./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a5e4c58569d8caa47946d30f6cb501096837aef1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:14:44,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:14:44,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:14:44,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:14:44,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:14:44,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:14:44,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:14:44,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:14:44,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:14:44,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:14:44,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:14:44,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:14:44,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:14:44,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:14:44,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:14:44,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:14:44,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:14:44,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:14:44,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:14:44,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:14:44,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:14:44,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:14:44,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:14:44,738 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:14:44,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:14:44,746 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:14:44,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:14:44,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:14:44,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:14:44,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:14:44,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:14:44,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:14:44,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:14:44,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:14:44,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:14:44,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:14:44,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:14:44,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:14:44,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:14:44,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:14:44,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:14:44,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:14:44,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:14:44,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:14:44,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:14:44,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:14:44,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:14:44,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:14:44,822 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:14:44,823 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:14:44,823 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:14:44,823 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:14:44,824 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:14:44,825 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:14:44,825 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:14:44,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:14:44,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:14:44,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:14:44,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:14:44,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:14:44,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:14:44,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:14:44,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:14:44,827 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:14:44,827 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:14:44,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:14:44,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:14:44,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:14:44,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:14:44,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:14:44,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:14:44,832 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:14:44,832 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5e4c58569d8caa47946d30f6cb501096837aef1 [2021-10-13 00:14:45,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:14:45,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:14:45,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:14:45,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:14:45,164 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:14:45,165 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-13 00:14:45,231 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/data/44d18a669/0581c296a7834e1f8f4fc0ef72a10135/FLAGe9c32eb3a [2021-10-13 00:14:45,723 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:14:45,723 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-13 00:14:45,738 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/data/44d18a669/0581c296a7834e1f8f4fc0ef72a10135/FLAGe9c32eb3a [2021-10-13 00:14:46,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/data/44d18a669/0581c296a7834e1f8f4fc0ef72a10135 [2021-10-13 00:14:46,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:14:46,133 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:14:46,135 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:46,135 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:14:46,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:14:46,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52136771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46, skipping insertion in model container [2021-10-13 00:14:46,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:14:46,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:14:46,298 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:46,302 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:14:46,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:14:46,332 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:14:46,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46 WrapperNode [2021-10-13 00:14:46,333 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:14:46,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:46,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:14:46,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:14:46,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,368 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:14:46,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:14:46,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:14:46,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:14:46,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:14:46,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:14:46,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:14:46,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:14:46,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (1/1) ... [2021-10-13 00:14:46,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:46,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:46,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:46,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:14:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:14:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:14:46,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:14:46,660 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 00:14:46,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:46 BoogieIcfgContainer [2021-10-13 00:14:46,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:14:46,663 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:14:46,663 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:14:46,667 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:14:46,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:46,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:14:46" (1/3) ... [2021-10-13 00:14:46,670 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38608972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:46, skipping insertion in model container [2021-10-13 00:14:46,670 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:46,670 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:14:46" (2/3) ... [2021-10-13 00:14:46,671 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@38608972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:14:46, skipping insertion in model container [2021-10-13 00:14:46,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:14:46,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:46" (3/3) ... [2021-10-13 00:14:46,673 INFO L389 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2021-10-13 00:14:46,724 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:14:46,724 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:14:46,724 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:14:46,724 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:14:46,725 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:14:46,725 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:14:46,725 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:14:46,725 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:14:46,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:14:46,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:46,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:46,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:46,769 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:14:46,769 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:46,769 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:14:46,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:14:46,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:46,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:46,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:46,772 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:14:46,772 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:46,779 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 3#L12-2true [2021-10-13 00:14:46,779 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~c~0 > 0); 8#L12true assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 3#L12-2true [2021-10-13 00:14:46,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:46,789 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 00:14:46,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:46,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557754722] [2021-10-13 00:14:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:46,807 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,870 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,889 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:46,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:46,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-13 00:14:46,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:46,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140284958] [2021-10-13 00:14:46,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:46,893 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,906 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,912 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:46,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:46,914 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-13 00:14:46,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:46,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701700278] [2021-10-13 00:14:46,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:46,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,925 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:46,932 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:47,010 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:47,011 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:47,011 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:47,011 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:47,012 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:47,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:47,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:47,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-13 00:14:47,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:47,013 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:47,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:47,259 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:47,261 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,264 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:47,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:47,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:14:47,316 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:47,316 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:47,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:47,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:47,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:14:47,381 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:47,381 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:47,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,408 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,409 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:14:47,421 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:47,421 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:47,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,460 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:14:47,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:47,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:47,510 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:47,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,523 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:47,523 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:47,523 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:47,523 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:47,523 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:47,523 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:47,524 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:47,524 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-13 00:14:47,524 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:47,524 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:47,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:47,653 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:47,657 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:47,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:14:47,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:47,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:47,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:47,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:47,689 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:47,695 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:47,695 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:47,706 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:47,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,744 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:14:47,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:47,758 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:47,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:47,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:47,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:47,763 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:47,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:47,781 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:47,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,815 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:14:47,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:47,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:47,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:47,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:47,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:47,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:47,829 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:47,829 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:47,857 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:47,861 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:47,861 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:14:47,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:47,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:47,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:47,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:14:47,891 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:47,891 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:47,891 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:47,892 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:14:47,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:47,917 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:47,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:47,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:47,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:47,964 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:47,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:47,991 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:14:47,992 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-13 00:14:48,028 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 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 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-10-13 00:14:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:48,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-13 00:14:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-13 00:14:48,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 00:14:48,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:14:48,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 00:14:48,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-13 00:14:48,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:48,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-13 00:14:48,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 00:14:48,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-13 00:14:48,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-13 00:14:48,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:48,043 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:14:48,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-13 00:14:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-13 00:14:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-13 00:14:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 00:14:48,069 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:14:48,069 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:14:48,069 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:14:48,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-13 00:14:48,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:48,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:48,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:48,071 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-13 00:14:48,071 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:48,071 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 69#L12-2 assume !!