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:15:00" (3/3) ... [2022-07-12 00:15:00,919 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label22.c [2022-07-12 00:15:00,928 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 00:15:00,928 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 00:15:01,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 00:15:01,027 INFO L357 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, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@63eaa3e6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@59d80ed5 [2022-07-12 00:15:01,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 00:15:01,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 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) [2022-07-12 00:15:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1661 [2022-07-12 00:15:01,161 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:01,175 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:01,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash -521009358, now seen corresponding path program 1 times [2022-07-12 00:15:01,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:01,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157026028] [2022-07-12 00:15:01,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:01,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:02,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 00:15:04,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:04,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157026028] [2022-07-12 00:15:04,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157026028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:04,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:04,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:04,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704318045] [2022-07-12 00:15:04,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:04,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:04,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:04,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:04,180 INFO L87 Difference]: Start difference. First operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 2 states have internal predecessors, (1660), 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) [2022-07-12 00:15:12,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:12,121 INFO L93 Difference]: Finished difference Result 6263 states and 11838 transitions. [2022-07-12 00:15:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:12,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 2 states have internal predecessors, (1660), 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 1660 [2022-07-12 00:15:12,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:12,176 INFO L225 Difference]: With dead ends: 6263 [2022-07-12 00:15:12,176 INFO L226 Difference]: Without dead ends: 4014 [2022-07-12 00:15:12,185 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:12,202 INFO L413 NwaCegarLoop]: 1397 mSDtfsCounter, 372 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 5307 mSolverCounterSat, 2416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 7723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2416 IncrementalHoareTripleChecker+Valid, 5307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:12,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1623 Invalid, 7723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2416 Valid, 5307 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-07-12 00:15:12,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4014 states. [2022-07-12 00:15:12,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4014 to 3931. [2022-07-12 00:15:12,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3930 states have (on average 1.7063613231552164) internal successors, (6706), 3930 states have internal predecessors, (6706), 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) [2022-07-12 00:15:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6706 transitions. [2022-07-12 00:15:12,418 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6706 transitions. Word has length 1660 [2022-07-12 00:15:12,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:12,422 INFO L495 AbstractCegarLoop]: Abstraction has 3931 states and 6706 transitions. [2022-07-12 00:15:12,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.3333333333334) internal successors, (1660), 2 states have internal predecessors, (1660), 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) [2022-07-12 00:15:12,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6706 transitions. [2022-07-12 00:15:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1669 [2022-07-12 00:15:12,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:12,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:12,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 00:15:12,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:12,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:12,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1853868444, now seen corresponding path program 1 times [2022-07-12 00:15:12,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:12,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464753453] [2022-07-12 00:15:12,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:12,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:13,877 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 00:15:13,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:13,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464753453] [2022-07-12 00:15:13,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464753453] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:13,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:13,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:13,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401603649] [2022-07-12 00:15:13,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:13,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:13,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:13,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:13,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:13,884 INFO L87 Difference]: Start difference. First operand 3931 states and 6706 transitions. Second operand has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 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) [2022-07-12 00:15:21,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:21,090 INFO L93 Difference]: Finished difference Result 11291 states and 19411 transitions. [2022-07-12 00:15:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:21,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 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 1668 [2022-07-12 00:15:21,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:21,138 INFO L225 Difference]: With dead ends: 11291 [2022-07-12 00:15:21,138 INFO L226 Difference]: Without dead ends: 7362 [2022-07-12 00:15:21,170 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:21,172 INFO L413 NwaCegarLoop]: 1826 mSDtfsCounter, 2355 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 4839 mSolverCounterSat, 2060 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2355 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 6899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2060 IncrementalHoareTripleChecker+Valid, 4839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:21,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2355 Valid, 2022 Invalid, 6899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2060 Valid, 4839 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-12 00:15:21,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7362 