./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-dietlibc/strcspn.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-dietlibc/strcspn.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa --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 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 21:50:04,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 21:50:04,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 21:50:04,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 21:50:04,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 21:50:04,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 21:50:04,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 21:50:04,806 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 21:50:04,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 21:50:04,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 21:50:04,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 21:50:04,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 21:50:04,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 21:50:04,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 21:50:04,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 21:50:04,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 21:50:04,824 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 21:50:04,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 21:50:04,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 21:50:04,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 21:50:04,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 21:50:04,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 21:50:04,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 21:50:04,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 21:50:04,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 21:50:04,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 21:50:04,838 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 21:50:04,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 21:50:04,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 21:50:04,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 21:50:04,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 21:50:04,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 21:50:04,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 21:50:04,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 21:50:04,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 21:50:04,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 21:50:04,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 21:50:04,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 21:50:04,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 21:50:04,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 21:50:04,845 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 21:50:04,846 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 21:50:04,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 21:50:04,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 21:50:04,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 21:50:04,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 21:50:04,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 21:50:04,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 21:50:04,864 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 21:50:04,865 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 21:50:04,865 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 21:50:04,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 21:50:04,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 21:50:04,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 21:50:04,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 21:50:04,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 21:50:04,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 21:50:04,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 21:50:04,867 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 21:50:04,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 21:50:04,868 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_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3537cd0bed922b783c5bc2cf1d153661eb68e22062217013fbb7937014c3d604 [2021-12-06 21:50:05,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 21:50:05,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 21:50:05,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 21:50:05,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 21:50:05,058 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 21:50:05,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-dietlibc/strcspn.i [2021-12-06 21:50:05,098 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/data/17d340f02/83ec049974b34757a36c307203ad5a18/FLAGc82416657 [2021-12-06 21:50:05,513 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 21:50:05,514 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/sv-benchmarks/c/termination-dietlibc/strcspn.i [2021-12-06 21:50:05,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/data/17d340f02/83ec049974b34757a36c307203ad5a18/FLAGc82416657 [2021-12-06 21:50:05,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/data/17d340f02/83ec049974b34757a36c307203ad5a18 [2021-12-06 21:50:05,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 21:50:05,536 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 21:50:05,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 21:50:05,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 21:50:05,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 21:50:05,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ceda1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05, skipping insertion in model container [2021-12-06 21:50:05,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 21:50:05,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 21:50:05,755 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:50:05,761 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 21:50:05,787 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 21:50:05,806 INFO L208 MainTranslator]: Completed translation [2021-12-06 21:50:05,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05 WrapperNode [2021-12-06 21:50:05,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 21:50:05,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 21:50:05,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 21:50:05,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 21:50:05,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,837 INFO L137 Inliner]: procedures = 113, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2021-12-06 21:50:05,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 21:50:05,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 21:50:05,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 21:50:05,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 21:50:05,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 21:50:05,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 21:50:05,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 21:50:05,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 21:50:05,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (1/1) ... [2021-12-06 21:50:05,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:05,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:05,881 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:05,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 21:50:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 21:50:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 21:50:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 21:50:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 21:50:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 21:50:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 21:50:05,974 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 21:50:05,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 21:50:06,097 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 21:50:06,103 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 21:50:06,103 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 21:50:06,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:50:06 BoogieIcfgContainer [2021-12-06 21:50:06,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 21:50:06,106 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 21:50:06,106 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 21:50:06,109 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 21:50:06,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:50:06,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 09:50:05" (1/3) ... [2021-12-06 21:50:06,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5795fb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:50:06, skipping insertion in model container [2021-12-06 21:50:06,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:50:06,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 09:50:05" (2/3) ... [2021-12-06 21:50:06,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5795fb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 09:50:06, skipping insertion in model container [2021-12-06 21:50:06,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 21:50:06,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:50:06" (3/3) ... [2021-12-06 21:50:06,113 INFO L388 chiAutomizerObserver]: Analyzing ICFG strcspn.i [2021-12-06 21:50:06,150 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 21:50:06,150 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 21:50:06,150 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 21:50:06,150 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 21:50:06,150 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 21:50:06,150 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 21:50:06,151 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 21:50:06,151 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 21:50:06,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:06,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 21:50:06,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:06,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:06,185 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 21:50:06,185 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 21:50:06,185 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 21:50:06,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:06,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 21:50:06,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:06,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:06,187 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 21:50:06,187 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-06 21:50:06,193 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 18#L519true assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 11#L523true assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 7#L510-4true [2021-12-06 21:50:06,194 INFO L793 eck$LassoCheckResult]: Loop: 7#L510-4true call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 13#L510-1true assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 10#L511-4true assume !true; 15#L511-5true strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 12#L510-3true strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 7#L510-4true [2021-12-06 21:50:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2021-12-06 21:50:06,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:06,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831282415] [2021-12-06 21:50:06,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:06,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:06,369 INFO L85 PathProgramCache]: Analyzing trace with hash 44069891, now seen corresponding path program 1 times [2021-12-06 21:50:06,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:06,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815186752] [2021-12-06 21:50:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:06,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:06,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:50:06,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815186752] [2021-12-06 21:50:06,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815186752] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 21:50:06,411 