(main_~c~0 > 0); 67#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 63#L12-2 [2021-10-13 00:14:48,071 INFO L793 eck$LassoCheckResult]: Loop: 63#L12-2 assume !!(main_~c~0 > 0); 64#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 63#L12-2 [2021-10-13 00:14:48,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,071 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-13 00:14:48,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635220566] [2021-10-13 00:14:48,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,079 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,085 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-13 00:14:48,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267395817] [2021-10-13 00:14:48,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,087 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,092 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,096 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,097 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-13 00:14:48,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048800128] [2021-10-13 00:14:48,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,106 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,143 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:48,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:48,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:48,144 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:48,144 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:48,144 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,144 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:48,144 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:48,144 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-13 00:14:48,144 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:48,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:48,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,233 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:48,234 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:48,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,237 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:48,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:48,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:14:48,265 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:48,265 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:48,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,291 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,292 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:14:48,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:48,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:48,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,338 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:14:48,345 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:48,345 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:48,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:48,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,412 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:48,412 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:48,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:48,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:48,412 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:48,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:48,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:48,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-13 00:14:48,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:48,413 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:48,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,506 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:48,506 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:48,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,509 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:48,579 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:48,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:48,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:48,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:48,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:48,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:48,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:14:48,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:48,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:48,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:48,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:48,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:48,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:48,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:48,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:48,667 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:48,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:14:48,684 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:48,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:48,689 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:14:48,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:48,690 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:48,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:14:48,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:48,692 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:48,692 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:48,692 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-13 00:14:48,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:48,728 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:48,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:48,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:48,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:48,778 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:48,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:48,810 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:14:48,810 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 00:14:48,825 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-13 00:14:48,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:48,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-10-13 00:14:48,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 00:14:48,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:14:48,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:14:48,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-13 00:14:48,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:48,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-13 00:14:48,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:48,830 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-13 00:14:48,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 00:14:48,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:14:48,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-13 00:14:48,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:48,831 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 00:14:48,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-13 00:14:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-13 00:14:48,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 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) [2021-10-13 00:14:48,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-13 00:14:48,833 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 00:14:48,833 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-13 00:14:48,833 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:14:48,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-13 00:14:48,834 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 00:14:48,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:48,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:48,835 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 00:14:48,835 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:48,835 INFO L791 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 123#L12-2 assume !!(main_~c~0 > 0); 121#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 124#L12-2 assume !!(main_~c~0 > 0); 125#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 117#L12-2 [2021-10-13 00:14:48,835 INFO L793 eck$LassoCheckResult]: Loop: 117#L12-2 assume !!(main_~c~0 > 0); 118#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 117#L12-2 [2021-10-13 00:14:48,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,836 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-13 00:14:48,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880546712] [2021-10-13 00:14:48,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,842 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,857 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-13 00:14:48,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627942634] [2021-10-13 00:14:48,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,870 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,874 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:48,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-10-13 00:14:48,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:48,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041756662] [2021-10-13 00:14:48,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:48,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,885 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:48,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:48,900 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:48,948 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:48,948 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:48,948 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:48,948 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:48,948 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:48,948 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:48,949 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:48,949 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:48,949 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-13 00:14:48,950 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:48,950 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:48,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:48,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,038 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:49,038 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:49,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,050 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:49,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:49,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:14:49,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,100 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,101 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:14:49,103 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:49,103 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:49,140 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:49,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,146 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:49,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:49,146 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:49,146 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:49,147 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:49,147 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,147 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:49,147 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:49,147 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-13 00:14:49,147 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:49,147 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:49,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,227 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:49,227 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:49,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,228 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:14:49,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:49,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:49,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:49,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:49,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:49,251 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:49,252 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:49,253 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:49,268 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:49,272 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:14:49,272 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:49,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,275 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,280 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:49,280 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:49,280 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:49,280 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:14:49,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:14:49,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,321 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,369 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:49,382 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:14:49,382 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,402 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-13 00:14:49,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 00:14:49,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:14:49,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:49,407 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,457 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:49,465 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:14:49,466 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,476 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-13 00:14:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-13 00:14:49,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:14:49,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:49,478 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:49,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,499 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:49,518 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:49,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:49,527 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:14:49,527 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,543 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-10-13 00:14:49,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:49,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 00:14:49,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-13 00:14:49,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:49,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-13 00:14:49,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:49,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-13 00:14:49,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:49,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-13 00:14:49,554 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:14:49,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-13 00:14:49,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-13 00:14:49,556 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:14:49,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-13 00:14:49,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:49,556 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-13 00:14:49,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-13 00:14:49,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-13 00:14:49,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-13 00:14:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-13 00:14:49,560 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-13 00:14:49,560 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-13 00:14:49,560 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:14:49,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-10-13 00:14:49,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:14:49,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:49,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:49,563 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 00:14:49,563 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:49,563 INFO L791 eck$LassoCheckResult]: Stem: 265#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 261#L12-2 [2021-10-13 00:14:49,563 INFO L793 eck$LassoCheckResult]: Loop: 261#L12-2 assume !!