states. [2022-07-12 00:15:21,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7362 to 7361. [2022-07-12 00:15:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 7360 states have (on average 1.5313858695652174) internal successors, (11271), 7360 states have internal predecessors, (11271), 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) [2022-07-12 00:15:21,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 11271 transitions. [2022-07-12 00:15:21,436 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 11271 transitions. Word has length 1668 [2022-07-12 00:15:21,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:21,438 INFO L495 AbstractCegarLoop]: Abstraction has 7361 states and 11271 transitions. [2022-07-12 00:15:21,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 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) [2022-07-12 00:15:21,440 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 11271 transitions. [2022-07-12 00:15:21,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1689 [2022-07-12 00:15:21,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:21,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:21,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 00:15:21,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:21,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1278956068, now seen corresponding path program 1 times [2022-07-12 00:15:21,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:21,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047233645] [2022-07-12 00:15:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:21,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:22,676 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 00:15:22,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:22,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047233645] [2022-07-12 00:15:22,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047233645] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:22,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:22,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:22,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887305557] [2022-07-12 00:15:22,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:22,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:22,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:22,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:22,682 INFO L87 Difference]: Start difference. First operand 7361 states and 11271 transitions. Second operand has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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) [2022-07-12 00:15:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:27,546 INFO L93 Difference]: Finished difference Result 18117 states and 27085 transitions. [2022-07-12 00:15:27,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:27,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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 1688 [2022-07-12 00:15:27,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:27,607 INFO L225 Difference]: With dead ends: 18117 [2022-07-12 00:15:27,623 INFO L226 Difference]: Without dead ends: 10758 [2022-07-12 00:15:27,634 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:27,639 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 3171 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 4773 mSolverCounterSat, 1208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 5981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1208 IncrementalHoareTripleChecker+Valid, 4773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:27,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 1164 Invalid, 5981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1208 Valid, 4773 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 00:15:27,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10758 states. [2022-07-12 00:15:27,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10758 to 10758. [2022-07-12 00:15:27,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10758 states, 10757 states have (on average 1.3355954262340801) internal successors, (14367), 10757 states have internal predecessors, (14367), 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) [2022-07-12 00:15:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10758 states to 10758 states and 14367 transitions. [2022-07-12 00:15:28,006 INFO L78 Accepts]: Start accepts. Automaton has 10758 states and 14367 transitions. Word has length 1688 [2022-07-12 00:15:28,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:28,007 INFO L495 AbstractCegarLoop]: Abstraction has 10758 states and 14367 transitions. [2022-07-12 00:15:28,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 562.6666666666666) internal successors, (1688), 2 states have internal predecessors, (1688), 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) [2022-07-12 00:15:28,008 INFO L276 IsEmpty]: Start isEmpty. Operand 10758 states and 14367 transitions. [2022-07-12 00:15:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2022-07-12 00:15:28,087 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:28,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:28,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 00:15:28,089 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:28,090 INFO L85 PathProgramCache]: Analyzing trace with hash 727924457, now seen corresponding path program 1 times [2022-07-12 00:15:28,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:28,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729239136] [2022-07-12 00:15:28,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:28,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:28,979 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 00:15:28,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:28,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729239136] [2022-07-12 00:15:28,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729239136] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:28,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:28,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:28,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715585513] [2022-07-12 00:15:28,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:28,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:28,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:28,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:28,984 INFO L87 Difference]: Start difference. First operand 10758 states and 14367 transitions. Second operand has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 2 states have internal predecessors, (1696), 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) [2022-07-12 00:15:34,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:34,521 INFO L93 Difference]: Finished difference Result 31738 states and 42394 transitions. [2022-07-12 00:15:34,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:34,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 2 states have internal predecessors, (1696), 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 1696 [2022-07-12 00:15:34,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:34,599 INFO L225 Difference]: With dead ends: 31738 [2022-07-12 00:15:34,611 INFO L226 Difference]: Without dead ends: 20982 [2022-07-12 00:15:34,620 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:34,640 INFO L413 NwaCegarLoop]: 1241 mSDtfsCounter, 2223 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4946 mSolverCounterSat, 2574 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 7520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2574 IncrementalHoareTripleChecker+Valid, 