./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg --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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:40:12,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:40:12,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:40:12,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:40:12,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:40:12,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:40:12,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:40:12,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:40:12,837 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:40:12,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:40:12,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:40:12,841 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:40:12,841 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:40:12,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:40:12,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:40:12,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:40:12,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:40:12,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:40:12,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:40:12,855 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:40:12,857 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:40:12,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:40:12,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:40:12,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:40:12,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:40:12,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:40:12,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:40:12,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:40:12,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:40:12,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:40:12,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:40:12,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:40:12,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:40:12,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:40:12,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:40:12,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:40:12,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:40:12,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:40:12,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:40:12,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:40:12,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:40:12,890 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:40:12,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:40:12,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:40:12,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:40:12,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:40:12,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:40:12,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:40:12,959 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:40:12,959 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:40:12,959 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:40:12,959 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:40:12,960 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:40:12,960 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:40:12,960 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:40:12,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:40:12,960 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:40:12,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:40:12,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:40:12,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:40:12,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:40:12,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:40:12,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:40:12,962 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:40:12,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:40:12,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:40:12,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:40:12,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:40:12,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:40:12,971 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:40:12,972 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:40:12,973 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:40:12,974 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_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2021-10-28 08:40:13,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:40:13,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:40:13,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:40:13,390 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:40:13,391 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:40:13,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-28 08:40:13,463 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/data/cc6563bcc/8c24bf5aaf9249d89b3e10ee8f2e77b3/FLAGf4c070a1b [2021-10-28 08:40:13,967 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:40:13,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2021-10-28 08:40:13,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/data/cc6563bcc/8c24bf5aaf9249d89b3e10ee8f2e77b3/FLAGf4c070a1b [2021-10-28 08:40:14,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/data/cc6563bcc/8c24bf5aaf9249d89b3e10ee8f2e77b3 [2021-10-28 08:40:14,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:40:14,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:40:14,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:14,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:40:14,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:40:14,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a53201f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14, skipping insertion in model container [2021-10-28 08:40:14,360 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:40:14,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:40:14,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:14,567 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:40:14,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:40:14,594 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:40:14,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14 WrapperNode [2021-10-28 08:40:14,594 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:40:14,596 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:14,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:40:14,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:40:14,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,629 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:40:14,630 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:40:14,630 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:40:14,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:40:14,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:40:14,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:40:14,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:40:14,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:40:14,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (1/1) ... [2021-10-28 08:40:14,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:14,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:14,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:14,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:40:14,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:40:14,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:40:14,906 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:40:14,906 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:40:14,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:14 BoogieIcfgContainer [2021-10-28 08:40:14,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:40:14,913 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:40:14,914 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:40:14,918 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:40:14,919 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:14,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:40:14" (1/3) ... [2021-10-28 08:40:14,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35a832fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:40:14, skipping insertion in model container [2021-10-28 08:40:14,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:14,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:40:14" (2/3) ... [2021-10-28 08:40:14,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35a832fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:40:14, skipping insertion in model container [2021-10-28 08:40:14,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:40:14,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:14" (3/3) ... [2021-10-28 08:40:14,924 INFO L389 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2021-10-28 08:40:14,980 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:40:14,980 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:40:14,980 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:40:14,981 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:40:14,981 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:40:14,981 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:40:14,981 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:40:14,981 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:40:14,994 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) [2021-10-28 08:40:15,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:15,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:15,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:15,022 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:40:15,022 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:15,022 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:40:15,023 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) [2021-10-28 08:40:15,024 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:15,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:15,024 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:15,025 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:40:15,025 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:15,032 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 [2021-10-28 08:40:15,032 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 [2021-10-28 08:40:15,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:15,040 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 08:40:15,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:15,049 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635160805] [2021-10-28 08:40:15,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:15,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,115 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:15,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 08:40:15,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:15,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093688019] [2021-10-28 08:40:15,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:15,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,168 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,183 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:15,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:15,185 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 08:40:15,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:15,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842675564] [2021-10-28 08:40:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:15,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,194 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:15,201 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:15,311 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:15,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:15,316 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:15,316 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:15,316 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:15,317 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,317 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:15,317 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:15,317 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-28 08:40:15,317 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:15,318 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:15,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,525 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:15,526 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:15,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,530 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:40:15,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:15,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:15,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:15,557 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: [] [2021-10-28 08:40:15,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:40:15,593 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,608 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:15,608 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:15,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:40:15,626 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:15,626 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: [] [2021-10-28 08:40:15,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:15,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:40:15,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:15,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:15,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:15,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,698 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:40:15,703 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:15,703 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:15,755 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:15,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:15,764 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:15,764 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:15,764 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:15,764 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:15,764 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:15,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:15,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:15,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2021-10-28 08:40:15,765 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:15,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:15,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:15,881 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:15,886 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:15,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,889 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:40:15,895 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 [2021-10-28 08:40:15,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:15,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:15,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:15,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:15,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:15,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:15,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:15,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:15,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:15,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:15,979 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:15,986 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 [2021-10-28 08:40:15,996 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:15,996 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:15,996 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:15,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:16,002 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:16,002 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:16,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:40:16,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:16,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,063 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:40:16,068 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 [2021-10-28 08:40:16,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:16,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:16,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:16,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:16,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:16,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:16,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:16,081 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:16,086 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:16,086 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:40:16,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,091 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:40:16,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:16,131 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:16,131 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:16,132 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 08:40:16,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-28 08:40:16,161 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:16,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:16,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:16,215 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:16,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:16,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:16,249 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 [2021-10-28 08:40:16,251 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) [2021-10-28 08:40:16,296 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. [2021-10-28 08:40:16,297 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 [2021-10-28 08:40:16,299 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) [2021-10-28 08:40:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 08:40:16,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 