(main_~c~0 > 0); 263#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 261#L12-2 [2021-10-13 00:14:49,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,564 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-13 00:14:49,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:49,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184211312] [2021-10-13 00:14:49,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:49,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,579 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,590 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-10-13 00:14:49,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:49,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607588314] [2021-10-13 00:14:49,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:49,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:49,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,632 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,652 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:49,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:49,653 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-10-13 00:14:49,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:49,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683627554] [2021-10-13 00:14:49,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:49,654 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,665 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:49,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:49,673 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:49,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,753 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:49,753 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:49,753 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:49,753 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:49,753 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:49,753 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,753 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:49,753 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:49,753 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-13 00:14:49,753 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:49,754 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:49,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:49,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,826 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:49,826 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:49,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,829 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:49,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:49,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:14:49,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:49,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:49,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,900 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,909 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:49,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:49,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:14:49,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:49,960 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:49,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:49,961 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:49,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:14:49,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:49,963 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:49,985 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:49,985 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=1} Honda state: {ULTIMATE.start_main_~c~0=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [0, 1, 0] Nus: [0, 0] [2021-10-13 00:14:50,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,014 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,015 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:14:50,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:50,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,033 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:50,033 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:50,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:14:50,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,055 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:14:50,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:50,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-10-13 00:14:50,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,086 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:14:50,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:50,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,122 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:50,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,124 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:50,124 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:50,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:50,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:50,124 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:50,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:50,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:50,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-13 00:14:50,125 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:50,125 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:50,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,198 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:50,198 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:50,199 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,201 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:50,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:50,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:50,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:50,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:50,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:50,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:50,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:50,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:14:50,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:50,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-10-13 00:14:50,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,266 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:50,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:14:50,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:50,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:50,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:50,275 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:50,278 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:50,278 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:50,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:50,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,326 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:50,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:14:50,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:50,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:50,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:50,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:50,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:50,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:50,348 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:50,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,386 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:14:50,387 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:50,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:50,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:50,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:50,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:50,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:50,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:50,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:50,398 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:50,400 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:50,400 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:50,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,401 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,402 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:50,402 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:50,402 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:50,402 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-13 00:14:50,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-13 00:14:50,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:50,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:50,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:50,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:50,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:50,473 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:50,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:50,485 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 00:14:50,486 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-13 00:14:50,497 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) Result 11 states and 17 transitions. Complement of second has 5 states. [2021-10-13 00:14:50,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-10-13 00:14:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-13 00:14:50,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 00:14:50,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:50,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-13 00:14:50,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:50,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-13 00:14:50,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:50,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-10-13 00:14:50,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:14:50,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-10-13 00:14:50,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-13 00:14:50,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-13 00:14:50,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-13 00:14:50,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:50,504 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-13 00:14:50,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-13 00:14:50,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-13 00:14:50,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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) [2021-10-13 00:14:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-10-13 00:14:50,508 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-13 00:14:50,508 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-13 00:14:50,508 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:14:50,508 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-10-13 00:14:50,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-13 00:14:50,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:50,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:50,511 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-13 00:14:50,511 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 00:14:50,511 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 306#L12-2 assume !!(main_~c~0 > 0); 307#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 313#L12-2 assume !!(main_~c~0 > 0); 311#L12 [2021-10-13 00:14:50,511 INFO L793 eck$LassoCheckResult]: Loop: 311#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 312#L12-2 assume !!(main_~c~0 > 0); 311#L12 [2021-10-13 00:14:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-13 00:14:50,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:50,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600959291] [2021-10-13 00:14:50,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:50,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:50,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:50,570 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:50,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:50,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600959291] [2021-10-13 00:14:50,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600959291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:50,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:50,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:14:50,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792595126] [2021-10-13 00:14:50,573 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:14:50,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:50,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-13 00:14:50,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:50,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688766837] [2021-10-13 00:14:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:50,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:50,579 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:50,582 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:50,604 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:50,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:50,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:50,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:50,604 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:50,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:50,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:50,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-13 00:14:50,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:50,605 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:50,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,611 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,671 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:50,671 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:50,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,673 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-13 00:14:50,680 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:50,680 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,710 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-13 00:14:50,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:50,712 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,735 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:50,735 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=1}, {ULTIMATE.start_main_~c~0=0}] Lambdas: [15, 1, 14] Nus: [0, 1] [2021-10-13 00:14:50,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-13 00:14:50,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,755 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,759 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:50,759 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-13 00:14:50,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-13 00:14:50,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,790 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-13 00:14:50,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:50,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:50,857 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:50,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,860 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:50,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:50,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:50,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:50,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:50,860 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:50,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:50,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-13 00:14:50,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:50,861 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:50,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:50,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:50,966 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:50,966 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:50,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:50,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:50,967 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:50,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-13 00:14:50,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:50,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:50,982 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:50,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:50,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:50,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:50,983 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:50,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:50,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:51,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,018 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-13 00:14:51,020 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:51,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:51,027 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:51,027 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:51,027 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:51,029 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:51,030 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:51,036 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:51,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,057 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-13 00:14:51,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:51,066 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:51,066 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:51,066 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:51,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:51,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:51,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:51,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:51,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:51,103 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:51,103 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:51,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,104 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-13 00:14:51,106 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:51,106 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:51,106 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:51,106 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-13 00:14:51,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,129 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:51,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:51,223 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:14:51,223 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,230 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 13 states and 17 transitions. Complement of second has 5 states. [2021-10-13 00:14:51,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:51,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 00:14:51,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:14:51,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:51,232 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:51,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,266 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:51,290 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:14:51,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 10 states and 14 transitions. Complement of second has 5 states. [2021-10-13 00:14:51,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:51,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:51,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:14:51,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:51,306 