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 21:50:06,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 21:50:06,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633034674] [2021-12-06 21:50:06,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 21:50:06,414 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 21:50:06,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:50:06,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 21:50:06,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 21:50:06,443 INFO L87 Difference]: Start difference. First operand has 17 states, 16 states have (on average 1.4375) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2021-12-06 21:50:06,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:50:06,447 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-12-06 21:50:06,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 21:50:06,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2021-12-06 21:50:06,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 21:50:06,455 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 12 states and 13 transitions. [2021-12-06 21:50:06,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2021-12-06 21:50:06,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 21:50:06,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2021-12-06 21:50:06,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:50:06,457 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 21:50:06,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2021-12-06 21:50:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-12-06 21:50:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-12-06 21:50:06,475 INFO L704 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 21:50:06,475 INFO L587 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-12-06 21:50:06,475 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 21:50:06,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 13 transitions. [2021-12-06 21:50:06,475 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-06 21:50:06,475 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:06,475 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:06,476 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 21:50:06,476 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:50:06,476 INFO L791 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 45#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 52#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 48#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 47#L510-4 [2021-12-06 21:50:06,476 INFO L793 eck$LassoCheckResult]: Loop: 47#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 49#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 42#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 43#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 53#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 46#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 47#L510-4 [2021-12-06 21:50:06,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 2 times [2021-12-06 21:50:06,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:06,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706705615] [2021-12-06 21:50:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:06,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,491 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,508 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:06,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:06,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1365737035, now seen corresponding path program 1 times [2021-12-06 21:50:06,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:06,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720825422] [2021-12-06 21:50:06,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:06,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:06,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,523 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:06,524 INFO L85 PathProgramCache]: Analyzing trace with hash 736220402, now seen corresponding path program 1 times [2021-12-06 21:50:06,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:06,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946821664] [2021-12-06 21:50:06,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:06,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,548 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:06,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:07,076 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:50:07,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:50:07,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:50:07,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:50:07,077 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:50:07,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:50:07,077 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:50:07,077 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration2_Lasso [2021-12-06 21:50:07,077 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:50:07,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:50:07,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:07,557 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:50:07,560 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:50:07,561 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 21:50:07,563 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 [2021-12-06 21:50:07,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,575 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,578 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:07,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,598 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 21:50:07,600 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 [2021-12-06 21:50:07,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:07,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:07,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:07,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:07,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 21:50:07,645 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 [2021-12-06 21:50:07,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,659 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 21:50:07,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,679 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 21:50:07,680 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 [2021-12-06 21:50:07,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:07,721 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 21:50:07,723 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 [2021-12-06 21:50:07,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:07,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,730 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 21:50:07,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,731 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 21:50:07,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:07,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 21:50:07,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,752 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 21:50:07,753 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 [2021-12-06 21:50:07,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,765 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,765 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,775 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 21:50:07,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,794 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 21:50:07,796 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 [2021-12-06 21:50:07,803 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,803 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,803 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,803 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,810 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 21:50:07,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,829 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 21:50:07,830 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 [2021-12-06 21:50:07,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,843 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 21:50:07,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,862 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 21:50:07,863 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 [2021-12-06 21:50:07,870 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,875 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,875 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:07,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 21:50:07,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,914 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 21:50:07,916 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 [2021-12-06 21:50:07,924 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:07,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:07,925 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:07,925 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:07,929 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:07,929 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:07,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:50:07,977 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2021-12-06 21:50:07,977 INFO L444 ModelExtractionUtils]: 8 out of 25 variables were initially zero. Simplification set additionally 12 variables to zero. [2021-12-06 21:50:07,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:07,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:07,980 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:07,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 21:50:07,985 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:50:07,995 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 21:50:07,995 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:50:07,995 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in_len~0#1, ULTIMATE.start_strcspn_~s#1.offset) = 1*ULTIMATE.start_main_~in_len~0#1 - 1*ULTIMATE.start_strcspn_~s#1.offset Supporting invariants [1*ULTIMATE.start_main_~in_len~0#1 - 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10#1.base)_1 >= 0] [2021-12-06 21:50:08,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 21:50:08,060 INFO L297 tatePredicateManager]: 14 out of 16 supporting invariants were superfluous and have been removed [2021-12-06 21:50:08,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:08,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:08,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-06 21:50:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:08,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-12-06 21:50:08,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:08,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 21:50:08,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:08,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:08,237 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-06 21:50:08,238 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-12-06 21:50:08,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-12-06 21:50:08,301 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 13 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 20 states and 23 transitions. Complement of second has 5 states. [2021-12-06 21:50:08,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:08,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-12-06 21:50:08,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-12-06 21:50:08,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 21:50:08,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:08,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 21:50:08,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:08,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 12 letters. [2021-12-06 21:50:08,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:08,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-12-06 21:50:08,307 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:08,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 18 states and 21 transitions. [2021-12-06 