08:40:16,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:16,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:40:16,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:16,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 08:40:16,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:16,305 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-28 08:40:16,312 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:16,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-28 08:40:16,317 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 08:40:16,317 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 08:40:16,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-28 08:40:16,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:16,319 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:40:16,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-28 08:40:16,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-28 08:40:16,345 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) [2021-10-28 08:40:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 08:40:16,346 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:40:16,347 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:40:16,347 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:40:16,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 08:40:16,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:16,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:16,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:16,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:40:16,349 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:16,349 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 [2021-10-28 08:40:16,349 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 [2021-10-28 08:40:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:16,350 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-28 08:40:16,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:16,351 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535103284] [2021-10-28 08:40:16,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:16,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:16,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,366 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,382 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:16,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:16,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-28 08:40:16,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:16,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352834638] [2021-10-28 08:40:16,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:16,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,397 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:16,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,401 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-28 08:40:16,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:16,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237897974] [2021-10-28 08:40:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:16,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:16,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,409 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:16,417 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:16,446 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:16,446 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:16,446 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:16,447 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:16,447 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:16,447 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,447 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:16,447 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:16,447 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-28 08:40:16,447 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:16,447 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:16,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:16,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:16,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,523 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:16,523 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:16,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:40:16,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:16,555 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: [] [2021-10-28 08:40:16,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,595 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,601 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:16,601 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:16,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:40:16,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,671 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:16,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:16,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:40:16,735 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:16,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,742 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:16,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:16,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:16,743 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:16,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:16,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:16,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:16,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2021-10-28 08:40:16,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:16,743 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:16,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:16,813 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:16,813 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:16,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,816 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:40:16,826 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 [2021-10-28 08:40:16,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:16,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:16,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:16,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:16,844 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:16,845 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:16,862 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:16,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,898 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,905 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 [2021-10-28 08:40:16,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:16,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:16,915 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:16,915 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:16,915 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:16,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:40:16,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:16,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:16,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:16,948 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:16,948 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:40:16,949 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:16,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:16,950 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:16,955 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:16,956 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:16,956 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:16,956 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-28 08:40:16,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:40:16,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:16,987 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:17,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,031 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:17,071 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 [2021-10-28 08:40:17,071 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) [2021-10-28 08:40:17,088 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. [2021-10-28 08:40:17,089 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 [2021-10-28 08:40:17,090 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) [2021-10-28 08:40:17,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:40:17,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:40:17,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:40:17,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 08:40:17,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-28 08:40:17,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:17,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 08:40:17,099 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 08:40:17,099 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 08:40:17,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-28 08:40:17,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:17,101 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:40:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-28 08:40:17,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 08:40:17,111 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) [2021-10-28 08:40:17,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 08:40:17,116 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:40:17,116 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:40:17,116 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:40:17,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-28 08:40:17,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:40:17,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:17,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:17,118 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:40:17,118 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:17,118 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 [2021-10-28 08:40:17,118 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 [2021-10-28 08:40:17,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,119 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-28 08:40:17,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:17,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384063728] [2021-10-28 08:40:17,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:17,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:17,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,127 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:17,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-28 08:40:17,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:17,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64150067] [2021-10-28 08:40:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:17,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,162 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2021-10-28 08:40:17,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:17,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670964701] [2021-10-28 08:40:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:17,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:17,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:17,236 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:17,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:17,236 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:17,236 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:17,236 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:17,236 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:17,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:17,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-28 08:40:17,238 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:17,238 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:17,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:17,333 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:17,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:17,339 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:17,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:17,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:17,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:40:17,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:17,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:17,415 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:17,428 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:17,428 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:17,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:40:17,478 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:17,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:17,484 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:17,484 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:17,484 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:17,484 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:17,484 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:17,484 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:17,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:17,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2021-10-28 08:40:17,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:17,485 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:17,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:17,607 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:17,608 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:17,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:17,614 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:17,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:17,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:17,665 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 [2021-10-28 08:40:17,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:17,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:17,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:17,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:17,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:17,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:17,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:17,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:40:17,698 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:17,703 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:40:17,703 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:17,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:17,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:17,707 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:17,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:17,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:17,710 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:17,710 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 08:40:17,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:40:17,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:17,753 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:17,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,803 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:17,812 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 [2021-10-28 08:40:17,816 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) [2021-10-28 08:40:17,830 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. [2021-10-28 08:40:17,831 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 [2021-10-28 08:40:17,831 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) [2021-10-28 08:40:17,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:40:17,832 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:40:17,832 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,832 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:17,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,884 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:17,893 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 [2021-10-28 08:40:17,894 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) [2021-10-28 08:40:17,904 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. [2021-10-28 08:40:17,905 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 [2021-10-28 08:40:17,905 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) [2021-10-28 08:40:17,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:40:17,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:40:17,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,906 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:17,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:17,947 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:17,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:17,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:17,958 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 [2021-10-28 08:40:17,958 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) [2021-10-28 08:40:17,973 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. [2021-10-28 08:40:17,973 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 [2021-10-28 08:40:17,974 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) [2021-10-28 08:40:17,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 08:40:17,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:40:17,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 08:40:17,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 08:40:17,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:17,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-28 08:40:17,980 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:40:17,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-28 08:40:17,982 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 08:40:17,982 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 08:40:17,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 08:40:17,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:17,982 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 08:40:17,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 08:40:17,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-28 08:40:17,984 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) [2021-10-28 08:40:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-28 08:40:17,984 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 08:40:17,985 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 08:40:17,985 