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:51,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:51,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:14:51,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:51,377 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 00:14:51,377 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Result 16 states and 20 transitions. Complement of second has 4 states. [2021-10-13 00:14:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:51,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-10-13 00:14:51,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-13 00:14:51,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 00:14:51,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:51,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-13 00:14:51,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:51,389 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-13 00:14:51,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:51,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-13 00:14:51,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-13 00:14:51,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-10-13 00:14:51,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:14:51,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 00:14:51,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-13 00:14:51,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:51,393 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-13 00:14:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-13 00:14:51,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-13 00:14:51,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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) [2021-10-13 00:14:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-13 00:14:51,396 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-13 00:14:51,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:51,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:14:51,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:14:51,400 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-10-13 00:14:51,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:51,417 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-10-13 00:14:51,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:14:51,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-13 00:14:51,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:14:51,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2021-10-13 00:14:51,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:14:51,421 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 00:14:51,421 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-10-13 00:14:51,421 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:51,421 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-13 00:14:51,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-10-13 00:14:51,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-13 00:14:51,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2021-10-13 00:14:51,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-13 00:14:51,423 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 00:14:51,423 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-13 00:14:51,423 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-13 00:14:51,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-13 00:14:51,425 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:14:51,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:51,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:51,426 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2021-10-13 00:14:51,426 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-13 00:14:51,427 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 456#L12-2 assume !!(main_~c~0 > 0); 457#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 462#L12-2 assume !!(main_~c~0 > 0); 461#L12 [2021-10-13 00:14:51,427 INFO L793 eck$LassoCheckResult]: Loop: 461#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 462#L12-2 assume !!(main_~c~0 > 0); 461#L12 [2021-10-13 00:14:51,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,427 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-10-13 00:14:51,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:51,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817640390] [2021-10-13 00:14:51,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:51,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:51,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,443 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,449 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:51,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-13 00:14:51,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:51,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504824216] [2021-10-13 00:14:51,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:51,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:51,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,455 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:51,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,467 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:51,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-10-13 00:14:51,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:51,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624224281] [2021-10-13 00:14:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:51,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,484 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:51,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:51,562 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:51,562 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:51,562 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:51,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:51,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:51,563 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,563 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:51,563 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:51,563 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-13 00:14:51,563 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:51,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:51,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:51,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:51,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,629 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-13 00:14:51,631 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:51,631 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:51,644 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:51,644 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:51,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,668 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-13 00:14:51,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:51,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:51,708 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:51,708 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:51,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,745 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:51,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:51,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-13 00:14:51,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,791 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-13 00:14:51,792 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:51,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:51,829 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:51,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,849 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:51,849 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:51,849 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:51,849 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:51,849 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:51,849 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,849 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:51,849 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:51,849 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-13 00:14:51,849 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:51,849 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:51,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:51,915 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:51,915 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:51,915 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,917 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:51,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:51,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:51,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:51,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:51,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:51,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:51,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:51,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-13 00:14:51,948 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:51,951 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:51,951 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:51,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:51,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:51,952 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:51,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-13 00:14:51,954 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:51,954 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:51,954 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:51,954 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 201 Supporting invariants [] [2021-10-13 00:14:51,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:51,974 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:51,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:52,112 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:52,112 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,121 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 13 states and 16 transitions. Complement of second has 5 states. [2021-10-13 00:14:52,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:52,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-13 00:14:52,123 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:14:52,123 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,123 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:52,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-13 00:14:52,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:52,249 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:52,249 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,266 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 11 states and 14 transitions. Complement of second has 5 states. [2021-10-13 00:14:52,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:52,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:52,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:14:52,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,267 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:52,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:52,362 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:52,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,370 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 16 states and 19 transitions. Complement of second has 4 states. [2021-10-13 00:14:52,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-13 00:14:52,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:14:52,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,372 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:52,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:52,473 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:52,474 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,493 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 13 states and 18 transitions. Complement of second has 4 states. [2021-10-13 00:14:52,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:52,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 00:14:52,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:14:52,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,496 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:52,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:52,588 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:52,589 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,644 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Result 72 states and 96 transitions. Complement of second has 37 states 8 powerset states29 rank states. The highest rank that occured is 5 [2021-10-13 00:14:52,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:52,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-10-13 00:14:52,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-10-13 00:14:52,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:14:52,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-13 00:14:52,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-13 00:14:52,649 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:52,649 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 96 transitions. [2021-10-13 00:14:52,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-13 00:14:52,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 27 states and 38 transitions. [2021-10-13 00:14:52,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-13 00:14:52,653 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-13 00:14:52,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2021-10-13 00:14:52,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:52,653 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-10-13 00:14:52,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2021-10-13 00:14:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-10-13 00:14:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-10-13 00:14:52,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2021-10-13 00:14:52,656 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-13 00:14:52,657 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-13 00:14:52,657 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-13 00:14:52,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2021-10-13 00:14:52,657 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:14:52,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:52,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:52,658 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2021-10-13 00:14:52,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-13 00:14:52,658 INFO L791 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 823#L12-2 assume !!(main_~c~0 > 0); 826#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 825#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 827#L12-2 assume !!(main_~c~0 > 0); 824#L12 [2021-10-13 00:14:52,659 INFO L793 eck$LassoCheckResult]: Loop: 824#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 825#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 827#L12-2 assume !!(main_~c~0 > 0); 824#L12 [2021-10-13 00:14:52,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,659 INFO L82 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 5 times [2021-10-13 00:14:52,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:52,660 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312523652] [2021-10-13 00:14:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:52,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:52,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:52,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312523652] [2021-10-13 00:14:52,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312523652] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:14:52,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136526307] [2021-10-13 00:14:52,688 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-13 00:14:52,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:14:52,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:52,690 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:14:52,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-13 00:14:52,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-13 00:14:52,745 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 00:14:52,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 00:14:52,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:52,770 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:52,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136526307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:14:52,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:14:52,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-13 00:14:52,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552939537] [2021-10-13 00:14:52,771 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:14:52,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:52,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2021-10-13 00:14:52,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:52,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809282133] [2021-10-13 00:14:52,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:52,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:52,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:52,778 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:52,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:52,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:52,851 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:52,851 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:52,851 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:52,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:52,851 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:52,852 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:52,852 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:52,852 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:52,852 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-13 00:14:52,852 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:52,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:52,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:52,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:52,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:52,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:52,918 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:52,919 