21:50:08,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2021-12-06 21:50:08,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 21:50:08,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 21 transitions. [2021-12-06 21:50:08,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 21:50:08,308 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-06 21:50:08,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 21 transitions. [2021-12-06 21:50:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-12-06 21:50:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:08,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-12-06 21:50:08,311 INFO L704 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-06 21:50:08,311 INFO L587 BuchiCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-12-06 21:50:08,311 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 21:50:08,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 21 transitions. [2021-12-06 21:50:08,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:08,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:08,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:08,312 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-12-06 21:50:08,312 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 21:50:08,312 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 197#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 208#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 202#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 203#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 206#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 198#L511-4 [2021-12-06 21:50:08,312 INFO L793 eck$LassoCheckResult]: Loop: 198#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 199#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 209#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 210#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 198#L511-4 [2021-12-06 21:50:08,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:08,313 INFO L85 PathProgramCache]: Analyzing trace with hash 889571309, now seen corresponding path program 1 times [2021-12-06 21:50:08,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:08,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629050156] [2021-12-06 21:50:08,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:08,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:08,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,333 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,350 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:08,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:08,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 1 times [2021-12-06 21:50:08,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:08,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993569439] [2021-12-06 21:50:08,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:08,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:08,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,355 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:08,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,359 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:08,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:08,359 INFO L85 PathProgramCache]: Analyzing trace with hash 736222132, now seen corresponding path program 1 times [2021-12-06 21:50:08,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:08,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993058876] [2021-12-06 21:50:08,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:08,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:08,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,377 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:08,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:08,394 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:08,911 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:50:08,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:50:08,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:50:08,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:50:08,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:50:08,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:08,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:50:08,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:50:08,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration3_Lasso [2021-12-06 21:50:08,912 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:50:08,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:50:08,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:08,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:09,420 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:50:09,420 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:50:09,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:09,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:09,421 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:09,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 21:50:09,422 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 [2021-12-06 21:50:09,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:09,429 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:09,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:09,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:09,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:09,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:09,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:09,430 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:09,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-06 21:50:09,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:09,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:09,449 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:09,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 21:50:09,450 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 [2021-12-06 21:50:09,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:09,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:09,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:09,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:09,459 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:09,459 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:09,462 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:09,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 21:50:09,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:09,481 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:09,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 21:50:09,482 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 [2021-12-06 21:50:09,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:09,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:09,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:09,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:09,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:09,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:09,510 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:50:09,556 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2021-12-06 21:50:09,556 INFO L444 ModelExtractionUtils]: 26 out of 49 variables were initially zero. Simplification set additionally 19 variables to zero. [2021-12-06 21:50:09,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:09,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:09,557 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:09,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 21:50:09,558 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:50:09,565 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 21:50:09,565 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:50:09,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_2, ULTIMATE.start_strcspn_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_2 - 1*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [1*ULTIMATE.start_strcspn_~reject#1.offset >= 0] [2021-12-06 21:50:09,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:09,630 INFO L297 tatePredicateManager]: 17 out of 19 supporting invariants were superfluous and have been removed [2021-12-06 21:50:09,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:09,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-06 21:50:09,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:09,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-06 21:50:09,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:09,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 21:50:09,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:09,714 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2021-12-06 21:50:09,714 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-12-06 21:50:09,739 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 21 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 45 states and 51 transitions. Complement of second has 6 states. [2021-12-06 21:50:09,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:09,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2021-12-06 21:50:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-06 21:50:09,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 4 letters. [2021-12-06 21:50:09,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:09,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2021-12-06 21:50:09,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:09,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 8 letters. [2021-12-06 21:50:09,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:09,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 51 transitions. [2021-12-06 21:50:09,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:09,743 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 29 states and 33 transitions. [2021-12-06 21:50:09,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-06 21:50:09,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 21:50:09,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 33 transitions. [2021-12-06 21:50:09,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 21:50:09,743 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 33 transitions. [2021-12-06 21:50:09,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 33 transitions. [2021-12-06 21:50:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2021-12-06 21:50:09,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.125) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-12-06 21:50:09,745 INFO L704 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-06 21:50:09,745 INFO L587 BuchiCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-12-06 21:50:09,745 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 21:50:09,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 27 transitions. [2021-12-06 21:50:09,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:09,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:09,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:09,746 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:50:09,746 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 21:50:09,746 INFO L791 eck$LassoCheckResult]: Stem: 393#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 394#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 409#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 401#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 402#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 411#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 415#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 412#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 410#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 399#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 400#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 403#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 395#L511-4 [2021-12-06 21:50:09,746 INFO L793 eck$LassoCheckResult]: Loop: 395#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 396#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 405#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 406#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 395#L511-4 [2021-12-06 21:50:09,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:09,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1161797001, now seen corresponding path program 2 