4946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:34,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 1390 Invalid, 7520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2574 Valid, 4946 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 00:15:34,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20982 states. [2022-07-12 00:15:35,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20982 to 20965. [2022-07-12 00:15:35,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20965 states, 20964 states have (on average 1.2765216561724861) internal successors, (26761), 20964 states have internal predecessors, (26761), 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) [2022-07-12 00:15:35,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20965 states to 20965 states and 26761 transitions. [2022-07-12 00:15:35,159 INFO L78 Accepts]: Start accepts. Automaton has 20965 states and 26761 transitions. Word has length 1696 [2022-07-12 00:15:35,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:35,160 INFO L495 AbstractCegarLoop]: Abstraction has 20965 states and 26761 transitions. [2022-07-12 00:15:35,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 2 states have internal predecessors, (1696), 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) [2022-07-12 00:15:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 20965 states and 26761 transitions. [2022-07-12 00:15:35,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1770 [2022-07-12 00:15:35,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:35,252 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:35,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 00:15:35,253 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:35,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:35,254 INFO L85 PathProgramCache]: Analyzing trace with hash 372888932, now seen corresponding path program 1 times [2022-07-12 00:15:35,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:35,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296660126] [2022-07-12 00:15:35,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:35,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:36,960 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 00:15:36,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:36,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296660126] [2022-07-12 00:15:36,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296660126] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:36,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:36,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:15:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241129649] [2022-07-12 00:15:36,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:36,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:36,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:36,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:36,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:36,977 INFO L87 Difference]: Start difference. First operand 20965 states and 26761 transitions. Second operand has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 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) [2022-07-12 00:15:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:42,783 INFO L93 Difference]: Finished difference Result 52218 states and 67380 transitions. [2022-07-12 00:15:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:42,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 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 1769 [2022-07-12 00:15:42,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:42,881 INFO L225 Difference]: With dead ends: 52218 [2022-07-12 00:15:42,882 INFO L226 Difference]: Without dead ends: 31255 [2022-07-12 00:15:42,919 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:42,924 INFO L413 NwaCegarLoop]: 1223 mSDtfsCounter, 427 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5363 mSolverCounterSat, 2489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 7852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2489 IncrementalHoareTripleChecker+Valid, 5363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:42,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 1388 Invalid, 7852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2489 Valid, 5363 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 00:15:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31255 states. [2022-07-12 00:15:43,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31255 to 31164. [2022-07-12 00:15:43,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31164 states, 31163 states have (on average 1.276096653082181) internal successors, (39767), 31163 states have internal predecessors, (39767), 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) [2022-07-12 00:15:43,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31164 states to 31164 states and 39767 transitions. [2022-07-12 00:15:43,650 INFO L78 Accepts]: Start accepts. Automaton has 31164 states and 39767 transitions. Word has length 1769 [2022-07-12 00:15:43,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:43,652 INFO L495 AbstractCegarLoop]: Abstraction has 31164 states and 39767 transitions. [2022-07-12 00:15:43,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.6666666666666) internal successors, (1769), 3 states have internal predecessors, (1769), 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) [2022-07-12 00:15:43,656 INFO L276 IsEmpty]: Start isEmpty. Operand 31164 states and 39767 transitions. [2022-07-12 00:15:43,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1850 [2022-07-12 00:15:43,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:43,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:43,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 00:15:43,776 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:43,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:43,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1136229168, now seen corresponding path program 1 times [2022-07-12 00:15:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:43,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970655319] [2022-07-12 00:15:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:43,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-07-12 00:15:44,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:44,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970655319] [2022-07-12 00:15:44,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970655319] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:44,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:44,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:44,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765236687] [2022-07-12 00:15:44,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:44,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:44,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:44,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:44,590 INFO L87 Difference]: Start difference. First operand 31164 states and 39767 transitions. Second operand has 3 states, 3 states have (on average 577.0) internal successors, (1731), 2 states have internal predecessors, (1731), 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) [2022-07-12 00:15:50,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:50,026 INFO L93 Difference]: Finished difference Result 92896 states and 118529 transitions. [2022-07-12 00:15:50,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:50,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 577.0) internal successors, (1731), 2 states have internal predecessors, (1731), 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 1849 [2022-07-12 00:15:50,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:15:50,181 