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:52,919 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:52,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:52,920 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:52,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:52,929 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:52,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-13 00:14:52,961 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:52,961 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:52,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:52,994 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:52,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:52,994 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:52,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:52,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:53,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-13 00:14:53,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:53,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:53,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,054 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:53,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:53,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-13 00:14:53,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,118 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:53,120 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:53,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-13 00:14:53,212 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:53,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,215 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:53,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:53,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:53,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:53,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:53,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:53,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:53,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-13 00:14:53,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:53,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:53,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,284 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:53,284 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:53,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,286 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:53,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:53,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:53,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:53,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:53,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:53,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:53,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-13 00:14:53,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:53,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,358 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:53,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:53,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:53,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:53,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:53,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:53,371 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:53,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-13 00:14:53,388 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:53,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,422 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:53,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:53,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:53,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:53,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:53,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:53,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:53,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:53,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-13 00:14:53,444 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:53,450 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:53,450 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:14:53,451 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,452 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,453 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:53,453 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:53,454 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:53,454 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-13 00:14:53,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-13 00:14:53,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,489 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:53,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:53,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:53,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:53,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:53,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:14:53,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 00:14:53,596 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:14:53,596 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:53,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:53,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 22 transitions. cyclomatic complexity: 9. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Result 61 states and 87 transitions. Complement of second has 9 states. [2021-10-13 00:14:53,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:53,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-13 00:14:53,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-13 00:14:53,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:53,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-13 00:14:53,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:53,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 12 letters. [2021-10-13 00:14:53,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:53,639 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2021-10-13 00:14:53,647 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:14:53,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 52 states and 75 transitions. [2021-10-13 00:14:53,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:14:53,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 00:14:53,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 75 transitions. [2021-10-13 00:14:53,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:53,650 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-13 00:14:53,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 75 transitions. [2021-10-13 00:14:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2021-10-13 00:14:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 45 states have internal predecessors, (67), 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) [2021-10-13 00:14:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2021-10-13 00:14:53,659 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 67 transitions. [2021-10-13 00:14:53,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:53,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:14:53,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:14:53,660 INFO L87 Difference]: Start difference. First operand 46 states and 67 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-13 00:14:53,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:53,672 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-10-13 00:14:53,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:14:53,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-13 00:14:53,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:14:53,675 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 27 states and 36 transitions. [2021-10-13 00:14:53,675 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-13 00:14:53,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-13 00:14:53,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-13 00:14:53,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:53,676 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-13 00:14:53,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-13 00:14:53,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2021-10-13 00:14:53,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-10-13 00:14:53,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-10-13 00:14:53,678 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-13 00:14:53,678 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-13 00:14:53,679 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-13 00:14:53,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2021-10-13 00:14:53,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-13 00:14:53,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:53,680 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:53,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 2, 1] [2021-10-13 00:14:53,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-13 00:14:53,680 INFO L791 eck$LassoCheckResult]: Stem: 1076#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1077#L12-2 assume !!(main_~c~0 > 0); 1093#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1091#L12-2 assume !!(main_~c~0 > 0); 1084#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1079#L12-2 assume !!(main_~c~0 > 0); 1085#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1083#L12-2 assume !!(main_~c~0 > 0); 1082#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1081#L12-2 assume !!(main_~c~0 > 0); 1078#L12 [2021-10-13 00:14:53,681 INFO L793 eck$LassoCheckResult]: Loop: 1078#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1079#L12-2 assume !!(main_~c~0 > 0); 1085#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1083#L12-2 assume !!(main_~c~0 > 0); 1082#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1081#L12-2 assume !!(main_~c~0 > 0); 1078#L12 [2021-10-13 00:14:53,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:53,681 INFO L82 PathProgramCache]: Analyzing trace with hash -1791617062, now seen corresponding path program 6 times [2021-10-13 00:14:53,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:53,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276127655] [2021-10-13 00:14:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:53,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:53,689 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:53,695 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:53,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 3 times [2021-10-13 00:14:53,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:53,696 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619133720] [2021-10-13 00:14:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:53,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:53,701 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:53,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:53,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:53,706 INFO L82 PathProgramCache]: Analyzing trace with hash 709032111, now seen corresponding path program 7 times [2021-10-13 00:14:53,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:53,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425497657] [2021-10-13 00:14:53,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:53,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:53,771 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:53,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425497657] [2021-10-13 00:14:53,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425497657] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:14:53,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4662344] [2021-10-13 00:14:53,771 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-13 00:14:53,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 00:14:53,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:53,777 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 00:14:53,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-13 00:14:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:53,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:14:53,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:53,899 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:53,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4662344] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 00:14:53,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-13 00:14:53,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-13 00:14:53,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530152003] [2021-10-13 00:14:53,960 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:53,960 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:53,960 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:53,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:53,961 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:53,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:53,961 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:53,961 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:53,961 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-13 00:14:53,961 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:53,961 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:53,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,965 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:53,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:54,011 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:54,012 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,017 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:54,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:54,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-13 00:14:54,035 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:54,035 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:54,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-13 00:14:54,055 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,056 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-13 00:14:54,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:54,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:54,086 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-13 00:14:54,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,087 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-13 00:14:54,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:54,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:54,099 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:54,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:54,119 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:54,119 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:54,119 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:54,119 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:54,119 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:54,119 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,119 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:54,119 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:54,119 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-13 00:14:54,119 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:54,119 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:54,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,182 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:54,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:54,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,183 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-13 00:14:54,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:54,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:54,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:54,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:54,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:54,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:54,194 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:54,200 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:54,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:54,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,221 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-13 00:14:54,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:54,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:54,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:54,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:54,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:54,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:54,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:54,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:54,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:54,251 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:14:54,251 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:54,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,253 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:54,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:54,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:54,257 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:54,257 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:14:54,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-13 00:14:54,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:54,280 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:54,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:54,382 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 00:14:54,383 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-10-13 00:14:54,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:54,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-13 00:14:54,405 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:14:54,405 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:54,405 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:54,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,506 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:54,507 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 00:14:54,508 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,525 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Result 45 states and 56 transitions. Complement of second has 7 states. [2021-10-13 00:14:54,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-13 00:14:54,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:14:54,529 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:54,529 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:54,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:14:54,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:54,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:54,607 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-13 00:14:54,607 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13 Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,645 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 30 transitions. cyclomatic complexity: 13. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) Result 75 states and 99 transitions. Complement of second has 13 states. [2021-10-13 00:14:54,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:54,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2021-10-13 00:14:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-10-13 00:14:54,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:14:54,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:54,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2021-10-13 00:14:54,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:54,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2021-10-13 00:14:54,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:54,648 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 99 transitions. [2021-10-13 00:14:54,649 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2021-10-13 00:14:54,650 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 52 states and 71 transitions. [2021-10-13 00:14:54,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-13 00:14:54,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-13 00:14:54,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 71 transitions. [2021-10-13 00:14:54,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:54,650 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-10-13 00:14:54,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 71 transitions. [2021-10-13 00:14:54,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2021-10-13 00:14:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.45) internal successors, (58), 39 states have internal predecessors, (58), 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) [2021-10-13 00:14:54,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2021-10-13 00:14:54,654 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 58 transitions. [2021-10-13 00:14:54,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 00:14:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:14:54,655 INFO L87 Difference]: Start difference. First operand 40 states and 58 transitions. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2021-10-13 00:14:54,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:54,679 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-10-13 00:14:54,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:14:54,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 85 transitions. [2021-10-13 00:14:54,680 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2021-10-13 00:14:54,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 51 states and 67 transitions. [2021-10-13 00:14:54,681 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-13 00:14:54,681 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-13 00:14:54,681 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 67 transitions. [2021-10-13 00:14:54,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:54,682 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 67 transitions. [2021-10-13 00:14:54,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 67 transitions. [2021-10-13 00:14:54,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2021-10-13 00:14:54,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.303030303030303) internal successors, (43), 32 states have internal predecessors, (43), 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) [2021-10-13 00:14:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-13 00:14:54,685 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-13 00:14:54,685 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-13 00:14:54,685 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-13 00:14:54,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2021-10-13 00:14:54,686 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-10-13 00:14:54,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:54,686 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:54,687 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 00:14:54,687 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2] [2021-10-13 00:14:54,687 INFO L791 eck$LassoCheckResult]: Stem: 1621#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1623#L12-2 assume !!(main_~c~0 > 0); 1637#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1632#L12-2 assume !!(main_~c~0 > 0); 1628#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1629#L12-2 [2021-10-13 00:14:54,687 INFO L793 eck$LassoCheckResult]: Loop: 1629#L12-2 assume !!(main_~c~0 > 0); 1626#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1627#L12-2 assume !!(main_~c~0 > 0); 1631#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1617#L12-2 assume !!(main_~c~0 > 0); 1618#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1624#L12-2 assume !!(main_~c~0 > 0); 1628#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1629#L12-2 [2021-10-13 00:14:54,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,688 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 4 times [2021-10-13 00:14:54,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:54,688 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067074438] [2021-10-13 00:14:54,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:54,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,726 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:54,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,741 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1687002897, now seen corresponding path program 4 times [2021-10-13 00:14:54,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:54,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494541350] [2021-10-13 00:14:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:54,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:54,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:54,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 00:14:54,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:14:54,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494541350] [2021-10-13 00:14:54,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494541350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:14:54,776 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:14:54,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:14:54,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18051055] [2021-10-13 00:14:54,777 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:14:54,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:14:54,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:14:54,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:14:54,778 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. cyclomatic complexity: 14 Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-10-13 00:14:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:14:54,787 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-13 00:14:54,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:14:54,788 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-10-13 00:14:54,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-13 00:14:54,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 47 transitions. [2021-10-13 00:14:54,793 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-13 00:14:54,793 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-13 00:14:54,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2021-10-13 00:14:54,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:54,794 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-10-13 00:14:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2021-10-13 00:14:54,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-10-13 00:14:54,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 33 states have (on average 1.2424242424242424) internal successors, (41), 32 states have internal predecessors, (41), 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) [2021-10-13 00:14:54,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2021-10-13 00:14:54,804 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-13 00:14:54,804 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-13 00:14:54,804 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-13 00:14:54,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 41 transitions. [2021-10-13 00:14:54,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-13 00:14:54,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:54,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:54,805 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 00:14:54,805 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 3, 2] [2021-10-13 00:14:54,806 INFO L791 eck$LassoCheckResult]: Stem: 1712#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1714#L12-2 assume !!(main_~c~0 > 0); 1728#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1723#L12-2 assume !!(main_~c~0 > 0); 1719#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1708#L12-2 [2021-10-13 00:14:54,806 INFO L793 eck$LassoCheckResult]: Loop: 1708#L12-2 assume !!(main_~c~0 > 0); 1709#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1718#L12-2 assume !!(main_~c~0 > 0); 1724#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1722#L12-2 assume !!(main_~c~0 > 0); 1715#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1716#L12-2 assume !!(main_~c~0 > 0); 1727#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 1725#L12-2 assume !!(main_~c~0 > 0); 1721#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1708#L12-2 [2021-10-13 00:14:54,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,806 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 5 times [2021-10-13 00:14:54,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:54,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611332064] [2021-10-13 00:14:54,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:54,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,811 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,814 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:54,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,815 INFO L82 PathProgramCache]: Analyzing trace with hash 2007111828, now seen corresponding path program 5 times [2021-10-13 00:14:54,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:54,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145896008] [2021-10-13 00:14:54,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:54,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,821 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,827 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:54,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:54,828 INFO L82 PathProgramCache]: Analyzing trace with hash -254222659, now seen corresponding path program 8 times [2021-10-13 00:14:54,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:54,828 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868221278] [2021-10-13 00:14:54,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:54,829 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:54,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,836 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:54,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:54,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:54,933 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:54,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:54,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:54,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:54,934 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:54,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:54,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:54,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-13 00:14:54,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:54,935 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:54,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:54,988 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:54,988 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:54,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:54,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:54,989 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:55,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:55,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-13 00:14:55,039 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:14:55,039 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:14:55,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:55,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:55,072 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-13 00:14:55,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:55,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:55,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-10-13 00:14:55,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:55,105 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-13 00:14:55,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:55,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:55,139 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:55,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-13 00:14:55,142 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:55,142 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:55,142 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:55,142 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:55,142 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:55,142 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,142 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:55,142 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:55,142 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-13 00:14:55,142 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:55,142 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:55,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:55,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:55,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:55,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:55,213 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:55,213 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:55,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:55,214 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:55,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:55,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:55,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:55,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:55,241 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 00:14:55,241 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 00:14:55,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-13 00:14:55,255 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:14:55,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:55,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:55,289 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:55,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-13 00:14:55,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:55,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:55,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:55,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:55,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:55,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:55,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:55,310 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:55,312 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:55,313 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:14:55,313 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:55,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:55,315 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:55,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-13 00:14:55,316 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:55,316 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:55,317 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:55,317 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:14:55,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:55,336 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:55,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:55,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,480 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:55,481 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:14:55,481 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Result 37 states and 47 transitions. Complement of second has 5 states. [2021-10-13 00:14:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:55,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:55,487 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-13 00:14:55,487 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:55,487 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:55,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:55,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:55,619 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:14:55,620 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,624 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Result 37 states and 47 transitions. Complement of second has 5 states. [2021-10-13 00:14:55,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:55,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:55,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-13 00:14:55,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:55,625 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:55,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,747 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:55,747 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:14:55,748 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,759 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Result 46 states and 60 transitions. Complement of second has 4 states. [2021-10-13 00:14:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 00:14:55,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-13 00:14:55,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:55,761 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:55,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:55,942 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:14:55,942 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 41 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Result 63 states and 75 transitions. Complement of second has 8 states. [2021-10-13 00:14:55,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:55,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-13 00:14:55,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-13 00:14:55,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:55,974 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:55,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:55,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:55,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:56,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 00:14:56,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:56,112 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:56,112 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-13 00:14:56,113 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:56,167 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,168 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,169 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,169 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,171 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,216 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,217 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,217 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,218 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,218 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,218 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,219 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,219 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:56,227 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 33 states and 41 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Result 404 states and 547 transitions. Complement of second has 85 states 12 powerset states73 rank states. The highest rank that occured is 7 [2021-10-13 00:14:56,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2021-10-13 00:14:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2021-10-13 00:14:56,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-13 00:14:56,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:56,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 15 letters. Loop has 10 letters. [2021-10-13 00:14:56,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:56,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 20 letters. [2021-10-13 00:14:56,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:56,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 547 transitions. [2021-10-13 00:14:56,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-10-13 00:14:56,246 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 145 states and 187 transitions. [2021-10-13 00:14:56,246 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-13 00:14:56,247 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-13 00:14:56,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 187 transitions. [2021-10-13 00:14:56,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:56,247 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-10-13 00:14:56,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 187 transitions. [2021-10-13 00:14:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2021-10-13 00:14:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 96 states have (on average 1.34375) internal successors, (129), 95 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:14:56,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2021-10-13 00:14:56,272 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-13 00:14:56,272 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-13 00:14:56,272 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-13 00:14:56,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 129 transitions. [2021-10-13 00:14:56,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-10-13 00:14:56,274 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:56,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:56,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 00:14:56,275 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 4, 3] [2021-10-13 00:14:56,275 INFO L791 eck$LassoCheckResult]: Stem: 2705#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 2708#L12-2 assume !!(main_~c~0 > 0); 2733#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2725#L12-2 assume !!(main_~c~0 > 0); 2713#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2701#L12-2 [2021-10-13 00:14:56,275 INFO L793 eck$LassoCheckResult]: Loop: 2701#L12-2 assume !!(main_~c~0 > 0); 2702#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2762#L12-2 assume !!(main_~c~0 > 0); 2756#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2754#L12-2 assume !!(main_~c~0 > 0); 2748#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2747#L12-2 assume !!(main_~c~0 > 0); 2746#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2738#L12-2 assume !!(main_~c~0 > 0); 2717#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2730#L12-2 assume !!(main_~c~0 > 0); 2728#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 2727#L12-2 assume !!(main_~c~0 > 0); 2715#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2701#L12-2 [2021-10-13 00:14:56,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 6 times [2021-10-13 00:14:56,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:56,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38908127] [2021-10-13 00:14:56,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:56,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,282 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:56,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:56,287 INFO L82 PathProgramCache]: Analyzing trace with hash 822111324, now seen corresponding path program 6 times [2021-10-13 00:14:56,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:56,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110105613] [2021-10-13 00:14:56,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:56,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,302 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,323 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:56,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:56,331 INFO L82 PathProgramCache]: Analyzing trace with hash 128316933, now seen corresponding path program 9 times [2021-10-13 00:14:56,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:56,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511545616] [2021-10-13 00:14:56,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:56,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,342 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:56,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:56,476 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:56,476 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:56,476 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:56,476 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:56,476 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:56,477 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,477 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:56,477 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:56,477 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-13 00:14:56,477 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:56,477 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:56,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,528 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:56,528 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:56,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:56,533 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:56,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:56,538 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:56,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-13 00:14:56,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:56,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:56,593 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:56,594 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:56,594 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:56,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-13 00:14:56,632 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:56,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:56,634 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:56,634 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:56,634 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:56,634 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:56,634 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:56,634 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,635 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:56,635 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:56,635 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-13 00:14:56,635 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:56,635 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:56,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:56,687 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:56,687 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:56,687 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:56,688 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:56,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-13 00:14:56,689 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:56,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:56,696 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:56,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:56,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:56,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:56,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:56,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:56,699 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:56,701 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:14:56,702 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:14:56,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:56,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:56,703 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:56,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-13 00:14:56,705 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:56,705 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:56,705 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:56,705 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 00:14:56,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-10-13 00:14:56,725 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:56,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:56,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:56,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:56,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:56,938 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-13 00:14:56,938 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:56,945 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) Result 104 states and 145 transitions. Complement of second has 5 states. [2021-10-13 00:14:56,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:56,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:56,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-13 00:14:56,946 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:56,947 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:56,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:56,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:56,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:56,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:56,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:56,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,177 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:57,177 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-13 00:14:57,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,185 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) Result 104 states and 145 transitions. Complement of second has 5 states. [2021-10-13 00:14:57,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:57,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:57,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-13 00:14:57,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:57,186 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:57,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,210 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:57,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,374 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:57,374 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-13 00:14:57,375 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,382 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) Result 146 states and 191 transitions. Complement of second has 4 states. [2021-10-13 00:14:57,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-13 00:14:57,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-13 00:14:57,385 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:57,385 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:57,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:57,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:57,567 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-13 00:14:57,568 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,611 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96 states and 129 transitions. cyclomatic complexity: 42. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) Result 172 states and 219 transitions. Complement of second has 8 states. [2021-10-13 00:14:57,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:57,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-13 00:14:57,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-13 00:14:57,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:57,612 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:57,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:14:57,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:57,810 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:14:57,810 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 7 loop predicates [2021-10-13 00:14:57,810 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:57,863 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,863 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,863 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,864 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,864 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,864 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,865 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,865 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,867 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,867 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,869 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,869 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,909 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,909 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,910 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,910 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,910 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,911 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,911 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,911 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,911 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,912 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,912 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,912 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,913 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,913 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,913 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,913 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,920 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,921 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,924 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,924 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,924 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,925 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,968 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,969 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,970 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,971 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,972 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,973 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,979 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,979 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,980 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,980 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,980 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,980 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:57,985 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-13 00:14:58,029 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 96 states and 129 transitions. cyclomatic complexity: 42 Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) Result 1787 states and 2714 transitions. Complement of second has 144 states 16 powerset states128 rank states. The highest rank that occured is 7 [2021-10-13 00:14:58,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 7 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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) [2021-10-13 00:14:58,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2021-10-13 00:14:58,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-13 00:14:58,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:58,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 19 letters. Loop has 14 letters. [2021-10-13 00:14:58,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:58,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 28 letters. [2021-10-13 00:14:58,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:58,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1787 states and 2714 transitions. [2021-10-13 00:14:58,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-13 00:14:58,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1787 states to 471 states and 636 transitions. [2021-10-13 00:14:58,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-13 00:14:58,084 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-13 00:14:58,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 636 transitions. [2021-10-13 00:14:58,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:14:58,085 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 636 transitions. [2021-10-13 00:14:58,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 636 transitions. [2021-10-13 00:14:58,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 260. [2021-10-13 00:14:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 260 states have (on average 1.4461538461538461) internal successors, (376), 259 states have internal predecessors, (376), 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) [2021-10-13 00:14:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2021-10-13 00:14:58,115 INFO L704 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-13 00:14:58,115 INFO L587 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-13 00:14:58,115 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-13 00:14:58,115 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 376 transitions. [2021-10-13 00:14:58,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-10-13 00:14:58,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:14:58,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:14:58,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-13 00:14:58,119 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [9, 5, 4] [2021-10-13 00:14:58,119 INFO L791 eck$LassoCheckResult]: Stem: 5618#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 5623#L12-2 assume !!(main_~c~0 > 0); 5681#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5633#L12-2 assume !!(main_~c~0 > 0); 5630#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5614#L12-2 [2021-10-13 00:14:58,119 INFO L793 eck$LassoCheckResult]: Loop: 5614#L12-2 assume !!(main_~c~0 > 0); 5615#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5831#L12-2 assume !!(main_~c~0 > 0); 5761#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5759#L12-2 assume !!(main_~c~0 > 0); 5757#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5755#L12-2 assume !!(main_~c~0 > 0); 5751#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5752#L12-2 assume !!(main_~c~0 > 0); 5734#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5735#L12-2 assume !!(main_~c~0 > 0); 5731#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5732#L12-2 assume !!(main_~c~0 > 0); 5635#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5657#L12-2 assume !!(main_~c~0 > 0); 5636#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 5634#L12-2 assume !!(main_~c~0 > 0); 5632#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5614#L12-2 [2021-10-13 00:14:58,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:58,120 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 7 times [2021-10-13 00:14:58,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:58,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635359872] [2021-10-13 00:14:58,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:58,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,128 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,131 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:58,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:58,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1476420572, now seen corresponding path program 7 times [2021-10-13 00:14:58,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:58,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865435477] [2021-10-13 00:14:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:58,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:58,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,148 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:58,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:58,162 INFO L82 PathProgramCache]: Analyzing trace with hash 939927885, now seen corresponding path program 10 times [2021-10-13 00:14:58,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:14:58,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192472843] [2021-10-13 00:14:58,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:14:58,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:14:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,175 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:14:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:14:58,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:14:58,332 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:58,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:58,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:58,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:58,332 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:14:58,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:58,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:58,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-13 00:14:58,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:58,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:58,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,377 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:58,377 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:14:58,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:58,378 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:58,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-13 00:14:58,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:14:58,379 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:58,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-13 00:14:58,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:58,408 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:58,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-13 00:14:58,410 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:14:58,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:14:58,485 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:14:58,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:58,488 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:14:58,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:14:58,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:14:58,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:14:58,488 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:14:58,488 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,488 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:14:58,488 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:14:58,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-13 00:14:58,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:14:58,489 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:14:58,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:14:58,547 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:14:58,547 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:14:58,548 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:58,548 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:58,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-13 00:14:58,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:14:58,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:14:58,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:14:58,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:14:58,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:14:58,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:14:58,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:14:58,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:14:58,560 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:14:58,562 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:14:58,562 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:14:58,562 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:14:58,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:14:58,563 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:14:58,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-13 00:14:58,564 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:14:58,564 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:14:58,564 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:14:58,564 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-13 00:14:58,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:58,585 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:14:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:58,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:58,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:58,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:58,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:14:58,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:58,786 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 00:14:58,786 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:14:58,787 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:58,794 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) Result 276 states and 420 transitions. Complement of second has 5 states. [2021-10-13 00:14:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:58,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:58,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-13 00:14:58,809 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:58,810 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:58,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:58,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:58,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:58,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:14:58,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:58,983 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 00:14:58,984 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:14:58,984 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:58,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) Result 276 states and 420 transitions. Complement of second has 5 states. [2021-10-13 00:14:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:58,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:58,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-13 00:14:58,998 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-13 00:14:58,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:58,999 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:59,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:59,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:59,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:59,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:59,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:59,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:14:59,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:59,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:59,215 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 00:14:59,216 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:14:59,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:59,247 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) Result 392 states and 547 transitions. Complement of second has 7 states. [2021-10-13 00:14:59,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-10-13 00:14:59,248 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-13 00:14:59,248 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:59,248 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-13 00:14:59,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:14:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:59,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 00:14:59,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:59,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:14:59,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 00:14:59,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:14:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-13 00:14:59,419 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-13 00:14:59,420 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137 Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:59,469 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 260 states and 376 transitions. cyclomatic complexity: 137. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) Result 511 states and 724 transitions. Complement of second has 12 states. [2021-10-13 00:14:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2021-10-13 00:14:59,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-10-13 00:14:59,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2021-10-13 00:14:59,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-13 00:14:59,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:59,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 23 letters. Loop has 18 letters. [2021-10-13 00:14:59,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:59,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 36 letters. [2021-10-13 00:14:59,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:14:59,472 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 724 transitions. [2021-10-13 00:14:59,477 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:14:59,477 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 0 states and 0 transitions. [2021-10-13 00:14:59,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:14:59,477 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:14:59,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:14:59,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:14:59,478 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:14:59,478 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:14:59,478 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:14:59,478 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-13 00:14:59,478 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:14:59,478 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:14:59,479 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:14:59,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:14:59 BoogieIcfgContainer [2021-10-13 00:14:59,485 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:14:59,485 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:14:59,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:14:59,486 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:14:59,486 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:14:46" (3/4) ... [2021-10-13 00:14:59,489 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:14:59,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:14:59,491 INFO L168 Benchmark]: Toolchain (without parser) took 13356.95 ms. Allocated memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: 69.2 MB). Free memory was 52.0 MB in the beginning and 80.5 MB in the end (delta: -28.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,492 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:59,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.58 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.7 MB in the beginning and 84.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.89 ms. Allocated memory is still 107.0 MB. Free memory was 84.6 MB in the beginning and 83.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:59,493 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 82.6 MB in the end (delta: 840.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,493 INFO L168 Benchmark]: RCFGBuilder took 249.57 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 75.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,494 INFO L168 Benchmark]: BuchiAutomizer took 12822.15 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 74.7 MB in the beginning and 80.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:59,494 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 157.3 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:59,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory is still 68.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.58 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.7 MB in the beginning and 84.6 MB in the end (delta: -32.9 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.89 ms. Allocated memory is still 107.0 MB. Free memory was 84.6 MB in the beginning and 83.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 107.0 MB. Free memory was 83.4 MB in the beginning and 82.6 MB in the end (delta: 840.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 249.57 ms. Allocated memory is still 107.0 MB. Free memory was 82.6 MB in the beginning and 75.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 12822.15 ms. Allocated memory was 107.0 MB in the beginning and 157.3 MB in the end (delta: 50.3 MB). Free memory was 74.7 MB in the beginning and 80.5 MB in the end (delta: -5.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 157.3 MB. Free memory is still 80.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 15 terminating modules (4 trivial, 4 deterministic, 7 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function c and consists of 3 locations. One deterministic module has affine ranking function 211 + -2 * x and consists of 3 locations. One deterministic module has affine ranking function c and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function 211 + -2 * x and consists of 3 locations. One nondeterministic module has affine ranking function 201 + -2 * x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 5 locations. One nondeterministic module has affine ranking function x and consists of 7 locations. One nondeterministic module has affine ranking function x and consists of 9 locations. One nondeterministic module has affine ranking function c and consists of 6 locations. 4 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 12.7s and 13 iterations. TraceHistogramMax:9. Analysis of lassos took 7.3s. Construction of modules took 0.2s. Büchi inclusion checks took 4.8s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 109.3ms AutomataMinimizationTime, 14 MinimizatonAttempts, 335 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 260 states and ocurred in iteration 11. Nontrivial modules had stage [4, 0, 3, 1, 3]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 105/148 HoareTripleCheckerStatistics: 159 SDtfs, 155 SDslu, 74 SDs, 0 SdLazy, 277 SolverSat, 82 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 285.6ms Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT8 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf95 lsp36 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf94 smp98 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 11 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:14:59,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:59,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-10-13 00:14:59,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1deed323-e3ee-4c0f-a9ee-0c49d63bb529/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...