times [2021-12-06 21:50:09,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:09,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275659845] [2021-12-06 21:50:09,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:09,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:09,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:09,759 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:09,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:09,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:09,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 2 times [2021-12-06 21:50:09,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:09,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761835973] [2021-12-06 21:50:09,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:09,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:09,776 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:09,780 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:09,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -967302850, now seen corresponding path program 1 times [2021-12-06 21:50:09,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:09,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718121420] [2021-12-06 21:50:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:09,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:09,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 21:50:09,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718121420] [2021-12-06 21:50:09,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718121420] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 21:50:09,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239403538] [2021-12-06 21:50:09,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:09,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 21:50:09,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:09,887 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 21:50:09,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-06 21:50:09,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:09,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-06 21:50:09,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:09,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-12-06 21:50:10,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:10,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 21:50:10,038 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-12-06 21:50:10,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 11 [2021-12-06 21:50:10,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:10,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239403538] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 21:50:10,051 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 21:50:10,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 16 [2021-12-06 21:50:10,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109633255] [2021-12-06 21:50:10,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 21:50:10,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 21:50:10,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-06 21:50:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-12-06 21:50:10,095 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. cyclomatic complexity: 6 Second operand has 16 states, 16 states have (on average 2.0625) internal successors, (33), 16 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 21:50:10,162 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2021-12-06 21:50:10,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 21:50:10,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 51 transitions. [2021-12-06 21:50:10,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:10,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 36 states and 39 transitions. [2021-12-06 21:50:10,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-12-06 21:50:10,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-12-06 21:50:10,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 39 transitions. [2021-12-06 21:50:10,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 21:50:10,165 INFO L681 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-12-06 21:50:10,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 39 transitions. [2021-12-06 21:50:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 27. [2021-12-06 21:50:10,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 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) [2021-12-06 21:50:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2021-12-06 21:50:10,167 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-06 21:50:10,167 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 30 transitions. [2021-12-06 21:50:10,167 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 21:50:10,167 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 30 transitions. [2021-12-06 21:50:10,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:10,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:10,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:10,168 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 21:50:10,168 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 21:50:10,168 INFO L791 eck$LassoCheckResult]: Stem: 590#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 591#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 603#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 592#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 593#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 604#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 588#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 589#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 612#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 611#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 610#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 608#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 605#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 594#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 595#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 596#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 586#L511-4 [2021-12-06 21:50:10,168 INFO L793 eck$LassoCheckResult]: Loop: 586#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 587#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 599#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 600#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 586#L511-4 [2021-12-06 21:50:10,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:10,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1375356158, now seen corresponding path program 2 times [2021-12-06 21:50:10,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:10,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262583597] [2021-12-06 21:50:10,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:10,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,185 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,203 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:10,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:10,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 3 times [2021-12-06 21:50:10,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:10,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292082328] [2021-12-06 21:50:10,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:10,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,209 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:10,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:10,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:10,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1858115515, now seen corresponding path program 3 times [2021-12-06 21:50:10,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:10,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874650632] [2021-12-06 21:50:10,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:10,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,230 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:10,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:10,985 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:50:10,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:50:10,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:50:10,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:50:10,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:50:10,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:10,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:50:10,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:50:10,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration5_Lasso [2021-12-06 21:50:10,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:50:10,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:50:10,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:10,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:11,669 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:50:11,669 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:50:11,669 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,670 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 21:50:11,677 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 [2021-12-06 21:50:11,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:11,685 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:11,687 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 21:50:11,705 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,706 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 21:50:11,707 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 [2021-12-06 21:50:11,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:11,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,734 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 21:50:11,736 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 [2021-12-06 21:50:11,742 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,742 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,742 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,742 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,742 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,743 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,743 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 21:50:11,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,763 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 21:50:11,786 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 [2021-12-06 21:50:11,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,795 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,795 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,795 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2021-12-06 21:50:11,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,817 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 21:50:11,819 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:50:11,825 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,826 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,826 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,826 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,827 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 21:50:11,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,846 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 21:50:11,848 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 [2021-12-06 21:50:11,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:11,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:11,858 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 21:50:11,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,877 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 21:50:11,878 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 [2021-12-06 21:50:11,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,885 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,886 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,886 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,886 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 21:50:11,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,905 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-12-06 21:50:11,906 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 [2021-12-06 21:50:11,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,913 