INFO L225 Difference]: With dead ends: 92896 [2022-07-12 00:15:50,187 INFO L226 Difference]: Without dead ends: 61734 [2022-07-12 00:15:50,256 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:15:50,257 INFO L413 NwaCegarLoop]: 2031 mSDtfsCounter, 1787 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 5783 mSolverCounterSat, 1400 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1787 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 7183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 5783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-12 00:15:50,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1787 Valid, 2326 Invalid, 7183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1400 Valid, 5783 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-12 00:15:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61734 states. [2022-07-12 00:15:51,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61734 to 61726. [2022-07-12 00:15:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61726 states, 61725 states have (on average 1.191737545565006) internal successors, (73560), 61725 states have internal predecessors, (73560), 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) [2022-07-12 00:15:52,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61726 states to 61726 states and 73560 transitions. [2022-07-12 00:15:52,139 INFO L78 Accepts]: Start accepts. Automaton has 61726 states and 73560 transitions. Word has length 1849 [2022-07-12 00:15:52,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:15:52,140 INFO L495 AbstractCegarLoop]: Abstraction has 61726 states and 73560 transitions. [2022-07-12 00:15:52,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 577.0) internal successors, (1731), 2 states have internal predecessors, (1731), 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) [2022-07-12 00:15:52,141 INFO L276 IsEmpty]: Start isEmpty. Operand 61726 states and 73560 transitions. [2022-07-12 00:15:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1886 [2022-07-12 00:15:52,299 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:15:52,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:15:52,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 00:15:52,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:15:52,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:15:52,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1792320817, now seen corresponding path program 1 times [2022-07-12 00:15:52,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:15:52,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703954918] [2022-07-12 00:15:52,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:15:52,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:15:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:15:53,311 INFO L134 CoverageAnalysis]: Checked inductivity of 329 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-07-12 00:15:53,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:15:53,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703954918] [2022-07-12 00:15:53,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703954918] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:15:53,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:15:53,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:15:53,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834258159] [2022-07-12 00:15:53,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:15:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:15:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:15:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:15:53,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:15:53,331 INFO L87 Difference]: Start difference. First operand 61726 states and 73560 transitions. Second operand has 3 states, 3 states have (on average 589.0) internal successors, (1767), 2 states have internal predecessors, (1767), 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) [2022-07-12 00:15:59,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:15:59,676 INFO L93 Difference]: Finished difference Result 177789 states and 212424 transitions. [2022-07-12 00:15:59,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:15:59,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 2 states have internal predecessors, (1767), 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 1885 [2022-07-12 00:15:59,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:16:00,253 INFO L225 Difference]: With dead ends: 177789 [2022-07-12 00:16:00,254 INFO L226 Difference]: Without dead ends: 116065 [2022-07-12 00:16:00,350 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:16:00,351 INFO L413 NwaCegarLoop]: 1701 mSDtfsCounter, 2419 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4494 mSolverCounterSat, 2361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 1839 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2361 IncrementalHoareTripleChecker+Valid, 4494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-07-12 00:16:00,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2419 Valid, 1839 Invalid, 6855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2361 Valid, 4494 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-07-12 00:16:00,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116065 states. [2022-07-12 00:16:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116065 to 104166. [2022-07-12 00:16:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104166 states, 104165 states have (on average 1.1523928382854125) internal successors, (120039), 104165 states have internal predecessors, (120039), 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) [2022-07-12 00:16:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104166 states to 104166 states and 120039 transitions. [2022-07-12 00:16:02,507 INFO L78 Accepts]: Start accepts. Automaton has 104166 states and 120039 transitions. Word has length 1885 [2022-07-12 00:16:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:16:02,508 INFO L495 AbstractCegarLoop]: Abstraction has 104166 states and 120039 transitions. [2022-07-12 00:16:02,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 589.0) internal successors, (1767), 2 states have internal predecessors, (1767), 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) [2022-07-12 00:16:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 104166 states and 120039 transitions. [2022-07-12 00:16:02,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1902 [2022-07-12 00:16:02,702 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:16:02,703 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:16:02,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 00:16:02,720 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:16:02,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:16:02,721 INFO L85 PathProgramCache]: Analyzing trace with hash 454101112, now seen corresponding path program 1 times [2022-07-12 00:16:02,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:16:02,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332207212] [2022-07-12 00:16:02,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:16:02,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:16:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:16:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 423 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-12 00:16:03,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:16:03,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332207212] [2022-07-12 00:16:03,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332207212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:16:03,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:16:03,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:16:03,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651243359] [2022-07-12 