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:40:17,985 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-10-28 08:40:17,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:40:17,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:17,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:17,986 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:40:17,986 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:17,986 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 [2021-10-28 08:40:17,986 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 [2021-10-28 08:40:17,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:17,987 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 08:40:17,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:17,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24176372] [2021-10-28 08:40:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:17,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,000 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:18,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2021-10-28 08:40:18,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:18,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848678915] [2021-10-28 08:40:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:18,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:18,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:18,026 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2021-10-28 08:40:18,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:18,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201951333] [2021-10-28 08:40:18,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:18,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:18,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,049 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:18,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:18,087 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:18,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:18,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:18,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:18,087 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:18,087 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,087 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:18,087 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:18,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-28 08:40:18,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:18,088 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:18,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,159 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:18,160 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:18,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,163 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:18,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:40:18,195 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:18,195 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: [] [2021-10-28 08:40:18,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,220 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:40:18,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:18,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,256 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:18,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:40:18,295 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:18,296 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] [2021-10-28 08:40:18,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,316 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,317 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:40:18,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:18,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,333 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:18,333 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: [] [2021-10-28 08:40:18,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,357 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:40:18,361 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:18,361 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,396 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:40:18,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:18,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:18,448 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:18,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,454 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:18,454 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:18,455 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:18,455 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:18,455 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:18,455 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,455 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:18,455 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:18,455 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2021-10-28 08:40:18,455 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:18,455 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:18,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,532 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:18,532 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:18,532 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,535 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,543 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 [2021-10-28 08:40:18,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:18,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:18,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:18,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:18,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:18,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:18,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:18,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:40:18,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:18,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,615 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,618 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 [2021-10-28 08:40:18,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:18,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:18,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:18,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:18,632 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:18,632 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:18,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:40:18,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:18,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,689 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,691 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,694 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 [2021-10-28 08:40:18,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:18,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:18,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:18,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:18,707 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:18,707 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:18,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:40:18,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:18,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:18,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,768 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,771 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 [2021-10-28 08:40:18,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:18,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:18,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:18,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:18,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:18,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:18,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:18,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:40:18,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:18,806 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:18,806 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:18,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:18,807 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:18,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:40:18,808 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:18,808 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:18,808 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:18,808 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-28 08:40:18,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 08:40:18,830 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:18,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:18,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:18,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:18,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:18,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:18,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:18,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:18,877 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 [2021-10-28 08:40:18,877 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) [2021-10-28 08:40:18,888 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. [2021-10-28 08:40:18,888 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 [2021-10-28 08:40:18,888 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) [2021-10-28 08:40:18,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-28 08:40:18,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 08:40:18,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:18,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:40:18,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:18,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 08:40:18,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:18,890 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2021-10-28 08:40:18,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:40:18,894 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2021-10-28 08:40:18,894 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 08:40:18,894 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 08:40:18,894 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2021-10-28 08:40:18,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:18,894 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2021-10-28 08:40:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2021-10-28 08:40:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-28 08:40:18,896 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) [2021-10-28 08:40:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2021-10-28 08:40:18,897 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-28 08:40:18,897 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2021-10-28 08:40:18,897 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:40:18,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2021-10-28 08:40:18,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:40:18,898 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:18,898 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:18,900 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-28 08:40:18,900 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:40:18,900 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 [2021-10-28 08:40:18,900 INFO L793 eck$LassoCheckResult]: Loop: 311#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 312#L12-2 assume !!(main_~c~0 > 0); 311#L12 [2021-10-28 08:40:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:18,901 INFO L85 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-28 08:40:18,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:18,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866314658] [2021-10-28 08:40:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:18,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:18,938 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:18,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:18,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866314658] [2021-10-28 08:40:18,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866314658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:18,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:18,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:40:18,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175632777] [2021-10-28 08:40:18,942 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:18,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:18,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-28 08:40:18,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:18,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502561407] [2021-10-28 08:40:18,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:18,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,947 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:18,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:18,984 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:18,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:18,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:18,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:18,984 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:18,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:18,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:18,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:18,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-28 08:40:18,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:18,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:18,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:18,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:19,039 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:19,039 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:19,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,040 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,047 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:19,047 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:19,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:40:19,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 08:40:19,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,096 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:40:19,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:19,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:19,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:19,133 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] [2021-10-28 08:40:19,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,172 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:40:19,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:19,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:19,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,219 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,220 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:40:19,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:19,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:19,257 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:19,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,295 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:19,295 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:19,295 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:19,295 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:19,295 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:19,295 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:19,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:19,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2021-10-28 08:40:19,296 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:19,296 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:19,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:19,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:19,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:19,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:19,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:19,361 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:19,361 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,377 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:40:19,385 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 [2021-10-28 08:40:19,393 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:19,393 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:19,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:19,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:19,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:19,394 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:19,394 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:19,396 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:19,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,416 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,417 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:40:19,418 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 [2021-10-28 08:40:19,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:19,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:19,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:19,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:19,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:19,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:19,454 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:19,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:19,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,499 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:40:19,501 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 [2021-10-28 08:40:19,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:19,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:19,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:19,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:19,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:19,510 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:19,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:19,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:19,519 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:19,519 