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,913 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:11,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:11,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-12-06 21:50:11,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,935 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 21:50:11,937 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 [2021-12-06 21:50:11,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:11,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,944 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:11,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:11,945 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 21:50:11,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,964 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 21:50:11,965 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 [2021-12-06 21:50:11,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:11,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:11,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:11,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:11,972 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:11,973 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:11,975 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:11,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:11,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:11,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:11,994 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:11,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 21:50:11,995 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 [2021-12-06 21:50:12,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:12,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:12,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:12,004 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:12,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:12,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,023 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 21:50:12,024 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 [2021-12-06 21:50:12,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:12,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,031 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:12,031 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:12,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:12,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-12-06 21:50:12,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,051 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 21:50:12,052 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 [2021-12-06 21:50:12,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:12,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:12,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:12,060 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:12,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 21:50:12,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,079 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-12-06 21:50:12,080 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 [2021-12-06 21:50:12,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:12,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,088 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:12,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:12,089 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:12,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:12,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,109 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-12-06 21:50:12,110 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 [2021-12-06 21:50:12,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,117 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:12,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:12,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:12,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-12-06 21:50:12,139 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,139 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-12-06 21:50:12,140 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 [2021-12-06 21:50:12,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:12,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:12,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:12,148 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:12,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:12,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:12,169 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:50:12,217 INFO L443 ModelExtractionUtils]: Simplification made 25 calls to the SMT solver. [2021-12-06 21:50:12,218 INFO L444 ModelExtractionUtils]: 8 out of 49 variables were initially zero. Simplification set additionally 38 variables to zero. [2021-12-06 21:50:12,218 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:12,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:12,219 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:12,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-12-06 21:50:12,219 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:50:12,227 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 21:50:12,227 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:50:12,227 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_strcspn_~i~0#1, v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3) = -2*ULTIMATE.start_strcspn_~i~0#1 + 3*v_rep(select #length ULTIMATE.start_strcspn_~reject#1.base)_3 Supporting invariants [] [2021-12-06 21:50:12,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-12-06 21:50:12,331 INFO L297 tatePredicateManager]: 28 out of 29 supporting invariants were superfluous and have been removed [2021-12-06 21:50:12,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:12,462 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2021-12-06 21:50:12,463 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 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 27 states and 30 transitions. Complement of second has 5 states. [2021-12-06 21:50:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:12,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-12-06 21:50:12,492 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-06 21:50:12,493 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:12,493 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:12,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-12-06 21:50:12,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:12,626 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 3 loop predicates [2021-12-06 21:50:12,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 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 27 states and 30 transitions. Complement of second has 5 states. [2021-12-06 21:50:12,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-12-06 21:50:12,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-06 21:50:12,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:12,647 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:12,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 20 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:12,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-06 21:50:12,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:12,781 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 3 loop predicates [2021-12-06 21:50:12,781 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6 Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 30 transitions. cyclomatic complexity: 6. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 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 56 states and 63 transitions. Complement of second has 11 states. [2021-12-06 21:50:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 4 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 21:50:12,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:12,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2021-12-06 21:50:12,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 4 letters. [2021-12-06 21:50:12,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:12,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 20 letters. Loop has 4 letters. [2021-12-06 21:50:12,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:12,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 16 letters. Loop has 8 letters. [2021-12-06 21:50:12,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:12,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 63 transitions. [2021-12-06 21:50:12,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:12,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 42 states and 46 transitions. [2021-12-06 21:50:12,843 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-06 21:50:12,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 21:50:12,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 46 transitions. [2021-12-06 21:50:12,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 21:50:12,843 INFO L681 BuchiCegarLoop]: Abstraction has 42 states and 46 transitions. [2021-12-06 21:50:12,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 46 transitions. [2021-12-06 21:50:12,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2021-12-06 21:50:12,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 37 states have (on average 1.1081081081081081) internal successors, (41), 36 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) [2021-12-06 21:50:12,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2021-12-06 21:50:12,845 INFO L704 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-12-06 21:50:12,845 INFO L587 BuchiCegarLoop]: Abstraction has 37 states and 41 transitions. [2021-12-06 21:50:12,846 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 21:50:12,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states and 41 transitions. [2021-12-06 21:50:12,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:12,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:12,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:12,847 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-12-06 21:50:12,847 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 21:50:12,847 INFO L791 eck$LassoCheckResult]: Stem: 1097#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1098#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1109#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1101#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1102#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1111#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1123#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1121#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1120#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1112#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1113#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1122#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1110#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1099#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1100#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1104#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1095#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1096#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1107#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1108#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1119#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1118#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1117#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1116#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1114#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1103#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1093#L511-4 [2021-12-06 21:50:12,847 INFO L793 eck$LassoCheckResult]: Loop: 1093#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1094#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1105#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1106#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1093#L511-4 [2021-12-06 21:50:12,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1550213327, now seen corresponding path program 4 times [2021-12-06 