00:16:03,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:16:03,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:16:03,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:16:03,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:16:03,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:03,892 INFO L87 Difference]: Start difference. First operand 104166 states and 120039 transitions. Second operand has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 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) [2022-07-12 00:16:10,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:16:10,031 INFO L93 Difference]: Finished difference Result 257580 states and 299153 transitions. [2022-07-12 00:16:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:16:10,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 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 1901 [2022-07-12 00:16:10,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:16:10,559 INFO L225 Difference]: With dead ends: 257580 [2022-07-12 00:16:10,559 INFO L226 Difference]: Without dead ends: 153416 [2022-07-12 00:16:10,679 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:16:10,680 INFO L413 NwaCegarLoop]: 3604 mSDtfsCounter, 2069 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 4776 mSolverCounterSat, 2201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 6977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2201 IncrementalHoareTripleChecker+Valid, 4776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 00:16:10,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 3837 Invalid, 6977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2201 Valid, 4776 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 00:16:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153416 states. [2022-07-12 00:16:12,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153416 to 148312. [2022-07-12 00:16:12,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148312 states, 148311 states have (on average 1.1257492701148262) internal successors, (166961), 148311 states have internal predecessors, (166961), 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) [2022-07-12 00:16:13,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148312 states to 148312 states and 166961 transitions. [2022-07-12 00:16:13,162 INFO L78 Accepts]: Start accepts. Automaton has 148312 states and 166961 transitions. Word has length 1901 [2022-07-12 00:16:13,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:16:13,163 INFO L495 AbstractCegarLoop]: Abstraction has 148312 states and 166961 transitions. [2022-07-12 00:16:13,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 584.0) internal successors, (1752), 3 states have internal predecessors, (1752), 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) [2022-07-12 00:16:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 148312 states and 166961 transitions. [2022-07-12 00:16:13,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2031 [2022-07-12 00:16:13,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:16:13,374 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:16:13,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 00:16:13,374 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:16:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:16:13,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1013995160, now seen corresponding path program 1 times [2022-07-12 00:16:13,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:16:13,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426186995] [2022-07-12 00:16:13,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:16:13,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:16:13,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:16:14,969 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 641 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-12 00:16:14,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:16:14,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426186995] [2022-07-12 00:16:14,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426186995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:16:14,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:16:14,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:16:14,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993848907] [2022-07-12 00:16:14,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:16:14,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:16:14,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:16:14,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:16:14,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:14,979 INFO L87 Difference]: Start difference. First operand 148312 states and 166961 transitions. Second operand has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 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) [2022-07-12 00:16:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:16:21,433 INFO L93 Difference]: Finished difference Result 301795 states and 339213 transitions. [2022-07-12 00:16:21,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:16:21,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 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 2030 [2022-07-12 00:16:21,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:16:21,655 INFO L225 Difference]: With dead ends: 301795 [2022-07-12 00:16:21,656 INFO L226 Difference]: Without dead ends: 151772 [2022-07-12 00:16:21,714 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:16:21,716 INFO L413 NwaCegarLoop]: 3963 mSDtfsCounter, 1759 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 6279 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 4184 SdHoareTripleChecker+Invalid, 7171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 6279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-07-12 00:16:21,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 4184 Invalid, 7171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 6279 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-07-12 00:16:21,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151772 states. [2022-07-12 00:16:23,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151772 to 151702. [2022-07-12 00:16:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151702 states, 151701 states have (on average 1.1041720225970824) internal successors, (167504), 151701 states have internal predecessors, (167504), 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) [2022-07-12 00:16:23,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151702 states to 151702 states and 167504 transitions. [2022-07-12 00:16:23,999 INFO L78 Accepts]: Start accepts. Automaton has 151702 states and 167504 transitions. Word has length 2030 [2022-07-12 00:16:24,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:16:24,002 INFO L495 AbstractCegarLoop]: Abstraction has 151702 states and 167504 transitions. [2022-07-12 00:16:24,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 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) [2022-07-12 00:16:24,003 INFO L276 IsEmpty]: Start isEmpty. Operand 151702 states and 167504 transitions. [2022-07-12 00:16:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2071 [2022-07-12 00:16:24,159 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:16:24,160 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:16:24,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 00:16:24,161 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:16:24,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:16:24,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1616351821, now