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:19,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:19,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:19,520 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:19,521 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:19,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:19,522 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:19,522 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 211 Supporting invariants [] [2021-10-28 08:40:19,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:40:19,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 08:40:19,543 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:19,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,583 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:19,643 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 [2021-10-28 08:40:19,643 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) [2021-10-28 08:40:19,657 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. [2021-10-28 08:40:19,658 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 [2021-10-28 08:40:19,659 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) [2021-10-28 08:40:19,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 08:40:19,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 08:40:19,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:19,660 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:19,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:19,728 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 [2021-10-28 08:40:19,729 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) [2021-10-28 08:40:19,750 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. [2021-10-28 08:40:19,750 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 [2021-10-28 08:40:19,750 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) [2021-10-28 08:40:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:19,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 08:40:19,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:19,751 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:19,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:19,792 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:40:19,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:19,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:19,833 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 [2021-10-28 08:40:19,833 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) [2021-10-28 08:40:19,843 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. [2021-10-28 08:40:19,844 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 [2021-10-28 08:40:19,845 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) [2021-10-28 08:40:19,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 08:40:19,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 08:40:19,845 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:19,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 08:40:19,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:19,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 08:40:19,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:19,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 20 transitions. [2021-10-28 08:40:19,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:40:19,849 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 12 states and 16 transitions. [2021-10-28 08:40:19,849 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 08:40:19,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 08:40:19,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-28 08:40:19,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:19,850 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-28 08:40:19,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-28 08:40:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2021-10-28 08:40:19,852 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) [2021-10-28 08:40:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 08:40:19,852 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:40:19,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:19,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:19,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:19,857 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) [2021-10-28 08:40:19,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:19,875 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2021-10-28 08:40:19,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:40:19,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2021-10-28 08:40:19,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 08:40:19,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 8 states and 10 transitions. [2021-10-28 08:40:19,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 08:40:19,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 08:40:19,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2021-10-28 08:40:19,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:19,880 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2021-10-28 08:40:19,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2021-10-28 08:40:19,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-28 08:40:19,882 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) [2021-10-28 08:40:19,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 08:40:19,882 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 08:40:19,882 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 08:40:19,882 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:40:19,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-28 08:40:19,884 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-28 08:40:19,885 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:19,885 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:19,886 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2021-10-28 08:40:19,886 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 08:40:19,886 INFO L791 eck$LassoCheckResult]: Stem: 460#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 456#L12-2 assume !!(main_~c~0 > 0); 457#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 458#L12-2 assume !!(main_~c~0 > 0); 459#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 462#L12-2 assume !!(main_~c~0 > 0); 461#L12 [2021-10-28 08:40:19,886 INFO L793 eck$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 [2021-10-28 08:40:19,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,887 INFO L85 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-10-28 08:40:19,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:19,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32179853] [2021-10-28 08:40:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:19,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,905 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,924 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-28 08:40:19,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:19,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413578696] [2021-10-28 08:40:19,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:19,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:19,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,930 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,944 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:19,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:19,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-10-28 08:40:19,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:19,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432356759] [2021-10-28 08:40:19,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:19,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,964 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:19,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:20,040 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:20,040 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:20,040 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:20,040 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:20,040 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:20,040 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,040 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:20,041 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:20,041 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-28 08:40:20,041 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:20,041 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:20,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,103 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:20,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:20,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,104 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,107 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:20,107 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:20,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:40:20,121 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:20,121 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: [] [2021-10-28 08:40:20,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:20,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,154 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:40:20,156 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:20,156 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:20,169 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:20,169 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: [] [2021-10-28 08:40:20,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 08:40:20,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,190 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:20,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:20,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 08:40:20,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:20,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,222 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:40:20,223 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:20,223 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:20,241 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:20,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 08:40:20,262 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:20,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:20,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:20,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:20,262 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:20,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:20,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:20,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2021-10-28 08:40:20,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:20,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:20,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,270 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:20,321 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:20,321 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:20,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,323 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,335 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 [2021-10-28 08:40:20,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:20,345 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:20,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:20,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:20,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:20,346 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:20,346 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:20,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 08:40:20,354 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:20,356 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:20,356 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:20,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:20,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:20,357 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:20,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:40:20,358 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:20,358 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:20,358 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:20,359 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 201 Supporting invariants [] [2021-10-28 08:40:20,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:20,379 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:20,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:20,505 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 [2021-10-28 08:40:20,506 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) [2021-10-28 08:40:20,517 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. [2021-10-28 08:40:20,517 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 [2021-10-28 08:40:20,518 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) [2021-10-28 08:40:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2021-10-28 08:40:20,522 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:40:20,522 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:20,522 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:20,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:20,637 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 [2021-10-28 08:40:20,637 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) [2021-10-28 08:40:20,655 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. [2021-10-28 08:40:20,655 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 [2021-10-28 08:40:20,656 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) [2021-10-28 08:40:20,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:20,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:40:20,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:20,656 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:20,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:20,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:20,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:20,807 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 [2021-10-28 08:40:20,808 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) [2021-10-28 08:40:20,819 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. [2021-10-28 08:40:20,819 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 [2021-10-28 08:40:20,820 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) [2021-10-28 08:40:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2021-10-28 08:40:20,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:40:20,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:20,821 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:20,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:20,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:20,929 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 [2021-10-28 08:40:20,929 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) [2021-10-28 08:40:20,948 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. [2021-10-28 08:40:20,950 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 [2021-10-28 08:40:20,950 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) [2021-10-28 08:40:20,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 08:40:20,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:40:20,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:20,951 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:20,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:20,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:20,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:20,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:21,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:21,047 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 [2021-10-28 08:40:21,048 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) [2021-10-28 08:40:21,109 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 [2021-10-28 08:40:21,109 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 [2021-10-28 08:40:21,110 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) [2021-10-28 08:40:21,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2021-10-28 08:40:21,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-28 08:40:21,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:21,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-28 08:40:21,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:21,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-28 08:40:21,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:21,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 96 transitions. [2021-10-28 08:40:21,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-28 08:40:21,125 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 27 states and 38 transitions. [2021-10-28 08:40:21,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-28 08:40:21,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-28 08:40:21,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 38 transitions. [2021-10-28 08:40:21,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:21,126 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 38 transitions. [2021-10-28 08:40:21,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 38 transitions. [2021-10-28 08:40:21,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 15. [2021-10-28 08:40:21,130 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) [2021-10-28 08:40:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 22 transitions. [2021-10-28 08:40:21,132 INFO L704 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-28 08:40:21,132 INFO L587 BuchiCegarLoop]: Abstraction has 15 states and 22 transitions. [2021-10-28 08:40:21,132 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 08:40:21,132 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 22 transitions. [2021-10-28 08:40:21,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 08:40:21,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:21,135 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:21,135 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 2, 1, 1] [2021-10-28 08:40:21,136 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-28 08:40:21,137 INFO L791 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 823#L12-2 assume !!