21:50:12,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:12,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503640819] [2021-12-06 21:50:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:12,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,859 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:12,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:12,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 4 times [2021-12-06 21:50:12,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:12,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578718410] [2021-12-06 21:50:12,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:12,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,874 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:12,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash 229061526, now seen corresponding path program 5 times [2021-12-06 21:50:12,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:12,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42483857] [2021-12-06 21:50:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:12,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,888 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:12,901 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:14,033 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:50:14,033 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:50:14,033 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:50:14,033 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:50:14,033 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:50:14,033 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:14,033 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:50:14,033 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:50:14,033 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration6_Lasso [2021-12-06 21:50:14,033 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:50:14,033 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:50:14,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:14,631 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2021-12-06 21:50:15,422 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:50:15,422 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:50:15,423 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,424 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-12-06 21:50:15,426 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 [2021-12-06 21:50:15,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,433 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,434 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-12-06 21:50:15,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,452 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-12-06 21:50:15,454 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 [2021-12-06 21:50:15,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,462 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,484 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-12-06 21:50:15,485 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 [2021-12-06 21:50:15,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,493 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-12-06 21:50:15,511 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,512 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-12-06 21:50:15,513 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 [2021-12-06 21:50:15,519 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,520 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,520 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,521 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-12-06 21:50:15,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,539 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-12-06 21:50:15,540 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 [2021-12-06 21:50:15,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,548 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,567 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-12-06 21:50:15,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-12-06 21:50:15,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,596 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-12-06 21:50:15,597 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 [2021-12-06 21:50:15,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,604 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,605 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,605 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,625 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-12-06 21:50:15,626 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 [2021-12-06 21:50:15,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,634 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,634 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,634 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,654 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-12-06 21:50:15,655 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 [2021-12-06 21:50:15,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,663 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,663 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-12-06 21:50:15,684 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,684 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-12-06 21:50:15,686 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 [2021-12-06 21:50:15,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-12-06 21:50:15,713 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,713 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-12-06 21:50:15,715 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 [2021-12-06 21:50:15,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,722 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,723 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,741 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,741 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-12-06 21:50:15,743 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 [2021-12-06 21:50:15,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,750 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,751 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,751 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,752 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-12-06 21:50:15,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,771 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-12-06 21:50:15,772 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 [2021-12-06 21:50:15,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,779 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,779 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,780 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-12-06 21:50:15,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,798 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-12-06 21:50:15,800 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 [2021-12-06 21:50:15,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,809 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,826 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2021-12-06 21:50:15,826 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,827 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-12-06 21:50:15,828 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 [2021-12-06 21:50:15,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:15,835 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,835 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,835 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,835 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:15,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:15,836 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-12-06 21:50:15,854 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,855 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-12-06 21:50:15,856 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 [2021-12-06 21:50:15,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,864 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,864 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,868 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:15,886 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,887 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-12-06 21:50:15,888 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 [2021-12-06 21:50:15,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,896 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,896 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,899 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-12-06 21:50:15,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,917 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-12-06 21:50:15,919 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 [2021-12-06 21:50:15,925 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,925 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,927 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,929 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:15,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-12-06 21:50:15,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:15,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:15,948 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:15,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-12-06 21:50:15,948 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 [2021-12-06 21:50:15,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:15,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:15,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:15,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:15,963 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:15,963 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:15,980 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:50:16,010 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2021-12-06 21:50:16,010 INFO L444 ModelExtractionUtils]: 32 out of 52 variables were initially zero. Simplification set additionally 17 variables to zero. [2021-12-06 21:50:16,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:16,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:16,011 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:16,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-12-06 21:50:16,012 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:50:16,020 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-06 21:50:16,020 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:50:16,021 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_4, ULTIMATE.start_strcspn_~i~0#1) = 5*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_4 - 2*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [] [2021-12-06 21:50:16,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-12-06 21:50:16,156 INFO L297 tatePredicateManager]: 38 out of 40 supporting invariants were superfluous and have been removed [2021-12-06 21:50:16,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:16,394 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2021-12-06 21:50:16,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:16,419 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 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 41 transitions. Complement of second has 5 states. [2021-12-06 21:50:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:16,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-12-06 21:50:16,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2021-12-06 21:50:16,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:16,420 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:16,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:16,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-12-06 21:50:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:16,658 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.5 stem predicates 3 loop predicates [2021-12-06 21:50:16,658 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:16,685 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 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 41 transitions. Complement of second has 5 states. [2021-12-06 21:50:16,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 3 stem states 0 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:16,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:16,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2021-12-06 21:50:16,686 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 26 letters. Loop has 4 letters. [2021-12-06 21:50:16,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:16,686 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:16,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 28 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:16,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-06 21:50:16,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:16,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:16,925 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.5 stem predicates 3 loop predicates [2021-12-06 21:50:16,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8 Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:17,015 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states and 41 transitions. cyclomatic complexity: 8. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 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 66 states and 74 transitions. Complement of second has 13 states. [2021-12-06 21:50:17,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 5 stem states 2 non-accepting loop states 2 accepting loop states [2021-12-06 21:50:17,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 50 transitions. [2021-12-06 21:50:17,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 4 letters. [2021-12-06 21:50:17,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:17,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 30 letters. Loop has 4 letters. [2021-12-06 21:50:17,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:17,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 50 transitions. Stem has 26 letters. Loop has 8 letters. [2021-12-06 21:50:17,017 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:17,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 74 transitions. [2021-12-06 21:50:17,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:17,019 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 57 transitions. [2021-12-06 21:50:17,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-12-06 21:50:17,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-12-06 21:50:17,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 57 transitions. [2021-12-06 21:50:17,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 21:50:17,019 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2021-12-06 21:50:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 57 transitions. [2021-12-06 21:50:17,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 47. [2021-12-06 21:50:17,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 46 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:17,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2021-12-06 21:50:17,022 INFO L704 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-12-06 21:50:17,022 INFO L587 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2021-12-06 21:50:17,022 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-12-06 21:50:17,022 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 52 transitions. [2021-12-06 21:50:17,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-06 21:50:17,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 21:50:17,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 21:50:17,023 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2021-12-06 21:50:17,023 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-06 21:50:17,023 INFO L791 eck$LassoCheckResult]: Stem: 1781#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 1782#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet9#1, main_#t~malloc10#1.base, main_#t~malloc10#1.offset, main_#t~nondet11#1, main_#t~malloc12#1.base, main_#t~malloc12#1.offset, main_#t~ret13#1, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 1793#L519 assume !(main_~in_len~0#1 < 1);call main_#t~malloc10#1.base, main_#t~malloc10#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc10#1.base, main_#t~malloc10#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet11#1;havoc main_#t~nondet11#1; 1787#L523 assume !(main_~out_len~0#1 < 1);call main_#t~malloc12#1.base, main_#t~malloc12#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc12#1.base, main_#t~malloc12#1.offset;call write~int(0, main_~out~0#1.base, main_~out~0#1.offset + (main_~out_len~0#1 - 1), 1);assume { :begin_inline_strcspn } true;strcspn_#in~s#1.base, strcspn_#in~s#1.offset, strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset := main_~in~0#1.base, main_~in~0#1.offset, main_~out~0#1.base, main_~out~0#1.offset;havoc strcspn_#res#1;havoc strcspn_#t~mem4#1, strcspn_#t~mem5#1, strcspn_#t~pre3#1, strcspn_#t~mem6#1, strcspn_#t~pre7#1, strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset, strcspn_#t~mem8#1, strcspn_~s#1.base, strcspn_~s#1.offset, strcspn_~reject#1.base, strcspn_~reject#1.offset, strcspn_~l~0#1, strcspn_~i~0#1;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_#in~s#1.base, strcspn_#in~s#1.offset;strcspn_~reject#1.base, strcspn_~reject#1.offset := strcspn_#in~reject#1.base, strcspn_#in~reject#1.offset;strcspn_~l~0#1 := 0;havoc strcspn_~i~0#1; 1788#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1798#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1827#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1825#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1796#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1797#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1801#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1809#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1799#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1789#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1790#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1792#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1785#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1786#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1800#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1826#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1824#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1823#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1822#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1821#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1820#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1819#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1817#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1814#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1816#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1815#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1813#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1806#L511-1 assume !(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1; 1805#L511-5 strcspn_#t~pre7#1 := 1 + strcspn_~l~0#1;strcspn_~l~0#1 := 1 + strcspn_~l~0#1;havoc strcspn_#t~pre7#1; 1804#L510-3 strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;strcspn_~s#1.base, strcspn_~s#1.offset := strcspn_~s#1.base, 1 + strcspn_~s#1.offset;havoc strcspn_#t~pre2#1.base, strcspn_#t~pre2#1.offset; 1802#L510-4 call strcspn_#t~mem8#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1); 1791#L510-1 assume !!(0 != strcspn_#t~mem8#1);havoc strcspn_#t~mem8#1;strcspn_~i~0#1 := 0; 1783#L511-4 [2021-12-06 21:50:17,024 INFO L793 eck$LassoCheckResult]: Loop: 1783#L511-4 call strcspn_#t~mem6#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1784#L511-1 assume !!(0 != strcspn_#t~mem6#1);havoc strcspn_#t~mem6#1;call strcspn_#t~mem4#1 := read~int(strcspn_~s#1.base, strcspn_~s#1.offset, 1);call strcspn_#t~mem5#1 := read~int(strcspn_~reject#1.base, strcspn_~reject#1.offset + strcspn_~i~0#1, 1); 1794#L512 assume !(strcspn_#t~mem4#1 == strcspn_#t~mem5#1);havoc strcspn_#t~mem4#1;havoc strcspn_#t~mem5#1; 1795#L511-3 strcspn_#t~pre3#1 := 1 + strcspn_~i~0#1;strcspn_~i~0#1 := 1 + strcspn_~i~0#1;havoc strcspn_#t~pre3#1; 1783#L511-4 [2021-12-06 21:50:17,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:17,024 INFO L85 PathProgramCache]: Analyzing trace with hash -43865248, now seen corresponding path program 6 times [2021-12-06 21:50:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:17,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979161706] [2021-12-06 21:50:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:17,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,049 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1698248, now seen corresponding path program 5 times [2021-12-06 21:50:17,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:17,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925314097] [2021-12-06 21:50:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:17,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,052 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash -345387609, now seen corresponding path program 7 times [2021-12-06 21:50:17,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 21:50:17,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030557229] [2021-12-06 21:50:17,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 21:50:17,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 21:50:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,066 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 21:50:17,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 21:50:17,080 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 21:50:18,473 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 21:50:18,473 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 21:50:18,473 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 21:50:18,473 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 21:50:18,473 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 21:50:18,473 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:18,473 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 21:50:18,473 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 21:50:18,473 INFO L133 ssoRankerPreferences]: Filename of dumped script: strcspn.i_Iteration7_Lasso [2021-12-06 21:50:18,473 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 21:50:18,473 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 21:50:18,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:18,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 21:50:19,106 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2021-12-06 21:50:24,008 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 21:50:24,008 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 21:50:24,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,009 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-12-06 21:50:24,010 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 [2021-12-06 21:50:24,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-12-06 21:50:24,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,036 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-12-06 21:50:24,038 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 [2021-12-06 21:50:24,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:24,046 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:24,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-12-06 21:50:24,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,067 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-12-06 21:50:24,068 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 [2021-12-06 21:50:24,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,076 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:24,076 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:24,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2021-12-06 21:50:24,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,097 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-12-06 21:50:24,098 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 [2021-12-06 21:50:24,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,107 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-12-06 21:50:24,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,126 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-12-06 21:50:24,127 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 [2021-12-06 21:50:24,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-12-06 