seen corresponding path program 1 times [2022-07-12 00:16:24,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:16:24,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742663744] [2022-07-12 00:16:24,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:16:24,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:16:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:16:26,261 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 697 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-12 00:16:26,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:16:26,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742663744] [2022-07-12 00:16:26,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742663744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:16:26,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:16:26,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:16:26,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617004111] [2022-07-12 00:16:26,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:16:26,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:16:26,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:16:26,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:16:26,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:26,265 INFO L87 Difference]: Start difference. First operand 151702 states and 167504 transitions. Second operand has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 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) [2022-07-12 00:16:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:16:33,368 INFO L93 Difference]: Finished difference Result 361148 states and 397747 transitions. [2022-07-12 00:16:33,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:16:33,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 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 2070 [2022-07-12 00:16:33,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:16:33,726 INFO L225 Difference]: With dead ends: 361148 [2022-07-12 00:16:33,727 INFO L226 Difference]: Without dead ends: 209447 [2022-07-12 00:16:33,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:33,810 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 2111 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 5077 mSolverCounterSat, 2130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 1057 SdHoareTripleChecker+Invalid, 7207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2130 IncrementalHoareTripleChecker+Valid, 5077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-07-12 00:16:33,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 1057 Invalid, 7207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2130 Valid, 5077 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-07-12 00:16:33,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209447 states. [2022-07-12 00:16:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209447 to 202635. [2022-07-12 00:16:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202635 states, 202634 states have (on average 1.0900194439235271) internal successors, (220875), 202634 states have internal predecessors, (220875), 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) [2022-07-12 00:16:36,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202635 states to 202635 states and 220875 transitions. [2022-07-12 00:16:36,634 INFO L78 Accepts]: Start accepts. Automaton has 202635 states and 220875 transitions. Word has length 2070 [2022-07-12 00:16:36,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:16:36,635 INFO L495 AbstractCegarLoop]: Abstraction has 202635 states and 220875 transitions. [2022-07-12 00:16:36,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 639.3333333333334) internal successors, (1918), 3 states have internal predecessors, (1918), 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) [2022-07-12 00:16:36,636 INFO L276 IsEmpty]: Start isEmpty. Operand 202635 states and 220875 transitions. [2022-07-12 00:16:37,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2136 [2022-07-12 00:16:37,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:16:37,605 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:16:37,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 00:16:37,606 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:16:37,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:16:37,607 INFO L85 PathProgramCache]: Analyzing trace with hash 2124515219, now seen corresponding path program 1 times [2022-07-12 00:16:37,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:16:37,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455487540] [2022-07-12 00:16:37,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:16:37,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:16:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:16:39,023 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-12 00:16:39,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:16:39,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455487540] [2022-07-12 00:16:39,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455487540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:16:39,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:16:39,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:16:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308011661] [2022-07-12 00:16:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:16:39,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:16:39,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:16:39,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:16:39,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:39,033 INFO L87 Difference]: Start difference. First operand 202635 states and 220875 transitions. Second operand has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 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) [2022-07-12 00:16:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:16:49,064 INFO L93 Difference]: Finished difference Result 412066 states and 448623 transitions. [2022-07-12 00:16:49,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:16:49,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 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 2135 [2022-07-12 00:16:49,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:16:49,414 INFO L225 Difference]: With dead ends: 412066 [2022-07-12 00:16:49,414 INFO L226 Difference]: Without dead ends: 206023 [2022-07-12 00:16:49,521 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:16:49,522 INFO L413 NwaCegarLoop]: 2854 mSDtfsCounter, 2183 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 4835 mSolverCounterSat, 1516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 2959 SdHoareTripleChecker+Invalid, 6351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1516 IncrementalHoareTripleChecker+Valid, 4835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-07-12 00:16:49,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 2959 Invalid, 6351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1516 Valid, 4835 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-07-12 00:16:49,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206023 states. [2022-07-12 00:16:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206023 to 200922. [2022-07-12 00:16:52,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200922 states, 200921 states have (on average 1.0712767704719766) internal successors, (215242), 200921 states have internal predecessors, (215242), 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) [2022-07-12 00:16:52,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200922 states to 200922 states and 215242 transitions. [2022-07-12 00:16:52,540 INFO L78 Accepts]: Start accepts. Automaton has 200922 states and 215242 transitions. Word has length 2135 [2022-07-12 00:16:52,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:16:52,541 INFO L495 AbstractCegarLoop]: Abstraction has 200922 states and 215242 transitions. [2022-07-12 00:16:52,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 700.3333333333334) internal successors, (2101), 3 states have internal predecessors, (2101), 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) [2022-07-12 00:16:52,542 INFO L276 IsEmpty]: Start isEmpty. Operand 200922 states and 215242 transitions. [2022-07-12 00:16:52,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2221 [2022-07-12 00:16:52,746 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:16:52,747 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:16:52,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 00:16:52,748 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:16:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:16:52,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1649706356, now seen corresponding path program 1 times [2022-07-12 00:16:52,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:16:52,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758928079] [2022-07-12 00:16:52,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:16:52,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:16:53,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:16:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 557 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-07-12 00:16:54,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:16:54,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758928079] [2022-07-12 00:16:54,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758928079] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:16:54,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:16:54,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 00:16:54,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683073262] [2022-07-12 00:16:54,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:16:54,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:16:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:16:54,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:16:54,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:16:54,172 INFO L87 Difference]: Start difference. First operand 200922 states and 215242 transitions. Second operand has 3 states, 3 states have (on average 700.6666666666666) internal successors, (2102), 2 states have internal predecessors, (2102), 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) [2022-07-12 00:17:00,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:17:00,856 INFO L93 Difference]: Finished difference Result 435806 states and 466296 transitions. [2022-07-12 00:17:00,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:17:00,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 700.6666666666666) internal successors, (2102), 2 states have internal predecessors, (2102), 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 2220 [2022-07-12 00:17:00,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 00:17:01,295 INFO L225 Difference]: With dead ends: 435806 [2022-07-12 00:17:01,296 INFO L226 Difference]: Without dead ends: 233148 [2022-07-12 00:17:01,409 INFO L412 NwaCegarLoop]: 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 [2022-07-12 00:17:01,410 INFO L413 NwaCegarLoop]: 1862 mSDtfsCounter, 1682 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 1302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 5766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1302 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-12 00:17:01,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 2037 Invalid, 5766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1302 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-12 00:17:01,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233148 states. [2022-07-12 00:17:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233148 to 226355. [2022-07-12 00:17:04,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226355 states, 226354 states have (on average 1.036650556208417) internal successors, (234650), 226354 states have internal predecessors, (234650), 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) [2022-07-12 00:17:04,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226355 states to 226355 states and 234650 transitions. [2022-07-12 00:17:04,452 INFO L78 Accepts]: Start accepts. Automaton has 226355 states and 234650 transitions. Word has length 2220 [2022-07-12 00:17:04,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 00:17:04,452 INFO L495 AbstractCegarLoop]: Abstraction has 226355 states and 234650 transitions. [2022-07-12 00:17:04,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 700.6666666666666) internal successors, (2102), 2 states have internal predecessors, (2102), 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) [2022-07-12 00:17:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 226355 states and 234650 transitions. [2022-07-12 00:17:04,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2225 [2022-07-12 00:17:04,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 00:17:04,616 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 00:17:04,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 00:17:04,616 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 00:17:04,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 00:17:04,617 INFO L85 PathProgramCache]: Analyzing trace with hash -59990687, now seen corresponding path program 1 times [2022-07-12 00:17:04,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 00:17:04,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065175972] [2022-07-12 00:17:04,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 00:17:04,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 00:17:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 00:17:06,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 638 proven. 0 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-07-12 00:17:06,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 00:17:06,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065175972] [2022-07-12 00:17:06,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065175972] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 00:17:06,058 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 00:17:06,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 00:17:06,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571631503] [2022-07-12 00:17:06,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 00:17:06,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 00:17:06,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 00:17:06,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 00:17:06,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 00:17:06,061 INFO L87 Difference]: Start difference. First operand 226355 states and 234650 transitions. Second operand has 3 states, 3 states have (on average 646.6666666666666) internal successors, (1940), 3 states have internal predecessors, (1940), 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) [2022-07-12 00:17:10,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 00:17:10,679 INFO L93 Difference]: Finished difference Result 510508 states and 528964 transitions. [2022-07-12 00:17:10,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 00:17:10,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 646.6666666666666) internal successors, (1940), 3 states have internal predecessors, (1940), 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 2224 [2022-07-12 00:17:10,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.