(main_~c~0 > 0); 826#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 825#L12-2 assume !!(main_~c~0 > 0); 830#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 829#L12-2 assume !!(main_~c~0 > 0); 828#L12 assume main_~x~0 > 100;main_~x~0 := main_~x~0 - 10;main_~c~0 := main_~c~0 - 1; 827#L12-2 assume !!(main_~c~0 > 0); 824#L12 [2021-10-28 08:40:21,137 INFO L793 eck$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 [2021-10-28 08:40:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 659527871, now seen corresponding path program 5 times [2021-10-28 08:40:21,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:21,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583113925] [2021-10-28 08:40:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:21,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:21,192 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:40:21,192 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:21,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583113925] [2021-10-28 08:40:21,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583113925] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:21,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745849377] [2021-10-28 08:40:21,193 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-28 08:40:21,193 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:21,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,199 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-10-28 08:40:21,264 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-28 08:40:21,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:40:21,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 08:40:21,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:21,294 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:40:21,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745849377] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:21,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:40:21,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-10-28 08:40:21,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315978287] [2021-10-28 08:40:21,296 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:40:21,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:21,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 2 times [2021-10-28 08:40:21,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:21,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562763876] [2021-10-28 08:40:21,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:21,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:21,313 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:21,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:21,382 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:21,382 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:21,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:21,383 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:21,383 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:21,383 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,383 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:21,383 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:21,383 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-28 08:40:21,383 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:21,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:21,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,454 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:21,454 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:21,454 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,455 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:21,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:21,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 08:40:21,495 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:21,495 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: [] [2021-10-28 08:40:21,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-28 08:40:21,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,518 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 08:40:21,520 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:21,520 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:21,533 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:21,534 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: [] [2021-10-28 08:40:21,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,554 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,555 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 08:40:21,558 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:21,559 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:21,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,589 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 08:40:21,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:21,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:21,703 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:21,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,708 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:21,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:21,708 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:21,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:21,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:21,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:21,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:21,709 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2021-10-28 08:40:21,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:21,709 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:21,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:21,763 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:21,763 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:21,764 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,765 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,775 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 [2021-10-28 08:40:21,783 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:21,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:21,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:21,783 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:21,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 08:40:21,785 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:21,785 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:21,790 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:21,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,811 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 08:40:21,813 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 [2021-10-28 08:40:21,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:21,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:21,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:21,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:21,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:21,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:21,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:21,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,846 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,848 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 08:40:21,850 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 [2021-10-28 08:40:21,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:21,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:21,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:21,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:21,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:21,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:21,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:21,860 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:21,862 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:21,862 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:40:21,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:21,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:21,863 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:21,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 08:40:21,864 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:21,864 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:21,864 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:21,865 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-28 08:40:21,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:21,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:21,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:21,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:21,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:21,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:21,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:21,983 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 08:40:21,984 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 [2021-10-28 08:40:21,984 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) [2021-10-28 08:40:22,024 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. [2021-10-28 08:40:22,025 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 [2021-10-28 08:40:22,025 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) [2021-10-28 08:40:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2021-10-28 08:40:22,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2021-10-28 08:40:22,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:22,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 14 letters. Loop has 6 letters. [2021-10-28 08:40:22,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:22,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 8 letters. Loop has 12 letters. [2021-10-28 08:40:22,026 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:22,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 87 transitions. [2021-10-28 08:40:22,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 08:40:22,036 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 52 states and 75 transitions. [2021-10-28 08:40:22,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 08:40:22,036 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 08:40:22,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 75 transitions. [2021-10-28 08:40:22,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:22,036 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-28 08:40:22,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 75 transitions. [2021-10-28 08:40:22,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 46. [2021-10-28 08:40:22,050 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) [2021-10-28 08:40:22,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 67 transitions. [2021-10-28 08:40:22,051 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 67 transitions. [2021-10-28 08:40:22,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:40:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:40:22,052 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) [2021-10-28 08:40:22,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:22,068 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-10-28 08:40:22,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:40:22,069 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2021-10-28 08:40:22,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 08:40:22,071 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 27 states and 36 transitions. [2021-10-28 08:40:22,071 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-28 08:40:22,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2021-10-28 08:40:22,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-28 08:40:22,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:22,071 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-28 08:40:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-28 08:40:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2021-10-28 08:40:22,075 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) [2021-10-28 08:40:22,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 30 transitions. [2021-10-28 08:40:22,076 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 08:40:22,076 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 30 transitions. [2021-10-28 08:40:22,076 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 08:40:22,076 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 30 transitions. [2021-10-28 08:40:22,077 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2021-10-28 08:40:22,078 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:22,078 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:22,081 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 2, 2, 1] [2021-10-28 08:40:22,081 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1] [2021-10-28 08:40:22,081 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 [2021-10-28 08:40:22,081 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 [2021-10-28 08:40:22,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:22,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1791617062, now seen corresponding path program 6 times [2021-10-28 08:40:22,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:22,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807592704] [2021-10-28 08:40:22,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:22,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:22,108 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:22,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1326573462, now seen corresponding path program 3 times [2021-10-28 08:40:22,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:22,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571828736] [2021-10-28 08:40:22,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:22,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:22,120 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:22,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash 709032111, now seen corresponding path program 7 times [2021-10-28 08:40:22,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:22,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228769468] [2021-10-28 08:40:22,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:22,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:22,217 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:40:22,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:22,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228769468] [2021-10-28 08:40:22,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228769468] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:22,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503121907] [2021-10-28 08:40:22,218 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-28 08:40:22,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:40:22,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,223 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-10-28 08:40:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:22,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:40:22,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:22,362 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 41 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:40:22,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503121907] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:40:22,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:40:22,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-28 08:40:22,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418467080] [2021-10-28 08:40:22,438 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:22,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:22,438 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:22,438 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:22,439 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:22,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,439 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:22,439 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:22,439 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-28 08:40:22,439 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:22,439 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:22,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:22,499 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:22,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:22,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,503 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:22,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:22,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 08:40:22,527 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:22,527 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: [] [2021-10-28 08:40:22,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 08:40:22,549 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,550 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 08:40:22,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:22,551 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:22,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-28 08:40:22,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,582 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:22,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:22,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 08:40:22,603 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:22,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-10-28 08:40:22,624 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:22,624 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:22,625 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:22,625 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:22,625 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:22,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,625 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:22,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:22,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration8_Loop [2021-10-28 08:40:22,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:22,625 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:22,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:22,702 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:22,702 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:22,702 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,703 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,705 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 [2021-10-28 08:40:22,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:22,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:22,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:22,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:22,717 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:22,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:22,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 08:40:22,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:22,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:22,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,773 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 08:40:22,774 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 [2021-10-28 08:40:22,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:22,782 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:22,782 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:22,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:22,782 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:22,783 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:22,783 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:22,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:22,786 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:40:22,786 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:22,786 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:22,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:22,788 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:22,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 08:40:22,789 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:22,789 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:22,789 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:22,789 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 08:40:22,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-10-28 08:40:22,820 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:22,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:22,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:22,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:22,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:22,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:22,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:22,941 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 [2021-10-28 08:40:22,941 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) [2021-10-28 08:40:22,962 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. [2021-10-28 08:40:22,963 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 [2021-10-28 08:40:22,963 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) [2021-10-28 08:40:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-28 08:40:22,964 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-28 08:40:22,964 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:22,964 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:22,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:22,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:23,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:23,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:23,076 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 [2021-10-28 08:40:23,076 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) [2021-10-28 08:40:23,098 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. [2021-10-28 08:40:23,099 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 [2021-10-28 08:40:23,099 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) [2021-10-28 08:40:23,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-10-28 08:40:23,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-28 08:40:23,100 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:23,100 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:23,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:23,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:40:23,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:23,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:23,200 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 [2021-10-28 08:40:23,200 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) [2021-10-28 08:40:23,227 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. [2021-10-28 08:40:23,228 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 [2021-10-28 08:40:23,228 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) [2021-10-28 08:40:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-10-28 08:40:23,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-28 08:40:23,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:23,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2021-10-28 08:40:23,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:23,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2021-10-28 08:40:23,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:23,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75 states and 99 transitions. [2021-10-28 08:40:23,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2021-10-28 08:40:23,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75 states to 52 states and 71 transitions. [2021-10-28 08:40:23,237 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-28 08:40:23,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-28 08:40:23,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 71 transitions. [2021-10-28 08:40:23,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:23,237 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-10-28 08:40:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 71 transitions. [2021-10-28 08:40:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 40. [2021-10-28 08:40:23,243 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) [2021-10-28 08:40:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 58 transitions. [2021-10-28 08:40:23,248 INFO L704 BuchiCegarLoop]: Abstraction has 40 states and 58 transitions. [2021-10-28 08:40:23,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:40:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:40:23,249 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) [2021-10-28 08:40:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:23,268 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2021-10-28 08:40:23,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 08:40:23,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 85 transitions. [2021-10-28 08:40:23,270 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2021-10-28 08:40:23,272 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 51 states and 67 transitions. [2021-10-28 08:40:23,272 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2021-10-28 08:40:23,273 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2021-10-28 08:40:23,274 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 67 transitions. [2021-10-28 08:40:23,275 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:23,275 INFO L681 BuchiCegarLoop]: Abstraction has 51 states and 67 transitions. [2021-10-28 08:40:23,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 67 transitions. [2021-10-28 08:40:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 33. [2021-10-28 08:40:23,279 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) [2021-10-28 08:40:23,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-10-28 08:40:23,280 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-28 08:40:23,280 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-10-28 08:40:23,280 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 08:40:23,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 43 transitions. [2021-10-28 08:40:23,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2021-10-28 08:40:23,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:23,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:23,281 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:40:23,281 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 2, 2] [2021-10-28 08:40:23,281 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 [2021-10-28 08:40:23,281 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 [2021-10-28 08:40:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 4 times [2021-10-28 08:40:23,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:23,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920263044] [2021-10-28 08:40:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:23,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:23,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:23,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1687002897, now seen corresponding path program 4 times [2021-10-28 08:40:23,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:23,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730358168] [2021-10-28 08:40:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:23,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:23,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:40:23,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:40:23,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730358168] [2021-10-28 08:40:23,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730358168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:40:23,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:40:23,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:40:23,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778447557] [2021-10-28 08:40:23,315 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 08:40:23,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:40:23,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:40:23,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:40:23,316 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) [2021-10-28 08:40:23,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:40:23,329 INFO L93 Difference]: Finished difference Result 51 states and 63 transitions. [2021-10-28 08:40:23,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:40:23,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 63 transitions. [2021-10-28 08:40:23,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-28 08:40:23,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 39 states and 47 transitions. [2021-10-28 08:40:23,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 08:40:23,338 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 08:40:23,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 47 transitions. [2021-10-28 08:40:23,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:23,339 INFO L681 BuchiCegarLoop]: Abstraction has 39 states and 47 transitions. [2021-10-28 08:40:23,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 47 transitions. [2021-10-28 08:40:23,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2021-10-28 08:40:23,342 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) [2021-10-28 08:40:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2021-10-28 08:40:23,342 INFO L704 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-28 08:40:23,343 INFO L587 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-10-28 08:40:23,346 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 08:40:23,346 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 41 transitions. [2021-10-28 08:40:23,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-10-28 08:40:23,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:23,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:23,348 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:40:23,348 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 3, 2] [2021-10-28 08:40:23,348 INFO L791 eck$LassoCheckResult]: Stem: 1712#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 1714#L12-2 assume !!(main_~c~0 > 0); 1728#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1723#L12-2 assume !!(main_~c~0 > 0); 1719#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 1708#L12-2 [2021-10-28 08:40:23,348 INFO L793 eck$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 [2021-10-28 08:40:23,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 5 times [2021-10-28 08:40:23,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:23,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253445890] [2021-10-28 08:40:23,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:23,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,356 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:23,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,368 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:23,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash 2007111828, now seen corresponding path program 5 times [2021-10-28 08:40:23,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:23,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494060288] [2021-10-28 08:40:23,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:23,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,379 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,388 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:23,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,390 INFO L85 PathProgramCache]: Analyzing trace with hash -254222659, now seen corresponding path program 8 times [2021-10-28 08:40:23,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:23,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122778841] [2021-10-28 08:40:23,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:23,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,407 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:23,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:23,500 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:23,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:23,501 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:23,501 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:23,501 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:23,501 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:23,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:23,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-28 08:40:23,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:23,502 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:23,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:23,562 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:23,563 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,563 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 08:40:23,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:23,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:23,583 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:40:23,583 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: [] [2021-10-28 08:40:23,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:23,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,618 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,628 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:23,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:23,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 08:40:23,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:23,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,685 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:23,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:23,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 08:40:23,734 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:23,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:23,736 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:23,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:23,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:23,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:23,736 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:23,736 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,737 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:23,737 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:23,737 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration10_Loop [2021-10-28 08:40:23,737 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:23,737 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:23,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:23,790 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:23,790 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:23,791 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,792 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,806 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 [2021-10-28 08:40:23,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 08:40:23,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:23,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:23,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:23,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:23,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:40:23,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:40:23,838 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:40:23,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:23,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 08:40:23,865 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,865 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 08:40:23,867 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 [2021-10-28 08:40:23,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:23,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:23,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:23,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:23,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:23,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:23,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:23,882 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:23,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:23,885 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:40:23,885 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:23,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:23,886 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:23,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 08:40:23,888 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:23,888 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:23,888 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:23,888 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 08:40:23,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:23,910 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:23,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:23,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:23,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:40:23,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,081 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 [2021-10-28 08:40:24,081 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) [2021-10-28 08:40:24,088 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. [2021-10-28 08:40:24,088 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 [2021-10-28 08:40:24,089 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) [2021-10-28 08:40:24,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:24,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:24,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,090 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:24,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,252 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,253 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 [2021-10-28 08:40:24,253 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) [2021-10-28 08:40:24,258 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. [2021-10-28 08:40:24,259 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 [2021-10-28 08:40:24,260 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) [2021-10-28 08:40:24,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:24,261 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:24,261 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,261 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,405 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,406 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 [2021-10-28 08:40:24,406 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) [2021-10-28 08:40:24,413 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. [2021-10-28 08:40:24,414 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 [2021-10-28 08:40:24,414 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) [2021-10-28 08:40:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 08:40:24,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:24,415 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,415 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:24,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,590 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,591 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 [2021-10-28 08:40:24,591 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) [2021-10-28 08:40:24,629 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. [2021-10-28 08:40:24,629 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 [2021-10-28 08:40:24,630 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) [2021-10-28 08:40:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 08:40:24,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:24,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,632 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:24,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:24,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:40:24,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:24,799 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:24,800 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 [2021-10-28 08:40:24,800 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) [2021-10-28 08:40:24,855 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,855 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,856 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,856 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,858 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,895 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,895 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,896 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,896 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,896 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,897 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,897 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,897 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:24,907 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 [2021-10-28 08:40:24,908 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 [2021-10-28 08:40:24,908 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) [2021-10-28 08:40:24,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 29 transitions. [2021-10-28 08:40:24,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 10 letters. [2021-10-28 08:40:24,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 15 letters. Loop has 10 letters. [2021-10-28 08:40:24,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 29 transitions. Stem has 5 letters. Loop has 20 letters. [2021-10-28 08:40:24,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:24,912 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 404 states and 547 transitions. [2021-10-28 08:40:24,918 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2021-10-28 08:40:24,921 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 404 states to 145 states and 187 transitions. [2021-10-28 08:40:24,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 08:40:24,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 08:40:24,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 145 states and 187 transitions. [2021-10-28 08:40:24,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:24,922 INFO L681 BuchiCegarLoop]: Abstraction has 145 states and 187 transitions. [2021-10-28 08:40:24,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states and 187 transitions. [2021-10-28 08:40:24,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 96. [2021-10-28 08:40:24,929 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) [2021-10-28 08:40:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 129 transitions. [2021-10-28 08:40:24,931 INFO L704 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-28 08:40:24,931 INFO L587 BuchiCegarLoop]: Abstraction has 96 states and 129 transitions. [2021-10-28 08:40:24,931 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 08:40:24,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 129 transitions. [2021-10-28 08:40:24,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2021-10-28 08:40:24,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:24,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:24,951 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:40:24,951 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [7, 4, 3] [2021-10-28 08:40:24,951 INFO L791 eck$LassoCheckResult]: Stem: 2705#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 2708#L12-2 assume !!(main_~c~0 > 0); 2733#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2725#L12-2 assume !!(main_~c~0 > 0); 2713#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 2701#L12-2 [2021-10-28 08:40:24,951 INFO L793 eck$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 [2021-10-28 08:40:24,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,952 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 6 times [2021-10-28 08:40:24,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:24,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316446512] [2021-10-28 08:40:24,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:24,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:24,958 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:24,961 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:24,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,962 INFO L85 PathProgramCache]: Analyzing trace with hash 822111324, now seen corresponding path program 6 times [2021-10-28 08:40:24,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:24,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240729861] [2021-10-28 08:40:24,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:24,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:24,982 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:24,988 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:24,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:24,989 INFO L85 PathProgramCache]: Analyzing trace with hash 128316933, now seen corresponding path program 9 times [2021-10-28 08:40:24,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:24,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563866646] [2021-10-28 08:40:24,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:24,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:24,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:25,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:25,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:25,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:25,164 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:25,164 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:25,164 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:25,164 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:25,164 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:25,164 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,164 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:25,164 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:25,164 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-28 08:40:25,164 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:25,164 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:25,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,172 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,225 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:25,225 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:25,225 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:25,227 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:25,229 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:25,229 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:25,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 08:40:25,283 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 08:40:25,283 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:25,284 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:25,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 08:40:25,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:25,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:25,319 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:25,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-10-28 08:40:25,322 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:25,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:25,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:25,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:25,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:25,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:25,322 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:25,322 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration11_Loop [2021-10-28 08:40:25,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:25,322 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:25,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:25,369 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:25,369 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:25,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:25,370 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:25,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 08:40:25,371 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 [2021-10-28 08:40:25,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:25,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:25,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:25,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:25,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:25,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:25,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:25,382 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:25,385 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:40:25,385 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:40:25,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:25,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:25,386 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:25,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 08:40:25,388 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:25,388 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:25,388 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:25,388 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 08:40:25,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:25,409 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:25,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:25,610 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:25,610 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 [2021-10-28 08:40:25,610 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) [2021-10-28 08:40:25,617 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. [2021-10-28 08:40:25,617 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 [2021-10-28 08:40:25,617 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) [2021-10-28 08:40:25,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:25,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-28 08:40:25,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:25,618 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:25,807 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 [2021-10-28 08:40:25,807 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) [2021-10-28 08:40:25,815 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. [2021-10-28 08:40:25,819 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 [2021-10-28 08:40:25,819 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) [2021-10-28 08:40:25,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:25,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-28 08:40:25,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:25,819 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:25,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:25,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:40:25,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:26,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:26,059 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 [2021-10-28 08:40:26,059 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) [2021-10-28 08:40:26,068 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. [2021-10-28 08:40:26,069 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 [2021-10-28 08:40:26,069 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) [2021-10-28 08:40:26,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 08:40:26,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-28 08:40:26,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:26,070 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:26,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:26,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:26,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:40:26,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:26,257 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:26,258 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 [2021-10-28 08:40:26,258 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) [2021-10-28 08:40:26,308 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. [2021-10-28 08:40:26,308 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 [2021-10-28 08:40:26,309 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) [2021-10-28 08:40:26,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 08:40:26,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-28 08:40:26,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:26,310 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:26,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:26,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:26,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:40:26,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:26,518 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:40:26,519 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 [2021-10-28 08:40:26,519 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) [2021-10-28 08:40:26,573 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,574 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,575 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,576 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,578 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,578 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,580 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,580 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,626 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,627 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,627 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,627 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,628 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,628 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,628 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,629 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,629 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,629 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,629 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,630 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,630 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,630 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,631 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,631 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,634 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,634 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,634 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,635 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,637 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,638 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,638 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,638 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,683 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,683 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,684 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,684 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,684 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,685 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,685 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,685 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,685 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,686 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,686 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,686 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,687 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,687 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,687 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,687 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,688 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,688 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,688 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,692 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,693 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,693 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,693 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,694 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,694 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,698 WARN L278 uchiComplementFKVNwa]: big8 [2021-10-28 08:40:26,737 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 [2021-10-28 08:40:26,738 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 [2021-10-28 08:40:26,738 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) [2021-10-28 08:40:26,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 39 transitions. [2021-10-28 08:40:26,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 14 letters. [2021-10-28 08:40:26,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:26,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 19 letters. Loop has 14 letters. [2021-10-28 08:40:26,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:26,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 39 transitions. Stem has 5 letters. Loop has 28 letters. [2021-10-28 08:40:26,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:26,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1787 states and 2714 transitions. [2021-10-28 08:40:26,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 33 [2021-10-28 08:40:26,770 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1787 states to 471 states and 636 transitions. [2021-10-28 08:40:26,770 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 08:40:26,770 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-10-28 08:40:26,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 636 transitions. [2021-10-28 08:40:26,771 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:40:26,771 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 636 transitions. [2021-10-28 08:40:26,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 636 transitions. [2021-10-28 08:40:26,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 260. [2021-10-28 08:40:26,786 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) [2021-10-28 08:40:26,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 376 transitions. [2021-10-28 08:40:26,788 INFO L704 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-28 08:40:26,788 INFO L587 BuchiCegarLoop]: Abstraction has 260 states and 376 transitions. [2021-10-28 08:40:26,788 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 08:40:26,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 376 transitions. [2021-10-28 08:40:26,791 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2021-10-28 08:40:26,791 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:40:26,791 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:40:26,792 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:40:26,792 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [9, 5, 4] [2021-10-28 08:40:26,792 INFO L791 eck$LassoCheckResult]: Stem: 5618#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~c~0;havoc main_~x~0;havoc main_~c~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := 1; 5623#L12-2 assume !!(main_~c~0 > 0); 5681#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5633#L12-2 assume !!(main_~c~0 > 0); 5630#L12 assume !(main_~x~0 > 100);main_~x~0 := 11 + main_~x~0;main_~c~0 := 1 + main_~c~0; 5614#L12-2 [2021-10-28 08:40:26,792 INFO L793 eck$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 [2021-10-28 08:40:26,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:26,793 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 7 times [2021-10-28 08:40:26,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:26,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496859669] [2021-10-28 08:40:26,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:26,793 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:26,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,798 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1476420572, now seen corresponding path program 7 times [2021-10-28 08:40:26,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:26,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680782711] [2021-10-28 08:40:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:26,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,826 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash 939927885, now seen corresponding path program 10 times [2021-10-28 08:40:26,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:40:26,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234458152] [2021-10-28 08:40:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:40:26,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:40:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,843 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:40:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:40:26,851 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:40:27,013 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:27,014 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:27,014 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:27,014 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:27,014 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:40:27,014 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,014 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:27,014 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:27,014 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-28 08:40:27,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:27,014 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:27,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,070 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:27,070 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:40:27,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:27,071 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:27,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:40:27,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:27,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 08:40:27,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:27,134 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:27,137 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:27,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:40:27,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:40:27,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 08:40:27,211 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:40:27,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 08:40:27,214 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:40:27,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:40:27,214 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:40:27,214 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:40:27,214 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:40:27,214 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,214 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:40:27,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:40:27,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration12_Loop [2021-10-28 08:40:27,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:40:27,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:40:27,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:40:27,269 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:40:27,269 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:40:27,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:27,270 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:27,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 08:40:27,271 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 [2021-10-28 08:40:27,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:40:27,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:40:27,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:40:27,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:40:27,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:40:27,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:40:27,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:40:27,282 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:40:27,284 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:40:27,284 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:40:27,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:40:27,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:40:27,285 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:40:27,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 08:40:27,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:40:27,286 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:40:27,286 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:40:27,286 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0) = 1*ULTIMATE.start_main_~c~0 Supporting invariants [] [2021-10-28 08:40:27,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 08:40:27,307 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:40:27,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:40:27,506 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 [2021-10-28 08:40:27,506 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) [2021-10-28 08:40:27,521 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. [2021-10-28 08:40:27,522 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 [2021-10-28 08:40:27,522 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) [2021-10-28 08:40:27,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:27,523 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-28 08:40:27,523 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:27,523 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:27,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:40:27,709 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 [2021-10-28 08:40:27,709 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) [2021-10-28 08:40:27,719 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. [2021-10-28 08:40:27,725 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 [2021-10-28 08:40:27,725 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) [2021-10-28 08:40:27,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 08:40:27,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-28 08:40:27,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:27,726 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:27,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:27,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:27,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:40:27,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:27,940 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:40:27,941 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 [2021-10-28 08:40:27,941 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) [2021-10-28 08:40:27,963 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. [2021-10-28 08:40:27,964 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 [2021-10-28 08:40:27,964 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) [2021-10-28 08:40:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2021-10-28 08:40:27,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-28 08:40:27,965 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:27,965 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:40:28,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:40:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:28,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:40:28,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:28,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:28,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:40:28,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 08:40:28,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:40:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 45 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-28 08:40:28,205 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 [2021-10-28 08:40:28,205 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) [2021-10-28 08:40:28,249 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. [2021-10-28 08:40:28,251 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 [2021-10-28 08:40:28,251 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) [2021-10-28 08:40:28,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2021-10-28 08:40:28,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 18 letters. [2021-10-28 08:40:28,251 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:28,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 23 letters. Loop has 18 letters. [2021-10-28 08:40:28,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:28,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 5 letters. Loop has 36 letters. [2021-10-28 08:40:28,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:40:28,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 724 transitions. [2021-10-28 08:40:28,256 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:40:28,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 0 states and 0 transitions. [2021-10-28 08:40:28,257 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:40:28,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:40:28,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:40:28,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:40:28,257 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:28,257 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:28,257 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:40:28,257 INFO L425 BuchiCegarLoop]: ======== Iteration 13============ [2021-10-28 08:40:28,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:40:28,258 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:40:28,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:40:28,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:40:28 BoogieIcfgContainer [2021-10-28 08:40:28,264 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:40:28,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:40:28,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:40:28,265 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:40:28,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:40:14" (3/4) ... [2021-10-28 08:40:28,269 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:40:28,269 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:40:28,270 INFO L168 Benchmark]: Toolchain (without parser) took 13919.77 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 72.4 MB in the beginning and 95.8 MB in the end (delta: -23.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:28,271 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:28,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 86.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:28,271 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.98 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:28,272 INFO L168 Benchmark]: Boogie Preprocessor took 19.11 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 84.2 MB in the end (delta: 918.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:28,272 INFO L168 Benchmark]: RCFGBuilder took 261.57 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 76.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:28,273 INFO L168 Benchmark]: BuchiAutomizer took 13350.83 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 76.6 MB in the beginning and 95.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:40:28,273 INFO L168 Benchmark]: Witness Printer took 4.29 ms. Allocated memory is still 161.5 MB. Free memory is still 95.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:40:28,275 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 109.1 MB. Free memory is still 89.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.14 ms. Allocated memory is still 109.1 MB. Free memory was 72.2 MB in the beginning and 86.7 MB in the end (delta: -14.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.98 ms. Allocated memory is still 109.1 MB. Free memory was 86.3 MB in the beginning and 85.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.11 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 84.2 MB in the end (delta: 918.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 261.57 ms. Allocated memory is still 109.1 MB. Free memory was 84.2 MB in the beginning and 76.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13350.83 ms. Allocated memory was 109.1 MB in the beginning and 161.5 MB in the end (delta: 52.4 MB). Free memory was 76.6 MB in the beginning and 95.8 MB in the end (delta: -19.2 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.29 ms. Allocated memory is still 161.5 MB. Free memory is still 95.8 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 13.2s and 13 iterations. TraceHistogramMax:9. Analysis of lassos took 7.4s. Construction of modules took 0.2s. Büchi inclusion checks took 5.1s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 14. Automata minimization 0.0s 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, 0.2s 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: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 11 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 11 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:40:28,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-10-28 08:40:28,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-10-28 08:40:28,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc43394c-5884-4382-acd4-e8730fbe7a14/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...