21:50:24,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,154 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-12-06 21:50:24,155 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 [2021-12-06 21:50:24,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-12-06 21:50:24,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,182 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-12-06 21:50:24,183 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 [2021-12-06 21:50:24,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,191 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-12-06 21:50:24,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,210 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-12-06 21:50:24,212 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 [2021-12-06 21:50:24,219 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,219 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 21:50:24,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,219 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,220 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 21:50:24,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 21:50:24,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-12-06 21:50:24,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,239 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-12-06 21:50:24,240 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 [2021-12-06 21:50:24,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,248 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:24,248 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:24,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 21:50:24,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-12-06 21:50:24,268 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,269 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-12-06 21:50:24,270 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 [2021-12-06 21:50:24,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 21:50:24,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 21:50:24,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 21:50:24,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 21:50:24,282 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 21:50:24,282 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 21:50:24,297 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 21:50:24,330 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2021-12-06 21:50:24,330 INFO L444 ModelExtractionUtils]: 6 out of 46 variables were initially zero. Simplification set additionally 36 variables to zero. [2021-12-06 21:50:24,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 21:50:24,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 21:50:24,331 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 21:50:24,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-12-06 21:50:24,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 21:50:24,340 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-12-06 21:50:24,340 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 21:50:24,340 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_5, ULTIMATE.start_strcspn_~i~0#1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc12#1.base)_5 - 1*ULTIMATE.start_strcspn_~i~0#1 Supporting invariants [1*ULTIMATE.start_strcspn_#in~s#1.offset >= 0] [2021-12-06 21:50:24,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-12-06 21:50:24,503 INFO L297 tatePredicateManager]: 44 out of 47 supporting invariants were superfluous and have been removed [2021-12-06 21:50:24,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:24,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 21:50:24,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:24,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 21:50:24,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:24,744 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 21:50:24,744 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:24,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-12-06 21:50:24,778 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 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 55 states and 61 transitions. Complement of second has 7 states. [2021-12-06 21:50:24,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-12-06 21:50:24,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2021-12-06 21:50:24,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:24,779 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:24,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 21:50:24,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:24,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:24,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 21:50:24,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:25,011 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 21:50:25,011 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:25,042 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 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 55 states and 61 transitions. Complement of second has 7 states. [2021-12-06 21:50:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:25,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-12-06 21:50:25,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 36 letters. Loop has 4 letters. [2021-12-06 21:50:25,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:25,044 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 21:50:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 21:50:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:25,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-06 21:50:25,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 21:50:25,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 21:50:25,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 21:50:25,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 21:50:25,266 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.4 stem predicates 2 loop predicates [2021-12-06 21:50:25,266 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10 Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:25,312 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 52 transitions. cyclomatic complexity: 10. Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 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 80 states and 91 transitions. Complement of second has 9 states. [2021-12-06 21:50:25,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 4 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-06 21:50:25,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 21:50:25,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 32 transitions. [2021-12-06 21:50:25,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 36 letters. Loop has 4 letters. [2021-12-06 21:50:25,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:25,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 40 letters. Loop has 4 letters. [2021-12-06 21:50:25,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:25,314 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 32 transitions. Stem has 36 letters. Loop has 8 letters. [2021-12-06 21:50:25,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 21:50:25,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 91 transitions. [2021-12-06 21:50:25,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:50:25,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-06 21:50:25,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-06 21:50:25,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-06 21:50:25,316 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-12-06 21:50:25,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-06 21:50:25,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-06 21:50:25,316 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-06 21:50:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 09:50:25 BoogieIcfgContainer [2021-12-06 21:50:25,320 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 21:50:25,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 21:50:25,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 21:50:25,321 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 21:50:25,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 09:50:06" (3/4) ... [2021-12-06 21:50:25,323 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 21:50:25,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 21:50:25,323 INFO L158 Benchmark]: Toolchain (without parser) took 19786.99ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 82.4MB in the beginning and 119.6MB in the end (delta: -37.3MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2021-12-06 21:50:25,324 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:50:25,324 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.23ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 67.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-06 21:50:25,324 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.74ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 65.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:50:25,324 INFO L158 Benchmark]: Boogie Preprocessor took 18.27ms. Allocated memory is still 107.0MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 21:50:25,324 INFO L158 Benchmark]: RCFGBuilder took 249.00ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 53.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 21:50:25,325 INFO L158 Benchmark]: BuchiAutomizer took 19214.14ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 53.1MB in the beginning and 119.6MB in the end (delta: -66.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:50:25,325 INFO L158 Benchmark]: Witness Printer took 2.31ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 21:50:25,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 73.4MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.23ms. Allocated memory is still 107.0MB. Free memory was 82.2MB in the beginning and 67.0MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.74ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 65.1MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.27ms. Allocated memory is still 107.0MB. Free memory was 65.1MB in the beginning and 63.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 249.00ms. Allocated memory is still 107.0MB. Free memory was 63.8MB in the beginning and 53.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 19214.14ms. Allocated memory was 107.0MB in the beginning and 159.4MB in the end (delta: 52.4MB). Free memory was 53.1MB in the beginning and 119.6MB in the end (delta: -66.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.31ms. Allocated memory is still 159.4MB. Free memory is still 119.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 2 deterministic, 3 nondeterministic). One deterministic module has affine ranking function in_len + -1 * s and consists of 4 locations. One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -2 * i + 3 * unknown-#length-unknown[reject] and consists of 8 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[__builtin_alloca (out_len)] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (out_len)] + -1 * i and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 16 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 19.1s and 8 iterations. TraceHistogramMax:6. Analysis of lassos took 16.4s. Construction of modules took 0.1s. Büchi inclusion checks took 2.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 24 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 47 states and ocurred in iteration 6. Nontrivial modules had stage [2, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 331 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 331 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 180 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 133 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital265 mio100 ax100 hnf99 lsp95 ukn78 mio100 lsp42 div100 bol100 ite100 ukn100 eq184 hnf89 smp95 dnf1793 smp67 tf100 neg89 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-06 21:50:25,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2021-12-06 21:50:25,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_875d686e-85f5-4e23-8b83-c59b3acf140d/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE