./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/string-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/string-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer --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 32bit --witnessprinter.graph.data.programhash b312eb4f8caa7cb61d3a06c0594e4f86d10948be 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:53:27,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:53:27,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:53:27,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:53:27,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:53:27,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:53:27,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:53:27,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:53:27,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:53:27,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:53:27,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:53:27,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:53:27,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:53:27,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:53:27,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:53:27,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:53:27,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:53:27,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:53:27,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:53:27,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:53:27,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:53:27,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:53:27,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:53:27,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:53:27,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:53:27,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:53:27,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:53:27,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:53:27,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:53:27,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:53:27,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:53:27,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:53:27,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:53:27,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:53:27,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:53:27,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:53:27,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:53:27,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:53:27,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:53:27,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:53:27,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:53:27,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:53:27,850 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:53:27,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:53:27,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:53:27,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:53:27,854 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:53:27,855 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:53:27,855 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:53:27,855 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:53:27,855 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:53:27,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:53:27,857 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:53:27,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:53:27,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:53:27,858 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:53:27,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:53:27,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:53:27,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:53:27,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:53:27,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:53:27,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:53:27,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:53:27,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:53:27,861 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:53:27,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:53:27,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:53:27,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:53:27,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:53:27,862 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:53:27,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:53:27,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:53:27,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:53:27,866 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:53:27,868 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:53:27,868 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-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b312eb4f8caa7cb61d3a06c0594e4f86d10948be [2020-12-01 15:53:28,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:53:28,299 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:53:28,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:53:28,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:53:28,305 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:53:28,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/../../sv-benchmarks/c/loops/string-1.i [2020-12-01 15:53:28,428 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/data/54d4ad1f8/16493962da8f4d1486ca3211d376fb23/FLAGa9e427e47 [2020-12-01 15:53:29,078 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:53:29,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/sv-benchmarks/c/loops/string-1.i [2020-12-01 15:53:29,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/data/54d4ad1f8/16493962da8f4d1486ca3211d376fb23/FLAGa9e427e47 [2020-12-01 15:53:29,443 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/data/54d4ad1f8/16493962da8f4d1486ca3211d376fb23 [2020-12-01 15:53:29,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:53:29,449 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:53:29,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:29,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:53:29,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:53:29,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@568bc62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29, skipping insertion in model container [2020-12-01 15:53:29,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:53:29,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:53:29,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:29,762 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:53:29,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:53:29,847 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:53:29,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29 WrapperNode [2020-12-01 15:53:29,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:53:29,854 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:29,854 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:53:29,855 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:53:29,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:53:29,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:53:29,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:53:29,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:53:29,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... [2020-12-01 15:53:29,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:53:29,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:53:29,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:53:29,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:53:29,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:53:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:53:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:53:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:53:30,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:53:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:53:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:53:30,415 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:53:30,416 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 15:53:30,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:30 BoogieIcfgContainer [2020-12-01 15:53:30,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:53:30,419 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:53:30,420 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:53:30,424 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:53:30,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:30,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:53:29" (1/3) ... [2020-12-01 15:53:30,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2809e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:53:30, skipping insertion in model container [2020-12-01 15:53:30,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:30,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:53:29" (2/3) ... [2020-12-01 15:53:30,446 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2809e5b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:53:30, skipping insertion in model container [2020-12-01 15:53:30,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:53:30,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:30" (3/3) ... [2020-12-01 15:53:30,448 INFO L389 chiAutomizerObserver]: Analyzing ICFG string-1.i [2020-12-01 15:53:30,517 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:53:30,517 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:53:30,517 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:53:30,517 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:53:30,518 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:53:30,518 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:53:30,518 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:53:30,518 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:53:30,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-12-01 15:53:30,559 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-12-01 15:53:30,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:30,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:30,567 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:53:30,567 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:30,567 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:53:30,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states. [2020-12-01 15:53:30,571 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2020-12-01 15:53:30,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:30,572 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:30,572 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-12-01 15:53:30,572 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:30,581 INFO L794 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8#L33-3true [2020-12-01 15:53:30,582 INFO L796 eck$LassoCheckResult]: Loop: 8#L33-3true assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 19#L33-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L33-3true [2020-12-01 15:53:30,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:30,589 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-12-01 15:53:30,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:30,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823233435] [2020-12-01 15:53:30,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,748 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:30,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:30,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:30,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-12-01 15:53:30,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:30,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160990786] [2020-12-01 15:53:30,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,879 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:30,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:30,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:30,891 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-12-01 15:53:30,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:30,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264594594] [2020-12-01 15:53:30,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,950 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:30,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:31,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:31,453 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2020-12-01 15:53:31,681 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-01 15:53:31,700 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:53:31,701 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:53:31,702 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:53:31,702 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:53:31,702 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:53:31,702 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:31,703 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:53:31,703 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:53:31,703 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration1_Lasso [2020-12-01 15:53:31,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:53:31,704 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:53:31,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:31,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,064 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-01 15:53:32,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:32,515 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:53:32,521 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:32,536 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:32,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:32,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:32,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:32,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:32,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:32,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:32,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:32,671 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:32,731 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,733 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,740 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:32,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,763 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:32,813 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:32,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:32,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:32,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:32,903 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:32,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:32,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:32,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:32,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:32,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:32,952 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:32,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:32,953 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:32,961 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,013 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,015 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,015 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,089 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,091 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,091 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,092 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,092 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,177 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:33,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,341 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:33,440 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:33,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:33,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,612 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:33,643 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,680 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:33,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,729 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:33,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,785 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,787 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,787 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:33,812 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:33,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:33,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:33,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,907 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,907 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,907 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,907 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:33,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:33,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:33,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:33,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:33,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:33,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:33,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:33,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:34,000 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:53:34,033 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-12-01 15:53:34,033 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:34,065 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:34,091 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:53:34,091 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:53:34,092 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1, ULTIMATE.start_main_~i~0) = 9*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_1 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:53:34,181 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-12-01 15:53:34,192 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:53:34,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:34,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:53:34,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:34,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:34,281 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:53:34,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:34,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:34,360 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:53:34,362 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states. Second operand 3 states. [2020-12-01 15:53:34,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states.. Second operand 3 states. Result 54 states and 86 transitions. Complement of second has 8 states. [2020-12-01 15:53:34,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 15:53:34,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:53:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-12-01 15:53:34,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 2 letters. [2020-12-01 15:53:34,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:34,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 4 letters. Loop has 2 letters. [2020-12-01 15:53:34,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:34,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 43 transitions. Stem has 2 letters. Loop has 4 letters. [2020-12-01 15:53:34,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:34,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 86 transitions. [2020-12-01 15:53:34,458 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 19 states and 28 transitions. [2020-12-01 15:53:34,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2020-12-01 15:53:34,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-12-01 15:53:34,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 28 transitions. [2020-12-01 15:53:34,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:34,466 INFO L692 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:53:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 28 transitions. [2020-12-01 15:53:34,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-01 15:53:34,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-01 15:53:34,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2020-12-01 15:53:34,493 INFO L715 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:53:34,494 INFO L595 BuchiCegarLoop]: Abstraction has 19 states and 28 transitions. [2020-12-01 15:53:34,494 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:53:34,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 28 transitions. [2020-12-01 15:53:34,495 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:34,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:34,495 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-12-01 15:53:34,496 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:34,496 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 175#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 172#L33-3 assume !(main_~i~0 < 5); 170#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 171#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 182#L37-3 [2020-12-01 15:53:34,496 INFO L796 eck$LassoCheckResult]: Loop: 182#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 183#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 182#L37-3 [2020-12-01 15:53:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,497 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2020-12-01 15:53:34,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:34,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309313771] [2020-12-01 15:53:34,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:34,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309313771] [2020-12-01 15:53:34,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:53:34,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-01 15:53:34,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059660093] [2020-12-01 15:53:34,553 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:53:34,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2020-12-01 15:53:34,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:34,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436699283] [2020-12-01 15:53:34,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:34,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:34,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:34,568 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:34,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:34,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-01 15:53:34,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-01 15:53:34,606 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. cyclomatic complexity: 14 Second operand 3 states. [2020-12-01 15:53:34,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:34,643 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-12-01 15:53:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-01 15:53:34,644 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2020-12-01 15:53:34,646 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 30 transitions. [2020-12-01 15:53:34,648 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2020-12-01 15:53:34,649 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-12-01 15:53:34,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2020-12-01 15:53:34,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:34,649 INFO L692 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2020-12-01 15:53:34,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2020-12-01 15:53:34,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2020-12-01 15:53:34,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-01 15:53:34,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-12-01 15:53:34,653 INFO L715 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-12-01 15:53:34,653 INFO L595 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-12-01 15:53:34,653 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-12-01 15:53:34,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2020-12-01 15:53:34,654 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,654 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:34,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:34,655 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:34,655 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:34,655 INFO L794 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 224#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 221#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 222#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 223#L33-3 assume !(main_~i~0 < 5); 219#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 220#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 231#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 232#L37-2 [2020-12-01 15:53:34,655 INFO L796 eck$LassoCheckResult]: Loop: 232#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 233#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 232#L37-2 [2020-12-01 15:53:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash 265181045, now seen corresponding path program 1 times [2020-12-01 15:53:34,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:34,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368964896] [2020-12-01 15:53:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:34,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:34,704 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368964896] [2020-12-01 15:53:34,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800735774] [2020-12-01 15:53:34,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:34,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-01 15:53:34,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:34,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:34,843 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-12-01 15:53:34,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001168891] [2020-12-01 15:53:34,844 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:53:34,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 2 times [2020-12-01 15:53:34,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:34,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128625209] [2020-12-01 15:53:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:34,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:34,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:34,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:34,860 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:34,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:34,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:53:34,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:53:34,899 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 10 Second operand 5 states. [2020-12-01 15:53:34,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:34,968 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-12-01 15:53:34,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:53:34,969 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 37 transitions. [2020-12-01 15:53:34,971 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 30 states and 37 transitions. [2020-12-01 15:53:34,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2020-12-01 15:53:34,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2020-12-01 15:53:34,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 37 transitions. [2020-12-01 15:53:34,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:34,974 INFO L692 BuchiCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-12-01 15:53:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 37 transitions. [2020-12-01 15:53:34,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 24. [2020-12-01 15:53:34,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-12-01 15:53:34,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2020-12-01 15:53:34,978 INFO L715 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-12-01 15:53:34,978 INFO L595 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2020-12-01 15:53:34,978 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-12-01 15:53:34,978 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2020-12-01 15:53:34,979 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:34,979 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:34,979 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:34,980 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:34,980 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:34,981 INFO L794 eck$LassoCheckResult]: Stem: 308#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 304#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 300#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 301#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 302#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 303#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 315#L33-3 assume !(main_~i~0 < 5); 298#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 299#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 313#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 314#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 311#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 312#L37-2 [2020-12-01 15:53:34,981 INFO L796 eck$LassoCheckResult]: Loop: 312#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 316#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 312#L37-2 [2020-12-01 15:53:34,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:34,982 INFO L82 PathProgramCache]: Analyzing trace with hash 780717205, now seen corresponding path program 1 times [2020-12-01 15:53:34,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:34,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550442104] [2020-12-01 15:53:34,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:53:35,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550442104] [2020-12-01 15:53:35,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1310057990] [2020-12-01 15:53:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:35,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:53:35,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:35,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:53:35,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:35,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-12-01 15:53:35,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659120007] [2020-12-01 15:53:35,187 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:53:35,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:35,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 3 times [2020-12-01 15:53:35,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:35,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297222710] [2020-12-01 15:53:35,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,205 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,211 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,215 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:35,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:35,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:53:35,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:53:35,249 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 10 Second operand 6 states. [2020-12-01 15:53:35,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:35,325 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-12-01 15:53:35,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:53:35,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 44 transitions. [2020-12-01 15:53:35,333 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:35,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 36 states and 44 transitions. [2020-12-01 15:53:35,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2020-12-01 15:53:35,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-12-01 15:53:35,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 44 transitions. [2020-12-01 15:53:35,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:35,341 INFO L692 BuchiCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-12-01 15:53:35,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 44 transitions. [2020-12-01 15:53:35,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2020-12-01 15:53:35,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-12-01 15:53:35,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2020-12-01 15:53:35,348 INFO L715 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-01 15:53:35,348 INFO L595 BuchiCegarLoop]: Abstraction has 28 states and 33 transitions. [2020-12-01 15:53:35,348 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-12-01 15:53:35,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 33 transitions. [2020-12-01 15:53:35,350 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:35,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:35,350 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:35,352 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 3, 2, 1, 1, 1, 1, 1] [2020-12-01 15:53:35,353 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:35,353 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 406#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 402#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 403#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 421#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 407#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 404#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 405#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 418#L33-3 assume !(main_~i~0 < 5); 400#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 401#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 416#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 422#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 420#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 417#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 414#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L37-2 [2020-12-01 15:53:35,353 INFO L796 eck$LassoCheckResult]: Loop: 415#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 419#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 415#L37-2 [2020-12-01 15:53:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:35,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2111137973, now seen corresponding path program 2 times [2020-12-01 15:53:35,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:35,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783937719] [2020-12-01 15:53:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:53:35,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783937719] [2020-12-01 15:53:35,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324015739] [2020-12-01 15:53:35,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:35,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:53:35,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:35,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:53:35,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 15:53:35,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:35,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2020-12-01 15:53:35,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550844001] [2020-12-01 15:53:35,552 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:53:35,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:35,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 4 times [2020-12-01 15:53:35,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:35,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538482429] [2020-12-01 15:53:35,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,557 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,561 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,563 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:35,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:35,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:53:35,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:53:35,593 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-12-01 15:53:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:35,675 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2020-12-01 15:53:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:53:35,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2020-12-01 15:53:35,679 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:35,681 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 42 states and 51 transitions. [2020-12-01 15:53:35,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2020-12-01 15:53:35,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2020-12-01 15:53:35,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 51 transitions. [2020-12-01 15:53:35,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:35,698 INFO L692 BuchiCegarLoop]: Abstraction has 42 states and 51 transitions. [2020-12-01 15:53:35,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 51 transitions. [2020-12-01 15:53:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2020-12-01 15:53:35,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-01 15:53:35,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2020-12-01 15:53:35,704 INFO L715 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-12-01 15:53:35,705 INFO L595 BuchiCegarLoop]: Abstraction has 32 states and 37 transitions. [2020-12-01 15:53:35,705 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-12-01 15:53:35,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 37 transitions. [2020-12-01 15:53:35,706 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:35,706 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:35,706 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:35,707 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 1, 1, 1, 1, 1] [2020-12-01 15:53:35,708 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:35,708 INFO L794 eck$LassoCheckResult]: Stem: 535#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 531#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 527#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 528#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 529#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 530#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 551#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 550#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 549#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 542#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 541#L33-3 assume !(main_~i~0 < 5); 525#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 526#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 538#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 539#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 540#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 548#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 547#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 546#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 545#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L37-2 [2020-12-01 15:53:35,708 INFO L796 eck$LassoCheckResult]: Loop: 544#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 543#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 544#L37-2 [2020-12-01 15:53:35,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash 213314517, now seen corresponding path program 3 times [2020-12-01 15:53:35,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:35,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954036003] [2020-12-01 15:53:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 15:53:35,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954036003] [2020-12-01 15:53:35,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548322017] [2020-12-01 15:53:35,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:35,895 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2020-12-01 15:53:35,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:35,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:53:35,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:35,975 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 15:53:35,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:53:35,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2020-12-01 15:53:35,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264545179] [2020-12-01 15:53:35,978 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:53:35,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:35,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 5 times [2020-12-01 15:53:35,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:35,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059637815] [2020-12-01 15:53:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:35,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:35,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:35,987 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:36,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:36,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:53:36,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:53:36,028 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-12-01 15:53:36,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:36,137 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2020-12-01 15:53:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:53:36,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2020-12-01 15:53:36,141 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:36,143 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2020-12-01 15:53:36,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:53:36,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:53:36,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2020-12-01 15:53:36,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:36,145 INFO L692 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2020-12-01 15:53:36,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2020-12-01 15:53:36,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 36. [2020-12-01 15:53:36,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:53:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2020-12-01 15:53:36,158 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-12-01 15:53:36,158 INFO L595 BuchiCegarLoop]: Abstraction has 36 states and 41 transitions. [2020-12-01 15:53:36,158 INFO L427 BuchiCegarLoop]: ======== Iteration 7============ [2020-12-01 15:53:36,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 41 transitions. [2020-12-01 15:53:36,159 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:36,159 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:36,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:36,161 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 1, 1, 1, 1, 1] [2020-12-01 15:53:36,161 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:36,162 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 677#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 673#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 674#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 675#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 676#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 698#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 696#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 694#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 692#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 691#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 688#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 687#L33-3 assume !(main_~i~0 < 5); 671#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 672#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 684#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 685#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 686#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 701#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 700#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 699#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 697#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 695#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 693#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L37-2 [2020-12-01 15:53:36,162 INFO L796 eck$LassoCheckResult]: Loop: 690#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 689#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 690#L37-2 [2020-12-01 15:53:36,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1212159477, now seen corresponding path program 4 times [2020-12-01 15:53:36,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508438771] [2020-12-01 15:53:36,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,266 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,285 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:36,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1951, now seen corresponding path program 6 times [2020-12-01 15:53:36,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907289899] [2020-12-01 15:53:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,301 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,302 INFO L82 PathProgramCache]: Analyzing trace with hash 949121171, now seen corresponding path program 5 times [2020-12-01 15:53:36,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122023711] [2020-12-01 15:53:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:36,420 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 15:53:36,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122023711] [2020-12-01 15:53:36,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346463244] [2020-12-01 15:53:36,420 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:53:36,550 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2020-12-01 15:53:36,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:53:36,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:53:36,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-12-01 15:53:36,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-01 15:53:36,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2020-12-01 15:53:36,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348149151] [2020-12-01 15:53:36,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:36,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:53:36,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:53:36,644 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. cyclomatic complexity: 10 Second operand 8 states. [2020-12-01 15:53:36,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:36,802 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-12-01 15:53:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:53:36,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 57 transitions. [2020-12-01 15:53:36,806 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2020-12-01 15:53:36,809 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 48 states and 57 transitions. [2020-12-01 15:53:36,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:53:36,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-12-01 15:53:36,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 57 transitions. [2020-12-01 15:53:36,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:53:36,811 INFO L692 BuchiCegarLoop]: Abstraction has 48 states and 57 transitions. [2020-12-01 15:53:36,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 57 transitions. [2020-12-01 15:53:36,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 36. [2020-12-01 15:53:36,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:53:36,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2020-12-01 15:53:36,814 INFO L715 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-01 15:53:36,815 INFO L595 BuchiCegarLoop]: Abstraction has 36 states and 39 transitions. [2020-12-01 15:53:36,815 INFO L427 BuchiCegarLoop]: ======== Iteration 8============ [2020-12-01 15:53:36,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 39 transitions. [2020-12-01 15:53:36,815 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2020-12-01 15:53:36,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:36,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:36,817 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:36,817 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:36,817 INFO L794 eck$LassoCheckResult]: Stem: 853#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 848#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 846#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 847#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 849#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 872#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 870#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 868#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 866#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 864#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 862#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 860#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 859#L33-3 assume !(main_~i~0 < 5); 844#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 845#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 856#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 857#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 858#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 874#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 873#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 871#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 869#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 867#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 865#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 863#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 861#L37-3 assume !(main_~i~0 < 5); 855#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 841#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 842#L42-3 [2020-12-01 15:53:36,818 INFO L796 eck$LassoCheckResult]: Loop: 842#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 843#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 842#L42-3 [2020-12-01 15:53:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1572377782, now seen corresponding path program 1 times [2020-12-01 15:53:36,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045598453] [2020-12-01 15:53:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,906 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:36,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,907 INFO L82 PathProgramCache]: Analyzing trace with hash 2406, now seen corresponding path program 1 times [2020-12-01 15:53:36,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542758370] [2020-12-01 15:53:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,913 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,926 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:36,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:36,927 INFO L82 PathProgramCache]: Analyzing trace with hash -773438245, now seen corresponding path program 1 times [2020-12-01 15:53:36,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:36,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900118280] [2020-12-01 15:53:36,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,946 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:36,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:36,993 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:42,842 WARN L197 SmtUtils]: Spent 5.81 s on a formula simplification. DAG size of input: 248 DAG size of output: 189 [2020-12-01 15:53:43,972 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 121 [2020-12-01 15:53:43,975 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:53:43,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:53:43,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:53:43,976 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:53:43,976 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:53:43,976 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:43,976 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:53:43,976 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:53:43,976 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration8_Lasso [2020-12-01 15:53:43,976 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:53:43,976 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:53:43,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:43,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,504 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-01 15:53:44,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:44,864 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:53:44,864 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:44,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:44,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:44,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:44,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:44,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:44,873 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:44,873 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:44,873 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:44,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:44,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:44,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:44,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:44,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:44,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:44,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:44,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:44,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:44,910 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:44,932 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:44,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:44,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:44,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:44,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:44,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:44,934 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:44,934 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:44,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:44,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:44,958 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:44,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:44,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:44,958 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:44,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:44,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:44,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:44,985 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:44,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:44,987 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:44,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:44,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:44,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:44,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:44,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:44,989 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,016 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,018 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,040 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,041 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,041 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,041 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,042 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,042 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,042 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,043 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,072 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:45,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,155 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,179 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,180 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,208 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,210 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,317 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,319 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,319 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,320 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,320 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,321 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,351 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,351 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,362 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,386 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,388 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,388 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,389 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,413 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,416 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,432 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,461 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,485 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,486 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,487 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,488 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,522 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,552 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,552 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:45,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:45,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:45,586 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,612 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,612 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,642 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,645 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:45,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:45,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:45,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:45,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:45,675 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:45,675 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:45,699 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:53:45,730 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-12-01 15:53:45,730 INFO L444 ModelExtractionUtils]: 6 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:45,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:45,760 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:53:45,760 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:53:45,760 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_A~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2, ULTIMATE.start_main_~nc_A~0) = -1*ULTIMATE.start_main_~#string_A~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_2 - 1*ULTIMATE.start_main_~nc_A~0 Supporting invariants [] [2020-12-01 15:53:45,826 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-12-01 15:53:45,828 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:53:45,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:45,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:45,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:53:45,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:45,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:53:45,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:45,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:53:45,980 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6 Second operand 3 states. [2020-12-01 15:53:46,008 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 39 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 44 states and 51 transitions. Complement of second has 4 states. [2020-12-01 15:53:46,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:53:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:53:46,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-12-01 15:53:46,009 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 2 letters. [2020-12-01 15:53:46,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:46,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 30 letters. Loop has 2 letters. [2020-12-01 15:53:46,012 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:46,012 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 28 letters. Loop has 4 letters. [2020-12-01 15:53:46,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:46,013 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 51 transitions. [2020-12-01 15:53:46,014 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:53:46,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 38 states and 42 transitions. [2020-12-01 15:53:46,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-12-01 15:53:46,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:53:46,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 42 transitions. [2020-12-01 15:53:46,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:53:46,024 INFO L692 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:53:46,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 42 transitions. [2020-12-01 15:53:46,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-01 15:53:46,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-01 15:53:46,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2020-12-01 15:53:46,033 INFO L715 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:53:46,033 INFO L595 BuchiCegarLoop]: Abstraction has 38 states and 42 transitions. [2020-12-01 15:53:46,033 INFO L427 BuchiCegarLoop]: ======== Iteration 9============ [2020-12-01 15:53:46,033 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 42 transitions. [2020-12-01 15:53:46,034 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:53:46,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:46,034 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:46,036 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:46,036 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:46,036 INFO L794 eck$LassoCheckResult]: Stem: 1097#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1092#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1090#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1091#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1093#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1118#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1117#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1116#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1115#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1114#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1113#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1111#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1109#L33-3 assume !(main_~i~0 < 5); 1088#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1089#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1102#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1103#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1100#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1101#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1112#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1110#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1108#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1107#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1106#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1105#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1104#L37-3 assume !(main_~i~0 < 5); 1099#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1083#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1084#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1086#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1081#L42-4 main_~nc_B~0 := 0; 1082#L46-3 [2020-12-01 15:53:46,037 INFO L796 eck$LassoCheckResult]: Loop: 1082#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1098#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1082#L46-3 [2020-12-01 15:53:46,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1793218173, now seen corresponding path program 1 times [2020-12-01 15:53:46,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:46,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940798269] [2020-12-01 15:53:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,110 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:46,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:46,114 INFO L82 PathProgramCache]: Analyzing trace with hash 2854, now seen corresponding path program 1 times [2020-12-01 15:53:46,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:46,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045269094] [2020-12-01 15:53:46,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:46,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,122 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:46,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1000780450, now seen corresponding path program 1 times [2020-12-01 15:53:46,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:46,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743938486] [2020-12-01 15:53:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:46,178 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:46,195 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:53,742 WARN L197 SmtUtils]: Spent 7.52 s on a formula simplification. DAG size of input: 259 DAG size of output: 197 [2020-12-01 15:53:54,419 WARN L197 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2020-12-01 15:53:54,422 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:53:54,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:53:54,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:53:54,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:53:54,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:53:54,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:54,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:53:54,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:53:54,423 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration9_Lasso [2020-12-01 15:53:54,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:53:54,423 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:53:54,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:54,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,111 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-12-01 15:53:55,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:53:55,600 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:53:55,600 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,608 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:55,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:55,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,638 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,639 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:55,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,710 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,711 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,723 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:55,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,765 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,767 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,782 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,807 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,809 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,809 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,809 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,809 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,839 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,840 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,841 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,864 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:55,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:55,870 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,893 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,920 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,925 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:55,925 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:55,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,966 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,967 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,968 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:55,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:55,994 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:55,994 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:55,994 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:55,994 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:55,994 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:55,994 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:55,994 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:55,996 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:56,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:56,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:56,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:56,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:56,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:56,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:56,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:56,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:56,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:56,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:53:56,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:56,052 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:53:56,052 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:56,052 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:56,052 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:56,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:53:56,052 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:53:56,054 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:53:56,077 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:56,079 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:53:56,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:53:56,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:53:56,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:53:56,086 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:53:56,087 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:53:56,103 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:53:56,144 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-12-01 15:53:56,144 INFO L444 ModelExtractionUtils]: 1 out of 25 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:53:56,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:53:56,152 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:53:56,153 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:53:56,153 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_B~0.offset, ULTIMATE.start_main_~nc_B~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3) = -1*ULTIMATE.start_main_~#string_B~0.offset - 1*ULTIMATE.start_main_~nc_B~0 + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_3 Supporting invariants [] [2020-12-01 15:53:56,289 INFO L297 tatePredicateManager]: 26 out of 26 supporting invariants were superfluous and have been removed [2020-12-01 15:53:56,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:53:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:56,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:53:56,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:56,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:56,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-01 15:53:56,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:53:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:53:56,429 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 15:53:56,430 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7 Second operand 3 states. [2020-12-01 15:53:56,456 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 42 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 43 states and 50 transitions. Complement of second has 4 states. [2020-12-01 15:53:56,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:53:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 15:53:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 23 transitions. [2020-12-01 15:53:56,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 2 letters. [2020-12-01 15:53:56,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:56,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 33 letters. Loop has 2 letters. [2020-12-01 15:53:56,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:56,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 23 transitions. Stem has 31 letters. Loop has 4 letters. [2020-12-01 15:53:56,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:53:56,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 50 transitions. [2020-12-01 15:53:56,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 40 states and 45 transitions. [2020-12-01 15:53:56,463 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2020-12-01 15:53:56,463 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:53:56,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 45 transitions. [2020-12-01 15:53:56,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:53:56,464 INFO L692 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:53:56,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 45 transitions. [2020-12-01 15:53:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2020-12-01 15:53:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:53:56,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 45 transitions. [2020-12-01 15:53:56,467 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:53:56,468 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 45 transitions. [2020-12-01 15:53:56,468 INFO L427 BuchiCegarLoop]: ======== Iteration 10============ [2020-12-01 15:53:56,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 45 transitions. [2020-12-01 15:53:56,468 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:56,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:56,470 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:56,470 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:56,471 INFO L794 eck$LassoCheckResult]: Stem: 1401#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1397#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1394#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1395#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1396#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1424#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1423#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1422#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1421#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1419#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1417#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1415#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1413#L33-3 assume !(main_~i~0 < 5); 1392#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1393#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1408#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1409#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1406#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1407#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1420#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1418#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1416#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1414#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1412#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1411#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1410#L37-3 assume !(main_~i~0 < 5); 1405#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1387#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1388#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1390#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1385#L42-4 main_~nc_B~0 := 0; 1386#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1403#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1398#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1399#L55-2 [2020-12-01 15:53:56,471 INFO L796 eck$LassoCheckResult]: Loop: 1399#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1400#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1399#L55-2 [2020-12-01 15:53:56,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,472 INFO L82 PathProgramCache]: Analyzing trace with hash 959422888, now seen corresponding path program 1 times [2020-12-01 15:53:56,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690040999] [2020-12-01 15:53:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,507 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,514 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:56,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,515 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 1 times [2020-12-01 15:53:56,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722975930] [2020-12-01 15:53:56,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,523 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:56,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1412570677, now seen corresponding path program 1 times [2020-12-01 15:53:56,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856623279] [2020-12-01 15:53:56,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:53:56,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856623279] [2020-12-01 15:53:56,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:53:56,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:53:56,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258078543] [2020-12-01 15:53:56,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:56,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:53:56,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:53:56,639 INFO L87 Difference]: Start difference. First operand 40 states and 45 transitions. cyclomatic complexity: 8 Second operand 4 states. [2020-12-01 15:53:56,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:56,657 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2020-12-01 15:53:56,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:53:56,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 48 transitions. [2020-12-01 15:53:56,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 41 states and 45 transitions. [2020-12-01 15:53:56,659 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:53:56,660 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:53:56,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 45 transitions. [2020-12-01 15:53:56,660 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:53:56,660 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 45 transitions. [2020-12-01 15:53:56,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 45 transitions. [2020-12-01 15:53:56,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-12-01 15:53:56,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:53:56,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2020-12-01 15:53:56,663 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-12-01 15:53:56,663 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 44 transitions. [2020-12-01 15:53:56,663 INFO L427 BuchiCegarLoop]: ======== Iteration 11============ [2020-12-01 15:53:56,664 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 44 transitions. [2020-12-01 15:53:56,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:56,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:56,665 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:56,665 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:56,666 INFO L794 eck$LassoCheckResult]: Stem: 1494#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1489#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1487#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1488#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1490#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1517#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1516#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1515#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1514#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1513#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1511#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1509#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1507#L33-3 assume !(main_~i~0 < 5); 1485#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1486#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1499#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1500#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1501#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1512#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1510#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1508#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1506#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1505#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1504#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1503#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1502#L37-3 assume !(main_~i~0 < 5); 1498#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1480#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1481#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1483#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1478#L42-4 main_~nc_B~0 := 0; 1479#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1495#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1496#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1497#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1491#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1492#L55-2 [2020-12-01 15:53:56,666 INFO L796 eck$LassoCheckResult]: Loop: 1492#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1493#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1492#L55-2 [2020-12-01 15:53:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1412524189, now seen corresponding path program 1 times [2020-12-01 15:53:56,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592187225] [2020-12-01 15:53:56,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,734 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:56,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,734 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 2 times [2020-12-01 15:53:56,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926781814] [2020-12-01 15:53:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,750 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,751 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:56,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,753 INFO L82 PathProgramCache]: Analyzing trace with hash -226077498, now seen corresponding path program 1 times [2020-12-01 15:53:56,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365227276] [2020-12-01 15:53:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:53:56,829 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:53:56,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365227276] [2020-12-01 15:53:56,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:53:56,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 15:53:56,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125201724] [2020-12-01 15:53:56,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:53:56,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-01 15:53:56,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-01 15:53:56,904 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. cyclomatic complexity: 7 Second operand 4 states. [2020-12-01 15:53:56,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:53:56,925 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2020-12-01 15:53:56,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:53:56,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 53 transitions. [2020-12-01 15:53:56,927 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,927 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 41 states and 44 transitions. [2020-12-01 15:53:56,928 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:53:56,928 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:53:56,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 44 transitions. [2020-12-01 15:53:56,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:53:56,928 INFO L692 BuchiCegarLoop]: Abstraction has 41 states and 44 transitions. [2020-12-01 15:53:56,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 44 transitions. [2020-12-01 15:53:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2020-12-01 15:53:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-12-01 15:53:56,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2020-12-01 15:53:56,932 INFO L715 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-01 15:53:56,932 INFO L595 BuchiCegarLoop]: Abstraction has 40 states and 43 transitions. [2020-12-01 15:53:56,932 INFO L427 BuchiCegarLoop]: ======== Iteration 12============ [2020-12-01 15:53:56,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 43 transitions. [2020-12-01 15:53:56,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:53:56,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:53:56,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:53:56,934 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:53:56,934 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:53:56,934 INFO L794 eck$LassoCheckResult]: Stem: 1592#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 1588#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 1585#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1586#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1587#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1615#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1614#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1613#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1612#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1611#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1609#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 1607#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 1605#L33-3 assume !(main_~i~0 < 5); 1583#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 1584#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 1597#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1598#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1599#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1610#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1608#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1606#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1604#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1603#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1602#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 1601#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 1600#L37-3 assume !(main_~i~0 < 5); 1596#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1578#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1579#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1580#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1581#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1582#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1576#L42-4 main_~nc_B~0 := 0; 1577#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1593#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 1594#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 1595#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 1589#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 1590#L55-2 [2020-12-01 15:53:56,935 INFO L796 eck$LassoCheckResult]: Loop: 1590#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 1591#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 1590#L55-2 [2020-12-01 15:53:56,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,935 INFO L82 PathProgramCache]: Analyzing trace with hash 489706120, now seen corresponding path program 1 times [2020-12-01 15:53:56,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019277246] [2020-12-01 15:53:56,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,986 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:56,992 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:56,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:56,993 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 3 times [2020-12-01 15:53:56,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:56,994 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059305691] [2020-12-01 15:53:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:56,997 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:57,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:57,002 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:53:57,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:53:57,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818645, now seen corresponding path program 1 times [2020-12-01 15:53:57,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:53:57,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863137310] [2020-12-01 15:53:57,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:53:57,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:57,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:53:57,045 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:53:57,052 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:06,535 WARN L197 SmtUtils]: Spent 9.36 s on a formula simplification. DAG size of input: 296 DAG size of output: 225 [2020-12-01 15:54:07,601 WARN L197 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-12-01 15:54:07,604 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:54:07,605 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:54:07,605 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:54:07,605 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:54:07,605 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:54:07,605 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:07,605 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:54:07,605 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:54:07,605 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration12_Lasso [2020-12-01 15:54:07,605 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:54:07,605 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:54:07,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:07,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:08,866 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2020-12-01 15:54:09,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:09,645 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:54:09,646 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,667 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,667 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:09,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,668 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:09,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:09,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:09,737 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:09,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:09,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,752 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:09,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,794 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,794 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:09,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,794 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:09,796 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,807 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:09,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:09,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,851 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:09,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:09,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,876 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:09,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:09,883 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,906 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,909 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:09,909 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:09,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,945 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:09,945 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:09,948 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:09,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:09,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:09,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:09,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:09,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:09,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:09,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:09,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:09,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,053 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,053 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,115 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:10,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,116 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:10,116 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,125 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,153 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,153 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:10,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:10,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:10,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,223 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,243 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,292 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:10,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,367 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:10,367 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:10,419 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,425 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,435 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,490 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,491 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,491 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,491 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,495 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:10,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,520 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:10,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:10,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,546 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:10,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:10,548 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:10,548 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:10,548 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:10,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:10,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:10,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:54:10,648 INFO L443 ModelExtractionUtils]: Simplification made 28 calls to the SMT solver. [2020-12-01 15:54:10,649 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 24 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:10,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:54:10,657 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-12-01 15:54:10,657 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:54:10,657 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~nc_B~0 - 1*ULTIMATE.start_main_~nc_A~0 >= 0] [2020-12-01 15:54:10,894 INFO L297 tatePredicateManager]: 36 out of 39 supporting invariants were superfluous and have been removed [2020-12-01 15:54:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:10,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:54:10,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:11,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:11,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:54:11,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:11,286 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:54:11,286 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6 Second operand 9 states. [2020-12-01 15:54:11,489 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 43 transitions. cyclomatic complexity: 6. Second operand 9 states. Result 52 states and 59 transitions. Complement of second has 12 states. [2020-12-01 15:54:11,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:54:11,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:54:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 30 transitions. [2020-12-01 15:54:11,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 38 letters. Loop has 2 letters. [2020-12-01 15:54:11,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:11,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 40 letters. Loop has 2 letters. [2020-12-01 15:54:11,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:11,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 30 transitions. Stem has 38 letters. Loop has 4 letters. [2020-12-01 15:54:11,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:11,491 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 59 transitions. [2020-12-01 15:54:11,492 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:11,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 59 transitions. [2020-12-01 15:54:11,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-12-01 15:54:11,494 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-12-01 15:54:11,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 59 transitions. [2020-12-01 15:54:11,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:11,494 INFO L692 BuchiCegarLoop]: Abstraction has 52 states and 59 transitions. [2020-12-01 15:54:11,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 59 transitions. [2020-12-01 15:54:11,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-12-01 15:54:11,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-12-01 15:54:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2020-12-01 15:54:11,498 INFO L715 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2020-12-01 15:54:11,498 INFO L595 BuchiCegarLoop]: Abstraction has 48 states and 54 transitions. [2020-12-01 15:54:11,498 INFO L427 BuchiCegarLoop]: ======== Iteration 13============ [2020-12-01 15:54:11,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 54 transitions. [2020-12-01 15:54:11,499 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:11,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:11,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:11,500 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:11,500 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:11,501 INFO L794 eck$LassoCheckResult]: Stem: 2012#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2005#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2002#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2003#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2004#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2040#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2039#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2038#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2037#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2036#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2034#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2026#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2023#L33-3 assume !(main_~i~0 < 5); 2000#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2001#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2018#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2019#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2020#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2035#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2033#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2032#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2031#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2029#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2027#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2024#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2021#L37-3 assume !(main_~i~0 < 5); 2017#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 1995#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 1996#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1997#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 1998#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 1999#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 1993#L42-4 main_~nc_B~0 := 0; 1994#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2013#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2030#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2028#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2025#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2022#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2011#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2007#L55-2 [2020-12-01 15:54:11,501 INFO L796 eck$LassoCheckResult]: Loop: 2007#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2008#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2007#L55-2 [2020-12-01 15:54:11,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:11,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1838818643, now seen corresponding path program 1 times [2020-12-01 15:54:11,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:11,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118415276] [2020-12-01 15:54:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:11,523 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:11,544 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:11,551 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:11,552 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 4 times [2020-12-01 15:54:11,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:11,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081162374] [2020-12-01 15:54:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:11,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:11,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:11,558 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:11,560 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:11,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:11,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1873154672, now seen corresponding path program 1 times [2020-12-01 15:54:11,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:11,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672887662] [2020-12-01 15:54:11,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:11,626 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:54:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672887662] [2020-12-01 15:54:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248509376] [2020-12-01 15:54:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:11,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 15:54:11,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 15:54:11,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:54:11,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-12-01 15:54:11,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172513331] [2020-12-01 15:54:11,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:11,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:54:11,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:54:11,912 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. cyclomatic complexity: 10 Second operand 9 states. [2020-12-01 15:54:12,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:12,000 INFO L93 Difference]: Finished difference Result 69 states and 78 transitions. [2020-12-01 15:54:12,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:54:12,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 78 transitions. [2020-12-01 15:54:12,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:12,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 51 states and 57 transitions. [2020-12-01 15:54:12,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-12-01 15:54:12,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2020-12-01 15:54:12,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 57 transitions. [2020-12-01 15:54:12,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:12,007 INFO L692 BuchiCegarLoop]: Abstraction has 51 states and 57 transitions. [2020-12-01 15:54:12,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 57 transitions. [2020-12-01 15:54:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2020-12-01 15:54:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-12-01 15:54:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2020-12-01 15:54:12,010 INFO L715 BuchiCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-12-01 15:54:12,010 INFO L595 BuchiCegarLoop]: Abstraction has 50 states and 56 transitions. [2020-12-01 15:54:12,011 INFO L427 BuchiCegarLoop]: ======== Iteration 14============ [2020-12-01 15:54:12,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 56 transitions. [2020-12-01 15:54:12,011 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:12,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:12,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:12,013 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:12,013 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:12,013 INFO L794 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2261#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2258#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2259#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2262#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2297#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2295#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2293#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2291#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2289#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2286#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2284#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2281#L33-3 assume !(main_~i~0 < 5); 2256#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2257#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2275#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2276#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2278#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2296#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2294#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2292#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2290#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2287#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2285#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2282#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2279#L37-3 assume !(main_~i~0 < 5); 2274#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2251#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2252#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2253#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2254#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2255#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2298#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2260#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2249#L42-4 main_~nc_B~0 := 0; 2250#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2270#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2271#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2272#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2283#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2280#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2268#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2264#L55-2 [2020-12-01 15:54:12,013 INFO L796 eck$LassoCheckResult]: Loop: 2264#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2265#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2264#L55-2 [2020-12-01 15:54:12,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:12,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1199867054, now seen corresponding path program 2 times [2020-12-01 15:54:12,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:12,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981288414] [2020-12-01 15:54:12,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:12,074 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:54:12,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981288414] [2020-12-01 15:54:12,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767857784] [2020-12-01 15:54:12,075 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:12,174 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:54:12,175 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:54:12,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:54:12,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:12,288 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:54:12,288 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:54:12,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-12-01 15:54:12,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288086556] [2020-12-01 15:54:12,289 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:54:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:12,289 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 5 times [2020-12-01 15:54:12,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:12,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266569020] [2020-12-01 15:54:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,299 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:12,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:12,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-01 15:54:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:54:12,365 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. cyclomatic complexity: 10 Second operand 10 states. [2020-12-01 15:54:12,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:12,425 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2020-12-01 15:54:12,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 15:54:12,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 51 transitions. [2020-12-01 15:54:12,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:12,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 46 states and 49 transitions. [2020-12-01 15:54:12,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36 [2020-12-01 15:54:12,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2020-12-01 15:54:12,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 49 transitions. [2020-12-01 15:54:12,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:12,427 INFO L692 BuchiCegarLoop]: Abstraction has 46 states and 49 transitions. [2020-12-01 15:54:12,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 49 transitions. [2020-12-01 15:54:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-12-01 15:54:12,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-01 15:54:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2020-12-01 15:54:12,430 INFO L715 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-12-01 15:54:12,430 INFO L595 BuchiCegarLoop]: Abstraction has 44 states and 47 transitions. [2020-12-01 15:54:12,430 INFO L427 BuchiCegarLoop]: ======== Iteration 15============ [2020-12-01 15:54:12,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 47 transitions. [2020-12-01 15:54:12,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:12,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:12,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:12,432 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:12,432 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:12,432 INFO L794 eck$LassoCheckResult]: Stem: 2500#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2495#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2492#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2493#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2496#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2523#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2521#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2520#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2519#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2518#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2516#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2514#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2512#L33-3 assume !(main_~i~0 < 5); 2490#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2491#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2505#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2506#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2508#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2525#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2524#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2522#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2517#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2515#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2513#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2511#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2509#L37-3 assume !(main_~i~0 < 5); 2504#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2485#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2486#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2487#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2488#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2489#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2526#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2494#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2483#L42-4 main_~nc_B~0 := 0; 2484#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2501#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2502#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2503#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2510#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2507#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2497#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2498#L55-2 [2020-12-01 15:54:12,432 INFO L796 eck$LassoCheckResult]: Loop: 2498#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2499#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2498#L55-2 [2020-12-01 15:54:12,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:12,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1199820568, now seen corresponding path program 2 times [2020-12-01 15:54:12,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:12,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585654249] [2020-12-01 15:54:12,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,478 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:12,478 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 6 times [2020-12-01 15:54:12,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:12,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574524600] [2020-12-01 15:54:12,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,482 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:12,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327925, now seen corresponding path program 2 times [2020-12-01 15:54:12,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:12,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728790019] [2020-12-01 15:54:12,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:12,531 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:12,553 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:21,796 WARN L197 SmtUtils]: Spent 9.16 s on a formula simplification. DAG size of input: 320 DAG size of output: 241 [2020-12-01 15:54:22,772 WARN L197 SmtUtils]: Spent 908.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-01 15:54:22,775 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:54:22,776 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:54:22,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:54:22,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:54:22,776 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:54:22,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:22,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:54:22,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:54:22,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration15_Lasso [2020-12-01 15:54:22,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:54:22,776 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:54:22,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:22,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,166 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2020-12-01 15:54:24,340 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2020-12-01 15:54:24,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,363 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:24,999 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:54:25,000 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:25,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,036 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,037 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,038 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,038 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,104 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,105 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,105 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,106 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,106 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 98 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,135 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 99 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 100 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,192 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,193 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,195 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 101 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,222 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,222 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,223 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 102 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 103 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,297 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,299 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,300 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,300 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,301 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 104 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,332 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,332 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,351 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:25,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,404 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,404 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 105 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 106 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,434 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:54:25,434 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,434 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,436 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:54:25,436 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 107 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,468 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 108 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,512 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,512 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,515 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 109 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,543 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,543 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 110 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,570 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:54:25,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,572 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:54:25,572 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 111 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,600 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,600 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,600 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,600 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,602 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,602 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,605 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 112 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,629 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,631 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,634 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,634 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 113 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,667 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:54:25,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,674 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-12-01 15:54:25,674 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,696 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 114 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,728 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,728 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,730 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,730 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 115 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,759 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,762 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,763 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,773 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:25,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 116 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,802 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 117 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,834 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,834 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 118 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,864 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,864 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,866 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 119 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,897 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:25,897 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,897 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,897 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,898 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:25,898 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:25,899 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 120 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,924 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,931 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 121 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,955 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,956 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:25,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 122 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:25,984 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:25,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:25,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:25,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:25,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:25,995 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:25,995 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:26,013 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:54:26,067 INFO L443 ModelExtractionUtils]: Simplification made 23 calls to the SMT solver. [2020-12-01 15:54:26,067 INFO L444 ModelExtractionUtils]: 13 out of 31 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 123 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:26,078 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:54:26,080 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:54:26,080 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:54:26,080 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 3 Supporting invariants [] [2020-12-01 15:54:26,333 INFO L297 tatePredicateManager]: 46 out of 49 supporting invariants were superfluous and have been removed [2020-12-01 15:54:26,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:26,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:26,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-01 15:54:26,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:26,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:26,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:54:26,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:26,726 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-12-01 15:54:26,727 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6 Second operand 8 states. [2020-12-01 15:54:26,869 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 47 transitions. cyclomatic complexity: 6. Second operand 8 states. Result 55 states and 62 transitions. Complement of second has 11 states. [2020-12-01 15:54:26,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:54:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:54:26,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 30 transitions. [2020-12-01 15:54:26,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 42 letters. Loop has 2 letters. [2020-12-01 15:54:26,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:26,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 44 letters. Loop has 2 letters. [2020-12-01 15:54:26,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:26,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 30 transitions. Stem has 42 letters. Loop has 4 letters. [2020-12-01 15:54:26,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:26,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 55 states and 62 transitions. [2020-12-01 15:54:26,873 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:26,875 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 55 states to 55 states and 62 transitions. [2020-12-01 15:54:26,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2020-12-01 15:54:26,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2020-12-01 15:54:26,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 62 transitions. [2020-12-01 15:54:26,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:26,876 INFO L692 BuchiCegarLoop]: Abstraction has 55 states and 62 transitions. [2020-12-01 15:54:26,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 62 transitions. [2020-12-01 15:54:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 52. [2020-12-01 15:54:26,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:54:26,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2020-12-01 15:54:26,880 INFO L715 BuchiCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-12-01 15:54:26,880 INFO L595 BuchiCegarLoop]: Abstraction has 52 states and 58 transitions. [2020-12-01 15:54:26,880 INFO L427 BuchiCegarLoop]: ======== Iteration 16============ [2020-12-01 15:54:26,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 58 transitions. [2020-12-01 15:54:26,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:26,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:26,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:26,882 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:26,882 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:26,883 INFO L794 eck$LassoCheckResult]: Stem: 2977#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 2969#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 2965#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2966#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2970#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3007#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3005#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3003#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3001#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2999#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2994#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 2991#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 2988#L33-3 assume !(main_~i~0 < 5); 2963#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 2964#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 2982#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2983#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2985#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3006#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3004#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3002#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3000#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2995#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2992#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 2989#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 2986#L37-3 assume !(main_~i~0 < 5); 2981#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 2958#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 2959#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2960#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2961#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2962#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 2968#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 2967#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 2956#L42-4 main_~nc_B~0 := 0; 2957#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2978#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2979#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2980#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 2998#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 2993#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 2990#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 2987#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2976#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 2972#L55-2 [2020-12-01 15:54:26,883 INFO L796 eck$LassoCheckResult]: Loop: 2972#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 2973#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 2972#L55-2 [2020-12-01 15:54:26,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:26,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1976327923, now seen corresponding path program 3 times [2020-12-01 15:54:26,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:26,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28343342] [2020-12-01 15:54:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:26,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:26,906 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:26,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:26,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:26,948 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:26,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:26,949 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 7 times [2020-12-01 15:54:26,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:26,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801008673] [2020-12-01 15:54:26,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:26,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:26,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:26,957 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:26,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:26,958 INFO L82 PathProgramCache]: Analyzing trace with hash -875586576, now seen corresponding path program 2 times [2020-12-01 15:54:26,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:26,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776045958] [2020-12-01 15:54:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:26,982 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:27,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:27,016 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:33,888 WARN L197 SmtUtils]: Spent 6.79 s on a formula simplification. DAG size of input: 345 DAG size of output: 258 [2020-12-01 15:54:34,922 WARN L197 SmtUtils]: Spent 957.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-12-01 15:54:34,926 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:54:34,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:54:34,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:54:34,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:54:34,926 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:54:34,926 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:34,926 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:54:34,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:54:34,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration16_Lasso [2020-12-01 15:54:34,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:54:34,927 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:54:34,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:34,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,461 WARN L197 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2020-12-01 15:54:36,657 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2020-12-01 15:54:36,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:36,981 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-01 15:54:38,307 WARN L197 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-01 15:54:38,342 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:54:38,342 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 124 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,346 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,346 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,347 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,347 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 125 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,375 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 126 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,406 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 127 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 128 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,466 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,466 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,466 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 129 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,494 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,497 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 130 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 131 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 132 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,577 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,583 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 133 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,608 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,608 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,608 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,608 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,609 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,609 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,610 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 134 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,636 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,636 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,637 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 135 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,661 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,661 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,662 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,662 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,663 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 136 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,686 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,688 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,688 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,688 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,688 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,688 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,697 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 137 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,720 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,723 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,725 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 138 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,750 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,750 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,753 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 139 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,780 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 140 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,817 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,817 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:38,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,818 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:38,818 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:38,819 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 141 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,846 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,846 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:38,855 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:38,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,920 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,920 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 142 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:38,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:38,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:38,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:38,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:38,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:38,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:38,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:38,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 143 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,003 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:39,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:39,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:39,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:39,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:39,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:39,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:39,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 144 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,063 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:39,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:39,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:39,104 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:54:39,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:39,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:39,106 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:54:39,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 145 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,119 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:39,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:39,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:39,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:39,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:39,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:39,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:39,165 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 146 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,179 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:39,219 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:39,221 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:39,221 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:39,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:39,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:39,234 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:39,234 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 147 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,260 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:54:39,311 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-12-01 15:54:39,311 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:39,316 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 148 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:39,340 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:54:39,340 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:54:39,341 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6) = -2*ULTIMATE.start_main_~j~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_6 Supporting invariants [] [2020-12-01 15:54:39,884 INFO L297 tatePredicateManager]: 67 out of 69 supporting invariants were superfluous and have been removed [2020-12-01 15:54:39,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:54:39,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:39,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:54:39,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:40,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:54:40,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:40,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:40,225 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.5 stem predicates 2 loop predicates [2020-12-01 15:54:40,225 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 58 transitions. cyclomatic complexity: 10 Second operand 7 states. [2020-12-01 15:54:40,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 58 transitions. cyclomatic complexity: 10. Second operand 7 states. Result 61 states and 71 transitions. Complement of second has 10 states. [2020-12-01 15:54:40,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 5 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:54:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-12-01 15:54:40,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 36 transitions. [2020-12-01 15:54:40,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 2 letters. [2020-12-01 15:54:40,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:40,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 46 letters. Loop has 2 letters. [2020-12-01 15:54:40,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:40,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 36 transitions. Stem has 44 letters. Loop has 4 letters. [2020-12-01 15:54:40,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:40,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 61 states and 71 transitions. [2020-12-01 15:54:40,404 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:54:40,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 61 states to 61 states and 71 transitions. [2020-12-01 15:54:40,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 44 [2020-12-01 15:54:40,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2020-12-01 15:54:40,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 71 transitions. [2020-12-01 15:54:40,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:40,406 INFO L692 BuchiCegarLoop]: Abstraction has 61 states and 71 transitions. [2020-12-01 15:54:40,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 71 transitions. [2020-12-01 15:54:40,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 56. [2020-12-01 15:54:40,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-01 15:54:40,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-12-01 15:54:40,408 INFO L715 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-12-01 15:54:40,408 INFO L595 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-12-01 15:54:40,408 INFO L427 BuchiCegarLoop]: ======== Iteration 17============ [2020-12-01 15:54:40,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 64 transitions. [2020-12-01 15:54:40,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:40,409 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:40,409 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:40,410 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:40,410 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:40,411 INFO L794 eck$LassoCheckResult]: Stem: 3546#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 3539#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 3535#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3536#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3538#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3570#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3568#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3566#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3564#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3562#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3560#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 3558#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 3556#L33-3 assume !(main_~i~0 < 5); 3533#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 3534#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 3551#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3552#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3554#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3569#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3567#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3565#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3563#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3561#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3559#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 3557#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 3555#L37-3 assume !(main_~i~0 < 5); 3550#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 3528#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 3529#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3530#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3531#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3532#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 3571#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 3537#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 3526#L42-4 main_~nc_B~0 := 0; 3527#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3547#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3548#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3549#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3579#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3574#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 3573#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 3553#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 3540#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 3541#L55-2 [2020-12-01 15:54:40,411 INFO L796 eck$LassoCheckResult]: Loop: 3541#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 3542#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 3541#L55-2 [2020-12-01 15:54:40,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:40,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1976281437, now seen corresponding path program 3 times [2020-12-01 15:54:40,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:40,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602557687] [2020-12-01 15:54:40,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,464 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,471 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:40,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:40,472 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 8 times [2020-12-01 15:54:40,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:40,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178214940] [2020-12-01 15:54:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:40,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,476 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,480 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:40,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:40,480 INFO L82 PathProgramCache]: Analyzing trace with hash -830913530, now seen corresponding path program 3 times [2020-12-01 15:54:40,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:40,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47075104] [2020-12-01 15:54:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,501 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:40,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:40,529 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:48,369 WARN L197 SmtUtils]: Spent 7.75 s on a formula simplification. DAG size of input: 332 DAG size of output: 248 [2020-12-01 15:54:48,839 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-12-01 15:54:48,843 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:54:48,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:54:48,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:54:48,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:54:48,843 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:54:48,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:48,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:54:48,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:54:48,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration17_Lasso [2020-12-01 15:54:48,843 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:54:48,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:54:48,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,884 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:48,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:54:49,975 WARN L197 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2020-12-01 15:54:50,925 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:54:50,925 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 149 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:50,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:50,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:50,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:50,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:50,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:50,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:50,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:50,936 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 150 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:50,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:50,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:50,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:50,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:50,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:50,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:50,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:50,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:50,963 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 151 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:50,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:50,989 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:50,989 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:50,989 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:50,989 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:50,989 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:50,990 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:50,990 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:50,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 152 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 153 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,046 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,049 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 154 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,076 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,076 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,077 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 155 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 156 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,135 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 157 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 158 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,189 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,191 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 159 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 160 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 161 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,274 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,274 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,274 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,274 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,276 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 162 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,301 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,301 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,302 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,302 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 163 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,330 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 164 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 165 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 166 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,434 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 167 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 168 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,489 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,493 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,494 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,496 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 169 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,521 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,521 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:51,576 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,580 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,581 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 170 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:51,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,641 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 171 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,652 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 172 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:51,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,694 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,694 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,694 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 172 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,696 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,696 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 173 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 173 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,724 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:54:51,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,726 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:54:51,726 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:54:51,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 174 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 174 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,755 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,756 INFO L203 nArgumentSynthesizer]: 4 stem disjuncts [2020-12-01 15:54:51,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,756 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,762 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-12-01 15:54:51,762 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,771 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 175 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 175 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,797 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,798 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,798 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,798 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,802 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 176 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 176 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,829 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,829 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,836 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 177 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 177 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,863 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,863 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 178 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 178 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:51,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,891 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,892 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,893 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:54:51,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 179 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:51,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:54:51,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:54:51,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:54:51,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:54:51,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:54:51,987 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:54:51,987 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 179 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:52,012 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:54:52,043 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-12-01 15:54:52,043 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 180 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:54:52,046 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 180 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:54:52,061 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:54:52,061 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:54:52,061 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~#string_B~0.offset, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_7, ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~#string_B~0.offset + 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_7 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:54:52,522 INFO L297 tatePredicateManager]: 56 out of 58 supporting invariants were superfluous and have been removed [2020-12-01 15:54:52,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:54:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:52,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:52,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:54:52,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:52,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:54:52,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:54:52,751 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 [2020-12-01 15:54:52,751 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 56 states and 64 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-12-01 15:54:52,847 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 56 states and 64 transitions. cyclomatic complexity: 13. Second operand 4 states. Result 62 states and 74 transitions. Complement of second has 6 states. [2020-12-01 15:54:52,848 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 [2020-12-01 15:54:52,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-12-01 15:54:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-12-01 15:54:52,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 44 letters. Loop has 2 letters. [2020-12-01 15:54:52,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:52,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 46 letters. Loop has 2 letters. [2020-12-01 15:54:52,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:52,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 44 letters. Loop has 4 letters. [2020-12-01 15:54:52,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:54:52,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 74 transitions. [2020-12-01 15:54:52,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:52,852 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 70 transitions. [2020-12-01 15:54:52,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2020-12-01 15:54:52,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 44 [2020-12-01 15:54:52,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 70 transitions. [2020-12-01 15:54:52,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:52,853 INFO L692 BuchiCegarLoop]: Abstraction has 60 states and 70 transitions. [2020-12-01 15:54:52,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 70 transitions. [2020-12-01 15:54:52,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2020-12-01 15:54:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-12-01 15:54:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2020-12-01 15:54:52,856 INFO L715 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-12-01 15:54:52,856 INFO L595 BuchiCegarLoop]: Abstraction has 56 states and 64 transitions. [2020-12-01 15:54:52,856 INFO L427 BuchiCegarLoop]: ======== Iteration 18============ [2020-12-01 15:54:52,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 56 states and 64 transitions. [2020-12-01 15:54:52,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:52,857 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:52,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:52,859 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:52,859 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:52,859 INFO L794 eck$LassoCheckResult]: Stem: 4064#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4055#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4052#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4053#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4056#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4091#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4089#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4087#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4085#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4083#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4081#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4079#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4077#L33-3 assume !(main_~i~0 < 5); 4050#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4051#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4070#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4071#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4075#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4090#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4088#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4086#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4084#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4082#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4080#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4078#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4076#L37-3 assume !(main_~i~0 < 5); 4068#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4045#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4046#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4047#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4048#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4049#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4092#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4054#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4043#L42-4 main_~nc_B~0 := 0; 4044#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4065#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4066#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4067#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4098#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4097#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4096#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4095#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4069#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4058#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4063#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4059#L55-2 [2020-12-01 15:54:52,859 INFO L796 eck$LassoCheckResult]: Loop: 4059#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4060#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4059#L55-2 [2020-12-01 15:54:52,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:52,860 INFO L82 PathProgramCache]: Analyzing trace with hash -875586574, now seen corresponding path program 4 times [2020-12-01 15:54:52,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:52,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026146570] [2020-12-01 15:54:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:52,884 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:52,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:52,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:52,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:52,916 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 9 times [2020-12-01 15:54:52,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:52,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155684910] [2020-12-01 15:54:52,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:52,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:52,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:52,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:52,923 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:52,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:52,924 INFO L82 PathProgramCache]: Analyzing trace with hash 374894997, now seen corresponding path program 3 times [2020-12-01 15:54:52,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:52,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432047197] [2020-12-01 15:54:52,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:54:53,031 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-12-01 15:54:53,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432047197] [2020-12-01 15:54:53,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258237365] [2020-12-01 15:54:53,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 181 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:54:53,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2020-12-01 15:54:53,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:54:53,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 15:54:53,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:54:53,303 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2020-12-01 15:54:53,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:54:53,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-12-01 15:54:53,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839532177] [2020-12-01 15:54:53,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:54:53,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:54:53,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:54:53,398 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. cyclomatic complexity: 13 Second operand 14 states. [2020-12-01 15:54:53,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:54:53,975 INFO L93 Difference]: Finished difference Result 91 states and 102 transitions. [2020-12-01 15:54:53,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-01 15:54:53,975 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 102 transitions. [2020-12-01 15:54:53,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:53,977 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 54 states and 59 transitions. [2020-12-01 15:54:53,977 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-12-01 15:54:53,977 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2020-12-01 15:54:53,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 59 transitions. [2020-12-01 15:54:53,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:54:53,978 INFO L692 BuchiCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-12-01 15:54:53,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 59 transitions. [2020-12-01 15:54:53,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2020-12-01 15:54:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-01 15:54:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 57 transitions. [2020-12-01 15:54:53,983 INFO L715 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-12-01 15:54:53,983 INFO L595 BuchiCegarLoop]: Abstraction has 52 states and 57 transitions. [2020-12-01 15:54:53,983 INFO L427 BuchiCegarLoop]: ======== Iteration 19============ [2020-12-01 15:54:53,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 57 transitions. [2020-12-01 15:54:53,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:54:53,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:54:53,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:54:53,990 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:54:53,990 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:54:53,991 INFO L794 eck$LassoCheckResult]: Stem: 4395#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4385#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4386#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4387#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4381#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4382#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4419#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4417#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4415#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4413#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4411#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4409#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4406#L33-3 assume !(main_~i~0 < 5); 4379#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4380#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4400#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4401#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4404#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4420#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4418#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4416#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4414#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4412#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4410#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4408#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4405#L37-3 assume !(main_~i~0 < 5); 4399#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4374#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4375#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4376#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4377#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4378#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4384#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4422#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4421#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4383#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4372#L42-4 main_~nc_B~0 := 0; 4373#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4396#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4403#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4423#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4397#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4398#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4407#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4402#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4388#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4389#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4394#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4390#L55-2 [2020-12-01 15:54:53,991 INFO L796 eck$LassoCheckResult]: Loop: 4390#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4391#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4390#L55-2 [2020-12-01 15:54:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:53,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 5 times [2020-12-01 15:54:53,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:53,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487779205] [2020-12-01 15:54:53,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:54,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,027 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,069 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,076 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:54,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:54,079 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 10 times [2020-12-01 15:54:54,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:54,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492662807] [2020-12-01 15:54:54,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,086 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,087 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:54:54,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:54:54,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851760, now seen corresponding path program 4 times [2020-12-01 15:54:54,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:54:54,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425217388] [2020-12-01 15:54:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:54:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,122 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:54:54,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:54:54,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:03,944 WARN L197 SmtUtils]: Spent 9.65 s on a formula simplification. DAG size of input: 369 DAG size of output: 281 [2020-12-01 15:55:05,666 WARN L197 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 169 [2020-12-01 15:55:05,670 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:55:05,670 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:55:05,670 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:55:05,670 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:55:05,670 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:55:05,670 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:05,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:55:05,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:55:05,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration19_Lasso [2020-12-01 15:55:05,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:55:05,671 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:55:05,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,689 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:05,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,038 WARN L197 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2020-12-01 15:55:08,225 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-01 15:55:08,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:08,531 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-01 15:55:09,340 WARN L197 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-01 15:55:09,527 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:55:09,527 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 182 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 182 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,529 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,531 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,531 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,531 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 183 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 183 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:09,563 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:09,565 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 184 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 184 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 185 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 185 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,628 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,629 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,631 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 186 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 186 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,653 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,656 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:09,656 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:09,658 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 187 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 187 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,681 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 188 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 188 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,707 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,709 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,709 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 189 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 189 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,735 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,735 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,736 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,759 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 190 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 190 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,791 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 191 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 191 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,826 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,827 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,827 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,827 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 192 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 192 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,860 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,861 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,861 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,861 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,862 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 193 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 193 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,887 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,887 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,887 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,887 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,887 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,887 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,888 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,889 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 194 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 194 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,912 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,913 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:09,913 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:09,916 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 195 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 195 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:09,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,940 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:09,940 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:09,941 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 196 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 196 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:09,963 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:09,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:09,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:09,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:09,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:09,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:09,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:09,975 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 197 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 197 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,001 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:10,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,003 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:10,003 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 198 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 198 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,043 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,047 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,047 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 199 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 199 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,075 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,075 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,078 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 200 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 200 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,104 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 201 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 201 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,132 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,132 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:10,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:10,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:10,134 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 202 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 202 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,161 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,161 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 203 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:10,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 203 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 204 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 204 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,218 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,221 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 205 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 205 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,269 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-12-01 15:55:10,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,291 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-12-01 15:55:10,291 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 206 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:10,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 206 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,354 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,359 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 207 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 207 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,382 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:10,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,383 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:10,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 208 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 208 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:10,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:10,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:10,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:10,411 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:10,428 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:10,428 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:10,444 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:55:10,469 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 15:55:10,469 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 209 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 209 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:10,472 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:55:10,474 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:55:10,474 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:55:10,474 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2020-12-01 15:55:10,917 INFO L297 tatePredicateManager]: 55 out of 57 supporting invariants were superfluous and have been removed [2020-12-01 15:55:10,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:11,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:55:11,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:11,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:11,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:55:11,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:11,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:11,427 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2020-12-01 15:55:11,427 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9 Second operand 12 states. [2020-12-01 15:55:11,836 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 57 transitions. cyclomatic complexity: 9. Second operand 12 states. Result 85 states and 100 transitions. Complement of second has 15 states. [2020-12-01 15:55:11,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 10 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:55:11,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:55:11,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 55 transitions. [2020-12-01 15:55:11,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 48 letters. Loop has 2 letters. [2020-12-01 15:55:11,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:11,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:55:11,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:11,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 55 transitions. Stem has 48 letters. Loop has 4 letters. [2020-12-01 15:55:11,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:11,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 100 transitions. [2020-12-01 15:55:11,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:55:11,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 85 states and 100 transitions. [2020-12-01 15:55:11,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-12-01 15:55:11,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 53 [2020-12-01 15:55:11,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 85 states and 100 transitions. [2020-12-01 15:55:11,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:55:11,842 INFO L692 BuchiCegarLoop]: Abstraction has 85 states and 100 transitions. [2020-12-01 15:55:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states and 100 transitions. [2020-12-01 15:55:11,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 69. [2020-12-01 15:55:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-12-01 15:55:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2020-12-01 15:55:11,845 INFO L715 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-12-01 15:55:11,845 INFO L595 BuchiCegarLoop]: Abstraction has 69 states and 78 transitions. [2020-12-01 15:55:11,845 INFO L427 BuchiCegarLoop]: ======== Iteration 20============ [2020-12-01 15:55:11,845 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 78 transitions. [2020-12-01 15:55:11,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:55:11,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:55:11,846 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:55:11,847 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:11,847 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:55:11,847 INFO L794 eck$LassoCheckResult]: Stem: 4967#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 4957#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 4958#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4959#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4954#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4955#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4990#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4988#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4986#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4984#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4982#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 4980#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 4978#L33-3 assume !(main_~i~0 < 5); 4952#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 4953#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 4973#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4974#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4976#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4991#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4989#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4987#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4985#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4983#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4981#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 4979#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 4977#L37-3 assume !(main_~i~0 < 5); 4972#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 4951#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 4947#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4948#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4949#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4950#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4994#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4995#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5013#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4993#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 4992#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 4956#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 4945#L42-4 main_~nc_B~0 := 0; 4946#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5010#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5009#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5008#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4998#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4997#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 4996#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 4975#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 4960#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 4961#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4966#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 4962#L55-2 [2020-12-01 15:55:11,847 INFO L796 eck$LassoCheckResult]: Loop: 4962#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 4963#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 4962#L55-2 [2020-12-01 15:55:11,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:11,848 INFO L82 PathProgramCache]: Analyzing trace with hash -456376174, now seen corresponding path program 6 times [2020-12-01 15:55:11,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:11,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505591459] [2020-12-01 15:55:11,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:55:12,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505591459] [2020-12-01 15:55:12,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821084853] [2020-12-01 15:55:12,035 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 210 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 210 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:55:12,173 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-12-01 15:55:12,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:55:12,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:55:12,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:12,399 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-12-01 15:55:12,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:55:12,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2020-12-01 15:55:12,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387350713] [2020-12-01 15:55:12,401 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:55:12,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:12,401 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 11 times [2020-12-01 15:55:12,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:12,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772971648] [2020-12-01 15:55:12,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,409 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:12,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:55:12,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-01 15:55:12,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=150, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:55:12,502 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. cyclomatic complexity: 14 Second operand 16 states. [2020-12-01 15:55:12,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:55:12,754 INFO L93 Difference]: Finished difference Result 85 states and 98 transitions. [2020-12-01 15:55:12,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-01 15:55:12,756 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 98 transitions. [2020-12-01 15:55:12,757 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-12-01 15:55:12,758 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 83 states and 96 transitions. [2020-12-01 15:55:12,758 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-12-01 15:55:12,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2020-12-01 15:55:12,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 96 transitions. [2020-12-01 15:55:12,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:55:12,758 INFO L692 BuchiCegarLoop]: Abstraction has 83 states and 96 transitions. [2020-12-01 15:55:12,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 96 transitions. [2020-12-01 15:55:12,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 71. [2020-12-01 15:55:12,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-01 15:55:12,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2020-12-01 15:55:12,761 INFO L715 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-12-01 15:55:12,761 INFO L595 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-12-01 15:55:12,761 INFO L427 BuchiCegarLoop]: ======== Iteration 21============ [2020-12-01 15:55:12,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 80 transitions. [2020-12-01 15:55:12,762 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:55:12,762 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:55:12,762 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:55:12,763 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:12,763 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:55:12,763 INFO L794 eck$LassoCheckResult]: Stem: 5293#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5283#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5284#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5285#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5280#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5281#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5317#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5315#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5313#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5311#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5309#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5307#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5305#L33-3 assume !(main_~i~0 < 5); 5278#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5279#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5299#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5300#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5304#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5319#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5318#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5316#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5314#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5312#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5310#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5308#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5306#L37-3 assume !(main_~i~0 < 5); 5298#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5273#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5274#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5275#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5276#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5277#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5323#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5322#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5320#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5282#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5271#L42-4 main_~nc_B~0 := 0; 5272#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5336#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5335#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5334#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5333#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5332#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5331#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5297#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5328#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5301#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5286#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5287#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5292#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5288#L55-2 [2020-12-01 15:55:12,763 INFO L796 eck$LassoCheckResult]: Loop: 5288#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5289#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5288#L55-2 [2020-12-01 15:55:12,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:12,764 INFO L82 PathProgramCache]: Analyzing trace with hash -1368178712, now seen corresponding path program 7 times [2020-12-01 15:55:12,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:12,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953142515] [2020-12-01 15:55:12,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,850 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,858 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:12,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:12,859 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 12 times [2020-12-01 15:55:12,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:12,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716634709] [2020-12-01 15:55:12,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,868 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:12,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:12,869 INFO L82 PathProgramCache]: Analyzing trace with hash -559747061, now seen corresponding path program 5 times [2020-12-01 15:55:12,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:12,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61734021] [2020-12-01 15:55:12,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:12,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:12,963 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:20,851 WARN L197 SmtUtils]: Spent 7.79 s on a formula simplification. DAG size of input: 381 DAG size of output: 284 [2020-12-01 15:55:22,066 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 156 [2020-12-01 15:55:22,071 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:55:22,071 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:55:22,071 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:55:22,071 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:55:22,071 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:55:22,071 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:22,071 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:55:22,071 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:55:22,071 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration21_Lasso [2020-12-01 15:55:22,071 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:55:22,071 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:55:22,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,079 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:22,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,057 WARN L197 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 97 [2020-12-01 15:55:24,320 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 15:55:24,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:24,671 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-01 15:55:25,484 WARN L197 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-01 15:55:25,827 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:55:25,827 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 211 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:25,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:25,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:25,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:25,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:25,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:25,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:25,832 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:25,832 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 211 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:25,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 212 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:25,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:25,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:25,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:25,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:25,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:25,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:25,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:25,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 212 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:25,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 213 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 213 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:25,933 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:25,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:25,935 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:25,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:25,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:25,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:25,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:25,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:25,939 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 214 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 214 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:25,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:25,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:25,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:25,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:25,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:25,965 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:25,966 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:25,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:25,967 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 215 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 215 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:25,991 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:25,992 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:25,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:25,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:25,993 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:25,993 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:25,993 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:25,993 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:25,994 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 216 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 216 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,020 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,022 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 217 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:26,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 217 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,053 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 218 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 218 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,082 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,082 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,086 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 219 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 219 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,113 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 220 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 220 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,141 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,141 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 221 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 221 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,170 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,170 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:26,170 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,171 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:26,171 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,175 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 222 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 222 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,205 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 223 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 223 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,239 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 224 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 224 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,272 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-12-01 15:55:26,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,311 INFO L401 nArgumentSynthesizer]: We have 28 Motzkin's Theorem applications. [2020-12-01 15:55:26,312 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 225 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 225 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,382 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 226 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 226 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,407 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,408 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,409 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,409 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 227 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 227 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 228 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 228 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,464 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,465 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,465 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 229 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 229 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,495 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:26,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,497 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:26,497 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 230 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 230 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,527 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,527 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,535 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 231 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 231 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,559 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,560 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,560 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,560 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,564 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 232 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 232 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,590 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,591 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,591 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,592 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 233 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 233 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,619 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,620 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 234 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 234 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,647 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,648 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,651 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 235 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 235 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,676 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,676 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:26,677 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,677 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,677 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,677 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:26,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:26,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 236 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 236 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:26,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:26,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:26,710 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:26,710 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:26,719 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:26,719 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:26,739 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:55:26,796 INFO L443 ModelExtractionUtils]: Simplification made 26 calls to the SMT solver. [2020-12-01 15:55:26,797 INFO L444 ModelExtractionUtils]: 6 out of 31 variables were initially zero. Simplification set additionally 22 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 237 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 237 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:26,799 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:55:26,804 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:55:26,805 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:55:26,805 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_9) = -2*ULTIMATE.start_main_~i~0 + 5*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_9 Supporting invariants [] [2020-12-01 15:55:27,304 INFO L297 tatePredicateManager]: 70 out of 72 supporting invariants were superfluous and have been removed [2020-12-01 15:55:27,311 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:55:27,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:27,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:55:27,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:27,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:55:27,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:27,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:27,801 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:55:27,802 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 14 Second operand 9 states. [2020-12-01 15:55:28,104 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 14. Second operand 9 states. Result 92 states and 111 transitions. Complement of second has 12 states. [2020-12-01 15:55:28,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:55:28,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:55:28,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 42 transitions. [2020-12-01 15:55:28,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:55:28,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:28,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:55:28,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:28,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 42 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 15:55:28,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:28,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2020-12-01 15:55:28,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:55:28,110 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 90 states and 107 transitions. [2020-12-01 15:55:28,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-12-01 15:55:28,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 55 [2020-12-01 15:55:28,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 107 transitions. [2020-12-01 15:55:28,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:55:28,111 INFO L692 BuchiCegarLoop]: Abstraction has 90 states and 107 transitions. [2020-12-01 15:55:28,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 107 transitions. [2020-12-01 15:55:28,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 71. [2020-12-01 15:55:28,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-01 15:55:28,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 80 transitions. [2020-12-01 15:55:28,113 INFO L715 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-12-01 15:55:28,113 INFO L595 BuchiCegarLoop]: Abstraction has 71 states and 80 transitions. [2020-12-01 15:55:28,113 INFO L427 BuchiCegarLoop]: ======== Iteration 22============ [2020-12-01 15:55:28,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 71 states and 80 transitions. [2020-12-01 15:55:28,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:55:28,114 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:55:28,114 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:55:28,116 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:28,116 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:55:28,116 INFO L794 eck$LassoCheckResult]: Stem: 5951#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 5941#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 5942#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5943#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5936#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5937#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5976#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5974#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5972#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5970#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5968#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 5966#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 5964#L33-3 assume !(main_~i~0 < 5); 5934#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 5935#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 5958#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5959#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5963#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5978#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5977#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5975#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5973#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5971#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5969#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 5967#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 5965#L37-3 assume !(main_~i~0 < 5); 5956#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 5929#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 5930#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5931#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5940#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5983#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5932#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5933#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 5982#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 5938#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 5939#L42-4 main_~nc_B~0 := 0; 5952#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5953#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5989#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5990#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5986#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5985#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 5984#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 5960#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 5961#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 5992#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5957#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5945#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5949#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 5946#L55-2 [2020-12-01 15:55:28,116 INFO L796 eck$LassoCheckResult]: Loop: 5946#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 5947#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 5946#L55-2 [2020-12-01 15:55:28,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:28,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1412851758, now seen corresponding path program 8 times [2020-12-01 15:55:28,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:28,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012287615] [2020-12-01 15:55:28,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:28,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:28,195 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 13 times [2020-12-01 15:55:28,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:28,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479905738] [2020-12-01 15:55:28,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,199 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,201 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,204 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:28,205 INFO L82 PathProgramCache]: Analyzing trace with hash -540871307, now seen corresponding path program 6 times [2020-12-01 15:55:28,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:28,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211051527] [2020-12-01 15:55:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:28,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,230 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:28,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:28,267 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:38,298 WARN L197 SmtUtils]: Spent 9.93 s on a formula simplification. DAG size of input: 393 DAG size of output: 292 [2020-12-01 15:55:39,500 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 156 [2020-12-01 15:55:39,504 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:55:39,505 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:55:39,505 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:55:39,505 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:55:39,505 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:55:39,505 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:39,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:55:39,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:55:39,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration22_Lasso [2020-12-01 15:55:39,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:55:39,506 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:55:39,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:39,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,676 WARN L197 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2020-12-01 15:55:41,918 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2020-12-01 15:55:41,919 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:41,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:55:42,416 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:55:46,120 WARN L197 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2020-12-01 15:55:46,179 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:55:46,179 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 238 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,201 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,201 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,201 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,201 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,201 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,201 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,202 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,203 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 239 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 239 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,228 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,235 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 240 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 240 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,263 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,263 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,266 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 241 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 241 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,291 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,293 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,296 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 242 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 242 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,320 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,322 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,322 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,324 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 243 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 243 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,347 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,347 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,347 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 244 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 244 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 245 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 245 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 246 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 246 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,429 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,429 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,438 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 247 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 247 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,466 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,466 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 248 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 248 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,496 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,498 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,499 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 249 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 249 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,528 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,530 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:46,530 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,530 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,531 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:46,531 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,548 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 250 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 250 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,577 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,577 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 251 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 251 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,608 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 252 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 252 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,634 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,635 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,635 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,635 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 253 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 253 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,679 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:55:46,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,681 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:55:46,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 254 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 254 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,708 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,711 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,714 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:46,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 255 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:55:46,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 256 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 256 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,779 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,779 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,779 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,781 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,781 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,785 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 257 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 257 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,811 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,812 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,812 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,815 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 258 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 258 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,846 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 259 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 259 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,870 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,873 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,874 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 260 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 260 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,911 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,912 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:46,912 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:55:46,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 261 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:46,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:46,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:46,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:55:46,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:46,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:46,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:46,967 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:55:46,967 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 261 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:46,979 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 262 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:47,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:55:47,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:55:47,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:55:47,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:55:47,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:55:47,037 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:55:47,037 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 262 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:47,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:55:47,096 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-12-01 15:55:47,096 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 263 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:55:47,104 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 263 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:55:47,120 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:55:47,121 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:55:47,121 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~nc_B~0) = -6*ULTIMATE.start_main_~j~0 + 5*ULTIMATE.start_main_~nc_B~0 Supporting invariants [] [2020-12-01 15:55:47,875 INFO L297 tatePredicateManager]: 73 out of 77 supporting invariants were superfluous and have been removed [2020-12-01 15:55:47,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:48,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:55:48,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:48,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:55:48,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:48,567 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2020-12-01 15:55:48,567 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 13 states. [2020-12-01 15:55:48,997 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 13 states. Result 95 states and 114 transitions. Complement of second has 16 states. [2020-12-01 15:55:48,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:55:48,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:55:48,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 55 transitions. [2020-12-01 15:55:48,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 55 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:55:49,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:49,000 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:55:49,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:49,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:55:49,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:49,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:55:49,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:49,669 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.11 stem predicates 2 loop predicates [2020-12-01 15:55:49,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 13 states. [2020-12-01 15:55:50,163 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 13 states. Result 95 states and 114 transitions. Complement of second has 16 states. [2020-12-01 15:55:50,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:55:50,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:55:50,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 55 transitions. [2020-12-01 15:55:50,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 55 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:55:50,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:50,166 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:55:50,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:50,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:55:50,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:55:50,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 15:55:50,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:55:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:55:50,845 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2020-12-01 15:55:50,845 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15 Second operand 13 states. [2020-12-01 15:55:51,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 71 states and 80 transitions. cyclomatic complexity: 15. Second operand 13 states. Result 103 states and 126 transitions. Complement of second has 16 states. [2020-12-01 15:55:51,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:55:51,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:55:51,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 58 transitions. [2020-12-01 15:55:51,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 58 transitions. Stem has 50 letters. Loop has 2 letters. [2020-12-01 15:55:51,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:51,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 58 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:55:51,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:51,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 58 transitions. Stem has 50 letters. Loop has 4 letters. [2020-12-01 15:55:51,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:55:51,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 126 transitions. [2020-12-01 15:55:51,366 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 12 [2020-12-01 15:55:51,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 101 states and 122 transitions. [2020-12-01 15:55:51,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2020-12-01 15:55:51,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2020-12-01 15:55:51,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 122 transitions. [2020-12-01 15:55:51,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:55:51,368 INFO L692 BuchiCegarLoop]: Abstraction has 101 states and 122 transitions. [2020-12-01 15:55:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 122 transitions. [2020-12-01 15:55:51,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 79. [2020-12-01 15:55:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-01 15:55:51,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2020-12-01 15:55:51,371 INFO L715 BuchiCegarLoop]: Abstraction has 79 states and 91 transitions. [2020-12-01 15:55:51,371 INFO L595 BuchiCegarLoop]: Abstraction has 79 states and 91 transitions. [2020-12-01 15:55:51,371 INFO L427 BuchiCegarLoop]: ======== Iteration 23============ [2020-12-01 15:55:51,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states and 91 transitions. [2020-12-01 15:55:51,372 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:55:51,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:55:51,372 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:55:51,373 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:55:51,373 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:55:51,374 INFO L794 eck$LassoCheckResult]: Stem: 7237#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7227#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7228#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7229#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7223#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7224#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7260#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7258#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7256#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7254#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7252#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7250#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7248#L33-3 assume !(main_~i~0 < 5); 7221#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7222#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7243#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7244#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7247#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7262#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7261#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7259#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7257#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7255#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7253#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7251#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7249#L37-3 assume !(main_~i~0 < 5); 7242#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7216#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7217#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7218#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7226#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7265#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7219#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7220#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7263#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7225#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7214#L42-4 main_~nc_B~0 := 0; 7215#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7276#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7277#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7272#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7273#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7292#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7266#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7268#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7230#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7231#L55-2 [2020-12-01 15:55:51,374 INFO L796 eck$LassoCheckResult]: Loop: 7231#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7236#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7231#L55-2 [2020-12-01 15:55:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:51,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1972313288, now seen corresponding path program 4 times [2020-12-01 15:55:51,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:51,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562796418] [2020-12-01 15:55:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,426 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:51,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:51,426 INFO L82 PathProgramCache]: Analyzing trace with hash 3558, now seen corresponding path program 1 times [2020-12-01 15:55:51,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:51,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336607297] [2020-12-01 15:55:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,430 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,432 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,433 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:55:51,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:55:51,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1312494829, now seen corresponding path program 9 times [2020-12-01 15:55:51,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:55:51,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604143935] [2020-12-01 15:55:51,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:55:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,456 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:55:51,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:55:51,485 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:06,977 WARN L197 SmtUtils]: Spent 15.37 s on a formula simplification. DAG size of input: 344 DAG size of output: 261 [2020-12-01 15:56:08,355 WARN L197 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 152 [2020-12-01 15:56:08,359 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:56:08,359 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:56:08,359 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:56:08,359 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:56:08,360 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:56:08,360 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:08,360 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:56:08,360 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:56:08,360 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration23_Lasso [2020-12-01 15:56:08,360 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:56:08,360 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:56:08,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:08,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,551 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2020-12-01 15:56:10,801 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2020-12-01 15:56:10,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,816 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:10,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:11,062 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-01 15:56:11,804 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:56:12,044 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:56:12,044 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 264 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:56:12,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,076 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,077 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,077 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 264 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,091 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 265 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:56:12,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,139 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 265 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,163 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 266 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:56:12,209 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,218 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:12,219 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:12,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 266 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 267 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 267 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,262 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:12,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 268 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 268 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:12,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 269 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 269 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,325 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:12,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:12,328 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 270 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 270 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,352 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,353 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,353 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,354 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,354 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:12,355 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 271 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 271 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,379 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,379 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,379 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,379 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,379 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:12,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 272 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 272 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:12,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:12,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:12,407 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 273 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 273 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:12,433 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:12,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:12,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:12,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:12,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:12,442 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:12,458 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:56:12,514 INFO L443 ModelExtractionUtils]: Simplification made 24 calls to the SMT solver. [2020-12-01 15:56:12,514 INFO L444 ModelExtractionUtils]: 2 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 274 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 274 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:12,516 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:56:12,520 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:56:12,521 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:56:12,521 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~i~0) = 5*ULTIMATE.start_main_~nc_A~0 - 6*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:56:12,972 INFO L297 tatePredicateManager]: 68 out of 72 supporting invariants were superfluous and have been removed [2020-12-01 15:56:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:13,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 15:56:13,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:13,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:56:13,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:56:13,734 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.11 stem predicates 2 loop predicates [2020-12-01 15:56:13,734 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79 states and 91 transitions. cyclomatic complexity: 19 Second operand 13 states. [2020-12-01 15:56:14,210 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79 states and 91 transitions. cyclomatic complexity: 19. Second operand 13 states. Result 95 states and 113 transitions. Complement of second has 16 states. [2020-12-01 15:56:14,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 11 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:56:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-01 15:56:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 47 transitions. [2020-12-01 15:56:14,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 46 letters. Loop has 2 letters. [2020-12-01 15:56:14,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:14,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 48 letters. Loop has 2 letters. [2020-12-01 15:56:14,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:14,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 47 transitions. Stem has 46 letters. Loop has 4 letters. [2020-12-01 15:56:14,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:14,214 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 113 transitions. [2020-12-01 15:56:14,216 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:56:14,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 93 states and 109 transitions. [2020-12-01 15:56:14,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2020-12-01 15:56:14,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-12-01 15:56:14,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 109 transitions. [2020-12-01 15:56:14,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:56:14,218 INFO L692 BuchiCegarLoop]: Abstraction has 93 states and 109 transitions. [2020-12-01 15:56:14,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 109 transitions. [2020-12-01 15:56:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 82. [2020-12-01 15:56:14,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-12-01 15:56:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 96 transitions. [2020-12-01 15:56:14,221 INFO L715 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2020-12-01 15:56:14,221 INFO L595 BuchiCegarLoop]: Abstraction has 82 states and 96 transitions. [2020-12-01 15:56:14,221 INFO L427 BuchiCegarLoop]: ======== Iteration 24============ [2020-12-01 15:56:14,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 96 transitions. [2020-12-01 15:56:14,222 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:56:14,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:56:14,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:56:14,224 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:14,224 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:56:14,224 INFO L794 eck$LassoCheckResult]: Stem: 7903#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 7895#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 7896#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7897#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7890#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7891#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7931#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7929#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7927#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7925#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7923#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 7921#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 7919#L33-3 assume !(main_~i~0 < 5); 7888#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 7889#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 7913#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7914#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7918#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7933#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7932#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7930#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7928#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7926#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7924#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 7922#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 7920#L37-3 assume !(main_~i~0 < 5); 7908#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 7883#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 7884#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7885#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7894#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7938#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7886#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7887#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 7937#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 7892#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 7893#L42-4 main_~nc_B~0 := 0; 7904#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7905#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7917#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7944#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7945#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7958#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 7957#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 7956#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 7954#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 7953#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7949#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 7950#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7909#L55 [2020-12-01 15:56:14,224 INFO L796 eck$LassoCheckResult]: Loop: 7909#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 7910#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 7909#L55 [2020-12-01 15:56:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2032634054, now seen corresponding path program 4 times [2020-12-01 15:56:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:14,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837483342] [2020-12-01 15:56:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:14,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:14,281 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 2 times [2020-12-01 15:56:14,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:14,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863655806] [2020-12-01 15:56:14,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,286 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,288 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:14,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:14,288 INFO L82 PathProgramCache]: Analyzing trace with hash -848791039, now seen corresponding path program 7 times [2020-12-01 15:56:14,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:14,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402621187] [2020-12-01 15:56:14,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:14,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:14,346 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:28,918 WARN L197 SmtUtils]: Spent 14.46 s on a formula simplification. DAG size of input: 383 DAG size of output: 280 [2020-12-01 15:56:30,737 WARN L197 SmtUtils]: Spent 1.77 s on a formula simplification that was a NOOP. DAG size: 163 [2020-12-01 15:56:30,742 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:56:30,742 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:56:30,742 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:56:30,742 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:56:30,743 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:56:30,743 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:30,743 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:56:30,743 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:56:30,743 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration24_Lasso [2020-12-01 15:56:30,743 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:56:30,743 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:56:30,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:30,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:33,621 WARN L197 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 104 [2020-12-01 15:56:34,126 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2020-12-01 15:56:34,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,166 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:34,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:35,672 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 15:56:35,804 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 15:56:35,909 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:56:35,909 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 275 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 275 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:35,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:35,915 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:35,915 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:35,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:35,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:35,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:35,916 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:35,916 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:35,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 276 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 276 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:35,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:35,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:35,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:35,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:35,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:35,947 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:35,947 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:35,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 277 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 277 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:35,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:35,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:35,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:35,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:35,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:35,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:35,985 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:35,988 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 278 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 278 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:36,014 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:36,015 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:36,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:36,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:36,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:36,017 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:36,017 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:36,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 279 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 279 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:36,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:36,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:36,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:36,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:36,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:36,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:36,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:36,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 280 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 280 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:36,080 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:36,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:36,081 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:36,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:36,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:36,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:36,082 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:36,082 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:36,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 281 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 281 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:36,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:36,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:36,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:36,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:36,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:36,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:36,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:36,136 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:56:36,176 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-12-01 15:56:36,177 INFO L444 ModelExtractionUtils]: 9 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 282 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 282 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:36,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:56:36,184 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:56:36,185 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:56:36,185 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12, ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~i~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_12 + 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-12-01 15:56:36,658 INFO L297 tatePredicateManager]: 76 out of 78 supporting invariants were superfluous and have been removed [2020-12-01 15:56:36,668 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:56:36,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:36,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:36,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:56:36,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:37,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:56:37,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:56:37,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:56:37,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:56:37,361 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.10 stem predicates 2 loop predicates [2020-12-01 15:56:37,361 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 22 Second operand 12 states. [2020-12-01 15:56:37,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82 states and 96 transitions. cyclomatic complexity: 22. Second operand 12 states. Result 104 states and 124 transitions. Complement of second has 17 states. [2020-12-01 15:56:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 10 stem states 2 non-accepting loop states 2 accepting loop states [2020-12-01 15:56:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:56:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 53 transitions. [2020-12-01 15:56:37,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 53 transitions. Stem has 49 letters. Loop has 2 letters. [2020-12-01 15:56:37,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:37,899 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 53 transitions. Stem has 51 letters. Loop has 2 letters. [2020-12-01 15:56:37,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:37,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 53 transitions. Stem has 49 letters. Loop has 4 letters. [2020-12-01 15:56:37,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:56:37,900 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 104 states and 124 transitions. [2020-12-01 15:56:37,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:56:37,902 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 104 states to 82 states and 93 transitions. [2020-12-01 15:56:37,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2020-12-01 15:56:37,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 49 [2020-12-01 15:56:37,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 93 transitions. [2020-12-01 15:56:37,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:56:37,903 INFO L692 BuchiCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-12-01 15:56:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 93 transitions. [2020-12-01 15:56:37,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 74. [2020-12-01 15:56:37,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-12-01 15:56:37,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 83 transitions. [2020-12-01 15:56:37,906 INFO L715 BuchiCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-12-01 15:56:37,906 INFO L595 BuchiCegarLoop]: Abstraction has 74 states and 83 transitions. [2020-12-01 15:56:37,906 INFO L427 BuchiCegarLoop]: ======== Iteration 25============ [2020-12-01 15:56:37,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 74 states and 83 transitions. [2020-12-01 15:56:37,907 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:56:37,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:56:37,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:56:37,908 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:56:37,908 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:56:37,909 INFO L794 eck$LassoCheckResult]: Stem: 8617#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 8607#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 8608#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8609#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8602#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8603#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8640#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8638#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8636#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8634#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8632#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 8630#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8628#L33-3 assume !(main_~i~0 < 5); 8600#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 8601#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 8623#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8624#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8627#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8642#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8641#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8639#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8637#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8635#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8633#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 8631#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 8629#L37-3 assume !(main_~i~0 < 5); 8621#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 8595#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 8596#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8597#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8648#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8649#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8598#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8599#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 8665#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 8664#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 8663#L42-4 main_~nc_B~0 := 0; 8662#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8661#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8660#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8659#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8658#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8657#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8650#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8646#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 8647#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 8625#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 8626#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 8655#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8654#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8614#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8615#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 8612#L55-2 [2020-12-01 15:56:37,909 INFO L796 eck$LassoCheckResult]: Loop: 8612#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 8613#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 8612#L55-2 [2020-12-01 15:56:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:37,910 INFO L82 PathProgramCache]: Analyzing trace with hash -559747059, now seen corresponding path program 10 times [2020-12-01 15:56:37,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:37,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154304089] [2020-12-01 15:56:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:37,976 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:38,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,018 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:38,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:38,019 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 14 times [2020-12-01 15:56:38,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:38,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79693386] [2020-12-01 15:56:38,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:38,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:38,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:38,024 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,025 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:38,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:56:38,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1046009104, now seen corresponding path program 8 times [2020-12-01 15:56:38,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:56:38,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567703187] [2020-12-01 15:56:38,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:56:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:38,053 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:56:38,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:56:38,090 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:56:48,407 WARN L197 SmtUtils]: Spent 10.21 s on a formula simplification. DAG size of input: 405 DAG size of output: 300 [2020-12-01 15:56:50,145 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 158 [2020-12-01 15:56:50,149 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:56:50,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:56:50,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:56:50,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:56:50,149 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:56:50,149 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:50,149 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:56:50,149 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:56:50,149 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration25_Lasso [2020-12-01 15:56:50,150 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:56:50,150 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:56:50,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,206 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:50,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:53,080 WARN L197 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 98 [2020-12-01 15:56:53,470 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2020-12-01 15:56:53,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:53,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:53,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:56:53,885 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-01 15:56:54,094 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 15:56:54,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:56:59,098 WARN L197 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2020-12-01 15:56:59,158 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:56:59,158 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 283 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 283 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,161 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 284 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 284 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,188 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,190 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,190 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,190 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 285 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 285 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,219 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 286 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 286 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,243 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,245 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,245 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,245 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,246 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 287 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 287 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,278 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,280 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,281 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,281 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 288 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:56:59,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 288 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,327 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 289 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 289 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,353 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,354 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 290 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 290 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,393 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 291 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 291 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,418 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 292 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 292 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,439 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,440 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,440 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,443 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 293 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 293 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,468 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 294 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 294 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,496 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,496 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,499 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 295 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 295 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,524 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,524 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,526 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 296 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 296 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 297 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 297 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,576 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,577 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 298 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 298 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,603 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,603 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,607 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 299 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 299 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,633 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,633 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,639 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 300 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 300 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,663 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,664 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,665 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,669 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 301 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 301 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,692 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,693 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,693 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,693 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,694 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,694 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,695 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 302 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 302 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,719 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:56:59,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,720 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,720 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:56:59,720 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:56:59,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 303 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 303 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,746 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,746 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,750 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 304 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 304 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,771 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,772 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:56:59,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,773 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:56:59,774 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,783 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 305 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 305 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 306 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 306 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,831 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,831 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,831 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,832 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 307 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 307 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,857 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:56:59,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,859 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:56:59,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 308 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 308 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,883 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,885 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,885 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,885 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,885 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,887 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,887 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,892 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 309 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 309 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,917 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,917 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,917 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,918 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,918 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,921 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 310 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 310 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,945 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:56:59,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 311 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 311 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:56:59,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:56:59,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:56:59,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:56:59,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:56:59,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:56:59,985 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:56:59,986 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:00,004 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:57:00,052 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-12-01 15:57:00,053 INFO L444 ModelExtractionUtils]: 0 out of 31 variables were initially zero. Simplification set additionally 28 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 312 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 312 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:00,055 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:57:00,056 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:57:00,057 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:57:00,057 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13, ULTIMATE.start_main_~j~0) = 1*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_13 - 2*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-12-01 15:57:00,558 INFO L297 tatePredicateManager]: 72 out of 74 supporting invariants were superfluous and have been removed [2020-12-01 15:57:00,570 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:57:00,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:00,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:00,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:57:00,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:01,137 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:57:01,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:57:01,200 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2020-12-01 15:57:01,200 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15 Second operand 10 states. [2020-12-01 15:57:01,466 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15. Second operand 10 states. Result 84 states and 97 transitions. Complement of second has 9 states. [2020-12-01 15:57:01,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 7 stem states 0 non-accepting loop states 1 accepting loop states [2020-12-01 15:57:01,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:57:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2020-12-01 15:57:01,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:57:01,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:01,469 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:57:01,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:01,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:57:01,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:02,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:57:02,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:02,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:57:02,129 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.8 stem predicates 2 loop predicates [2020-12-01 15:57:02,129 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15 Second operand 10 states. [2020-12-01 15:57:02,453 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15. Second operand 10 states. Result 84 states and 97 transitions. Complement of second has 9 states. [2020-12-01 15:57:02,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 7 stem states 0 non-accepting loop states 1 accepting loop states [2020-12-01 15:57:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:57:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 40 transitions. [2020-12-01 15:57:02,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 40 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:57:02,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:02,456 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:57:02,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:02,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 24 conjunts are in the unsatisfiable core [2020-12-01 15:57:02,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:03,044 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:57:03,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:03,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:57:03,102 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2020-12-01 15:57:03,102 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15 Second operand 10 states. [2020-12-01 15:57:03,570 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 74 states and 83 transitions. cyclomatic complexity: 15. Second operand 10 states. Result 94 states and 111 transitions. Complement of second has 14 states. [2020-12-01 15:57:03,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:57:03,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:57:03,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 52 transitions. [2020-12-01 15:57:03,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 52 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:57:03,578 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 52 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:57:03,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:03,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 52 transitions. Stem has 52 letters. Loop has 4 letters. [2020-12-01 15:57:03,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:03,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 111 transitions. [2020-12-01 15:57:03,581 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-12-01 15:57:03,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 94 states and 111 transitions. [2020-12-01 15:57:03,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2020-12-01 15:57:03,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2020-12-01 15:57:03,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 94 states and 111 transitions. [2020-12-01 15:57:03,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:57:03,583 INFO L692 BuchiCegarLoop]: Abstraction has 94 states and 111 transitions. [2020-12-01 15:57:03,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states and 111 transitions. [2020-12-01 15:57:03,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 77. [2020-12-01 15:57:03,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-01 15:57:03,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 88 transitions. [2020-12-01 15:57:03,586 INFO L715 BuchiCegarLoop]: Abstraction has 77 states and 88 transitions. [2020-12-01 15:57:03,586 INFO L595 BuchiCegarLoop]: Abstraction has 77 states and 88 transitions. [2020-12-01 15:57:03,586 INFO L427 BuchiCegarLoop]: ======== Iteration 26============ [2020-12-01 15:57:03,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 88 transitions. [2020-12-01 15:57:03,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:57:03,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:03,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:03,588 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:03,588 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:57:03,589 INFO L794 eck$LassoCheckResult]: Stem: 9836#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 9827#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 9821#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9822#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9828#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9864#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9862#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9860#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9858#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9856#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9854#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 9852#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 9850#L33-3 assume !(main_~i~0 < 5); 9819#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 9820#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 9842#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9843#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9848#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9863#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9861#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9859#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9857#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9855#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9853#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 9851#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 9849#L37-3 assume !(main_~i~0 < 5); 9841#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 9818#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 9814#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9815#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9875#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9876#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9816#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9817#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9871#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9825#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 9826#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 9823#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 9824#L42-4 main_~nc_B~0 := 0; 9837#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9838#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9839#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9840#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9877#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9878#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9870#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9866#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 9865#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 9867#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 9829#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 9830#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9834#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 9831#L55-2 [2020-12-01 15:57:03,589 INFO L796 eck$LassoCheckResult]: Loop: 9831#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 9832#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 9831#L55-2 [2020-12-01 15:57:03,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash -446163379, now seen corresponding path program 11 times [2020-12-01 15:57:03,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:03,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893734552] [2020-12-01 15:57:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:03,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,615 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,639 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,648 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:03,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 15 times [2020-12-01 15:57:03,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:03,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296237755] [2020-12-01 15:57:03,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:03,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,653 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,655 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,656 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:03,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:03,657 INFO L82 PathProgramCache]: Analyzing trace with hash 733724976, now seen corresponding path program 9 times [2020-12-01 15:57:03,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:03,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618507821] [2020-12-01 15:57:03,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:03,744 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:03,754 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:19,257 WARN L197 SmtUtils]: Spent 15.38 s on a formula simplification. DAG size of input: 393 DAG size of output: 292 [2020-12-01 15:57:21,439 WARN L197 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 162 [2020-12-01 15:57:21,444 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:57:21,444 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:57:21,444 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:57:21,444 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:57:21,444 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:57:21,444 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:21,444 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:57:21,444 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:57:21,444 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration26_Lasso [2020-12-01 15:57:21,444 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:57:21,444 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:57:21,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:21,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,224 WARN L197 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 101 [2020-12-01 15:57:26,673 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 53 [2020-12-01 15:57:26,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:26,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:27,111 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-01 15:57:29,126 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-01 15:57:29,212 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:57:29,212 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 313 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:57:29,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,243 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 313 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,251 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 314 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 314 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,277 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,283 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 315 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 315 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,318 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 316 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 316 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,344 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,345 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 317 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 317 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,370 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,376 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 318 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 318 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 319 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 319 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,427 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,430 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 320 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 320 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,453 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,455 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,455 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,456 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 321 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 321 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,478 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,479 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,479 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,479 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,479 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 322 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 322 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,510 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,511 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 323 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 323 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,545 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,545 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,545 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,546 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 324 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 324 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,574 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,574 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,579 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 325 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 325 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,604 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,607 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,608 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,611 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 326 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 326 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,636 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,638 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,640 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,642 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 327 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 327 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,672 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,672 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,675 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 328 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 328 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,699 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,700 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:57:29,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,701 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:57:29,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,705 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 329 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 329 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,730 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:57:29,730 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,730 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:57:29,730 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:57:29,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 330 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 330 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,763 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,775 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 331 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 331 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,799 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,802 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,805 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 332 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 332 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,829 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,830 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:57:29,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,831 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:57:29,832 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 333 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 333 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,866 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:57:29,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,867 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:57:29,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,871 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 334 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 334 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,894 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 335 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 335 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,931 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,932 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,932 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,933 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,933 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 336 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 336 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:29,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:29,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:29,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:29,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:29,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:29,961 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:29,961 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:29,983 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 337 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 337 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:30,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:30,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:30,008 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:57:30,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:30,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:30,009 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:57:30,009 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:30,015 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 338 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 338 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:30,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:30,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:30,040 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:57:30,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:30,040 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:30,041 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:57:30,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:30,045 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 339 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 339 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:30,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:30,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:30,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:30,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:30,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:30,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:30,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:30,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 340 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 340 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:30,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:57:30,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:57:30,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:57:30,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:57:30,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:57:30,107 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:57:30,107 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:57:30,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:57:30,170 INFO L443 ModelExtractionUtils]: Simplification made 21 calls to the SMT solver. [2020-12-01 15:57:30,170 INFO L444 ModelExtractionUtils]: 3 out of 31 variables were initially zero. Simplification set additionally 25 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 341 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 341 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:30,172 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:57:30,174 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:57:30,174 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:57:30,174 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_14, ULTIMATE.start_main_~j~0) = 5*v_rep(select #length ULTIMATE.start_main_~#string_A~0.base)_14 - 4*ULTIMATE.start_main_~j~0 Supporting invariants [] [2020-12-01 15:57:31,233 INFO L297 tatePredicateManager]: 90 out of 92 supporting invariants were superfluous and have been removed [2020-12-01 15:57:31,246 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:57:31,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:31,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:31,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-01 15:57:31,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:57:31,892 WARN L261 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:57:31,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:57:31,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:57:31,960 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.8 stem predicates 2 loop predicates [2020-12-01 15:57:31,960 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 88 transitions. cyclomatic complexity: 17 Second operand 10 states. [2020-12-01 15:57:32,478 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 88 transitions. cyclomatic complexity: 17. Second operand 10 states. Result 109 states and 129 transitions. Complement of second has 13 states. [2020-12-01 15:57:32,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 8 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:57:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-01 15:57:32,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 53 transitions. [2020-12-01 15:57:32,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 53 transitions. Stem has 52 letters. Loop has 2 letters. [2020-12-01 15:57:32,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:32,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 53 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:57:32,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:32,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 53 transitions. Stem has 52 letters. Loop has 4 letters. [2020-12-01 15:57:32,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:57:32,483 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 129 transitions. [2020-12-01 15:57:32,484 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:57:32,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 109 states and 129 transitions. [2020-12-01 15:57:32,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2020-12-01 15:57:32,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 62 [2020-12-01 15:57:32,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 109 states and 129 transitions. [2020-12-01 15:57:32,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:57:32,486 INFO L692 BuchiCegarLoop]: Abstraction has 109 states and 129 transitions. [2020-12-01 15:57:32,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states and 129 transitions. [2020-12-01 15:57:32,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 95. [2020-12-01 15:57:32,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-12-01 15:57:32,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 110 transitions. [2020-12-01 15:57:32,490 INFO L715 BuchiCegarLoop]: Abstraction has 95 states and 110 transitions. [2020-12-01 15:57:32,490 INFO L595 BuchiCegarLoop]: Abstraction has 95 states and 110 transitions. [2020-12-01 15:57:32,490 INFO L427 BuchiCegarLoop]: ======== Iteration 27============ [2020-12-01 15:57:32,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 110 transitions. [2020-12-01 15:57:32,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:57:32,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:57:32,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:57:32,492 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:57:32,492 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:57:32,493 INFO L794 eck$LassoCheckResult]: Stem: 10604#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 10594#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 10595#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10596#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10589#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10590#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10632#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10630#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10628#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10626#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10624#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 10622#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 10620#L33-3 assume !(main_~i~0 < 5); 10587#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 10588#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 10613#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10614#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10618#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10633#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10631#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10629#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10627#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10625#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10623#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 10621#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 10619#L37-3 assume !(main_~i~0 < 5); 10609#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 10586#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 10582#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10583#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10639#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10640#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10584#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10585#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 10593#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 10637#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 10580#L42-4 main_~nc_B~0 := 0; 10581#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10616#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10617#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10647#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10648#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10643#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10644#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10636#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 10634#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 10635#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 10671#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 10667#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10668#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 10601#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10602#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 10612#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10649#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 10599#L55-2 [2020-12-01 15:57:32,493 INFO L796 eck$LassoCheckResult]: Loop: 10599#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 10600#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 10599#L55-2 [2020-12-01 15:57:32,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:32,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1046011024, now seen corresponding path program 10 times [2020-12-01 15:57:32,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:32,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565003828] [2020-12-01 15:57:32,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:32,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:32,605 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 16 times [2020-12-01 15:57:32,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:32,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477993516] [2020-12-01 15:57:32,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:57:32,612 INFO L82 PathProgramCache]: Analyzing trace with hash -194244205, now seen corresponding path program 11 times [2020-12-01 15:57:32,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:57:32,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720013725] [2020-12-01 15:57:32,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:57:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,647 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:57:32,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:57:32,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:57:48,111 WARN L197 SmtUtils]: Spent 15.30 s on a formula simplification. DAG size of input: 428 DAG size of output: 316 [2020-12-01 15:57:50,205 WARN L197 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 158 [2020-12-01 15:57:50,210 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:57:50,210 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:57:50,210 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:57:50,210 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:57:50,210 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:57:50,210 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:57:50,210 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:57:50,210 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:57:50,210 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration27_Lasso [2020-12-01 15:57:50,210 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:57:50,210 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:57:50,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:50,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:53,943 WARN L197 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 99 [2020-12-01 15:57:54,383 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2020-12-01 15:57:54,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:57:54,851 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 15:57:55,060 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-12-01 15:57:55,240 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:58:00,650 WARN L197 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2020-12-01 15:58:00,957 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:58:00,957 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 342 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:00,988 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:00,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:00,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:00,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:00,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:00,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:00,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 342 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,003 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 343 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 343 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,031 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,031 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,031 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,031 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,032 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,032 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,032 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 344 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 344 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 345 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 345 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,084 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,084 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,084 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,084 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,084 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,085 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 346 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 346 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,108 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,109 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,109 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,111 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 347 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 347 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,134 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,135 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 348 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 348 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,161 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 349 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 349 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,186 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 350 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 350 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,222 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,225 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,225 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,228 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 351 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 351 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,252 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,258 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 352 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 352 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,283 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,283 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,284 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 353 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 353 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,313 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,314 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,315 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,315 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,323 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 354 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 354 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,348 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,353 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 355 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 355 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,377 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,378 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,379 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,403 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 356 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:01,456 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 356 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,479 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 357 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:01,519 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 357 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,531 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 358 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:01,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,576 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,576 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,576 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,579 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,579 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 358 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 359 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:01,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,641 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,642 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 359 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,655 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 360 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 360 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,684 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,686 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:58:01,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,688 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:58:01,688 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 361 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 361 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,732 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,734 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,734 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,734 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,734 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,735 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,738 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 362 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 362 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,764 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2020-12-01 15:58:01,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,764 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,820 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2020-12-01 15:58:01,820 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 363 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 363 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,932 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,932 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,935 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 364 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 364 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:01,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:01,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:01,962 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 365 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 365 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:01,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:01,987 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:01,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:01,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:01,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:01,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:01,988 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:01,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 366 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 366 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:02,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:02,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:02,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:02,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:02,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:02,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:02,026 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:02,043 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:58:02,079 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2020-12-01 15:58:02,079 INFO L444 ModelExtractionUtils]: 10 out of 31 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 367 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 367 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:02,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:58:02,084 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:58:02,085 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:58:02,085 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_15, ULTIMATE.start_main_~i~0) = 5*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_15 - 2*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:58:02,714 INFO L297 tatePredicateManager]: 68 out of 70 supporting invariants were superfluous and have been removed [2020-12-01 15:58:02,726 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:58:02,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:02,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:58:02,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:03,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:03,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:58:03,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:03,322 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-12-01 15:58:03,322 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23 Second operand 8 states. [2020-12-01 15:58:03,691 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23. Second operand 8 states. Result 118 states and 141 transitions. Complement of second has 11 states. [2020-12-01 15:58:03,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:58:03,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:58:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2020-12-01 15:58:03,694 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:58:03,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:03,695 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:58:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:03,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:03,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:58:03,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:04,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:04,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:58:04,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:04,286 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.6 stem predicates 2 loop predicates [2020-12-01 15:58:04,286 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23 Second operand 8 states. [2020-12-01 15:58:04,608 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23. Second operand 8 states. Result 118 states and 141 transitions. Complement of second has 11 states. [2020-12-01 15:58:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:58:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:58:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2020-12-01 15:58:04,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:58:04,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:04,613 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:58:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:04,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:58:04,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:05,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-01 15:58:05,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:05,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:05,223 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.6 stem predicates 2 loop predicates [2020-12-01 15:58:05,224 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23 Second operand 8 states. [2020-12-01 15:58:05,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 110 transitions. cyclomatic complexity: 23. Second operand 8 states. Result 119 states and 145 transitions. Complement of second has 10 states. [2020-12-01 15:58:05,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 6 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:58:05,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-01 15:58:05,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 44 transitions. [2020-12-01 15:58:05,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:58:05,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:05,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 56 letters. Loop has 2 letters. [2020-12-01 15:58:05,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:05,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 44 transitions. Stem has 54 letters. Loop has 4 letters. [2020-12-01 15:58:05,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:05,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 145 transitions. [2020-12-01 15:58:05,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-12-01 15:58:05,559 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 113 states and 135 transitions. [2020-12-01 15:58:05,560 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2020-12-01 15:58:05,560 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2020-12-01 15:58:05,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 113 states and 135 transitions. [2020-12-01 15:58:05,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:58:05,560 INFO L692 BuchiCegarLoop]: Abstraction has 113 states and 135 transitions. [2020-12-01 15:58:05,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states and 135 transitions. [2020-12-01 15:58:05,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 94. [2020-12-01 15:58:05,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-12-01 15:58:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2020-12-01 15:58:05,564 INFO L715 BuchiCegarLoop]: Abstraction has 94 states and 108 transitions. [2020-12-01 15:58:05,564 INFO L595 BuchiCegarLoop]: Abstraction has 94 states and 108 transitions. [2020-12-01 15:58:05,564 INFO L427 BuchiCegarLoop]: ======== Iteration 28============ [2020-12-01 15:58:05,564 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 108 transitions. [2020-12-01 15:58:05,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:58:05,565 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:58:05,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:58:05,566 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:05,566 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:58:05,567 INFO L794 eck$LassoCheckResult]: Stem: 11939#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 11931#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 11924#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11925#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11930#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11967#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11965#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11963#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11961#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11959#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11957#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 11955#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11953#L33-3 assume !(main_~i~0 < 5); 11922#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 11923#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 11946#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11947#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11952#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11968#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11966#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11964#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11962#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11960#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11958#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 11956#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 11954#L37-3 assume !(main_~i~0 < 5); 11944#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 11917#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 11918#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11919#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11977#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11978#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 11920#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11921#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12000#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 11999#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 11998#L42-4 main_~nc_B~0 := 0; 11997#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11996#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11995#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11994#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11993#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11992#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11991#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11990#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 11989#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 11988#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 11987#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 11986#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11985#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11936#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11937#L55 [2020-12-01 15:58:05,567 INFO L796 eck$LassoCheckResult]: Loop: 11937#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 11945#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 11937#L55 [2020-12-01 15:58:05,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:05,567 INFO L82 PathProgramCache]: Analyzing trace with hash 536132969, now seen corresponding path program 12 times [2020-12-01 15:58:05,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:05,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135104328] [2020-12-01 15:58:05,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:05,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:05,629 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 3 times [2020-12-01 15:58:05,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:05,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181268650] [2020-12-01 15:58:05,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:05,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:05,636 INFO L82 PathProgramCache]: Analyzing trace with hash -172289564, now seen corresponding path program 13 times [2020-12-01 15:58:05,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:05,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825335422] [2020-12-01 15:58:05,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,657 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:05,680 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:05,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:17,175 WARN L197 SmtUtils]: Spent 11.34 s on a formula simplification. DAG size of input: 397 DAG size of output: 294 [2020-12-01 15:58:19,264 WARN L197 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 168 [2020-12-01 15:58:19,269 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:58:19,269 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:58:19,269 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:58:19,269 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:58:19,269 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:58:19,269 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:19,269 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:58:19,269 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:58:19,269 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration28_Lasso [2020-12-01 15:58:19,270 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:58:19,270 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:58:19,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:19,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:22,727 WARN L197 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 101 [2020-12-01 15:58:23,175 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2020-12-01 15:58:23,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:23,454 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-01 15:58:23,943 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2020-12-01 15:58:25,891 WARN L197 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-01 15:58:26,063 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-01 15:58:26,523 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:58:26,524 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 368 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 368 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,526 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,527 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,529 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:26,529 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:26,532 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 369 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 369 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,557 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,560 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 370 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 370 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,585 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,585 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,586 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:26,586 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:26,595 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 371 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 371 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,618 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,620 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,627 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 372 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 372 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,650 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,651 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 373 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 373 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,677 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,677 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,678 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,678 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,687 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 374 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 374 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,713 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 375 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 375 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,737 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,739 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 376 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 376 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,762 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,762 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,763 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,763 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,763 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,764 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 377 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 377 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,788 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,789 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,790 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,790 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 378 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 378 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,818 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,820 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:26,821 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:26,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 379 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 379 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,847 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,848 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:58:26,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,849 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:58:26,849 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:26,852 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 380 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 380 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,875 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:26,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:26,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:26,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:26,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:26,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 381 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 381 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:26,901 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:26,903 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:26,903 INFO L203 nArgumentSynthesizer]: 12 stem disjuncts [2020-12-01 15:58:26,903 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-12-01 15:58:26,904 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:26,956 INFO L401 nArgumentSynthesizer]: We have 60 Motzkin's Theorem applications. [2020-12-01 15:58:26,956 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-12-01 15:58:27,035 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 382 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 382 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,060 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,061 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:58:27,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,063 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:58:27,063 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 383 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 383 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,108 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 384 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 384 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,150 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,154 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,154 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,157 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 385 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 385 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,185 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 386 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 386 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:27,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:27,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:27,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 387 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 387 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,243 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,247 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 388 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 388 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 389 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 389 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,306 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,310 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 390 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 390 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,334 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:27,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,334 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,335 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:27,335 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:27,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 391 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 391 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,360 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,360 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,361 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,361 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,362 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,362 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 392 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 392 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,389 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:58:27,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,390 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:58:27,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 393 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 393 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,421 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,423 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,423 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,426 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 394 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 394 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,449 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,454 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,478 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 395 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 395 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,513 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:58:27,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,514 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:58:27,514 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 396 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 396 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 397 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 397 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:58:27,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:27,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:27,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:27,576 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:27,587 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:58:27,588 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:58:27,614 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:58:27,729 INFO L443 ModelExtractionUtils]: Simplification made 34 calls to the SMT solver. [2020-12-01 15:58:27,729 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 27 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 398 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:58:27,736 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 398 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:27,760 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:58:27,760 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:58:27,760 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_16) = -2*ULTIMATE.start_main_~i~0 + 3*v_rep(select #length ULTIMATE.start_main_~#string_B~0.base)_16 Supporting invariants [] [2020-12-01 15:58:28,427 INFO L297 tatePredicateManager]: 70 out of 73 supporting invariants were superfluous and have been removed [2020-12-01 15:58:28,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 15:58:28,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:28,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 15:58:28,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:29,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-01 15:58:29,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:29,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:29,180 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:58:29,180 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 108 transitions. cyclomatic complexity: 22 Second operand 9 states. [2020-12-01 15:58:29,589 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 108 transitions. cyclomatic complexity: 22. Second operand 9 states. Result 109 states and 128 transitions. Complement of second has 12 states. [2020-12-01 15:58:29,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:58:29,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:58:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 38 transitions. [2020-12-01 15:58:29,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 51 letters. Loop has 2 letters. [2020-12-01 15:58:29,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:29,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 53 letters. Loop has 2 letters. [2020-12-01 15:58:29,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:29,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 38 transitions. Stem has 51 letters. Loop has 4 letters. [2020-12-01 15:58:29,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:29,593 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 128 transitions. [2020-12-01 15:58:29,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:58:29,595 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 107 states and 126 transitions. [2020-12-01 15:58:29,596 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2020-12-01 15:58:29,596 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2020-12-01 15:58:29,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 126 transitions. [2020-12-01 15:58:29,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:58:29,596 INFO L692 BuchiCegarLoop]: Abstraction has 107 states and 126 transitions. [2020-12-01 15:58:29,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 126 transitions. [2020-12-01 15:58:29,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 97. [2020-12-01 15:58:29,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-12-01 15:58:29,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2020-12-01 15:58:29,600 INFO L715 BuchiCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-12-01 15:58:29,600 INFO L595 BuchiCegarLoop]: Abstraction has 97 states and 112 transitions. [2020-12-01 15:58:29,600 INFO L427 BuchiCegarLoop]: ======== Iteration 29============ [2020-12-01 15:58:29,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 97 states and 112 transitions. [2020-12-01 15:58:29,601 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:58:29,601 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:58:29,601 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:58:29,602 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:58:29,602 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:58:29,602 INFO L794 eck$LassoCheckResult]: Stem: 12641#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 12631#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 12632#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12633#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12627#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12628#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12664#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12662#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12660#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12658#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12656#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 12654#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 12652#L33-3 assume !(main_~i~0 < 5); 12625#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 12626#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 12647#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12648#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12651#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12666#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12665#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12663#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12661#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12659#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12657#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 12655#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 12653#L37-3 assume !(main_~i~0 < 5); 12645#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 12620#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 12621#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12622#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12630#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12674#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12623#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12624#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 12669#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 12671#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 12713#L42-4 main_~nc_B~0 := 0; 12712#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12711#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12710#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12708#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12707#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12704#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12702#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12699#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 12698#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 12697#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 12695#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 12680#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12638#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 12685#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12637#L55 [2020-12-01 15:58:29,602 INFO L796 eck$LassoCheckResult]: Loop: 12637#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 12636#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 12637#L55 [2020-12-01 15:58:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:29,602 INFO L82 PathProgramCache]: Analyzing trace with hash 536132907, now seen corresponding path program 5 times [2020-12-01 15:58:29,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:29,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4963524] [2020-12-01 15:58:29,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,625 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,655 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:29,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:29,656 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 4 times [2020-12-01 15:58:29,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:29,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121647568] [2020-12-01 15:58:29,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,662 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash -172349146, now seen corresponding path program 12 times [2020-12-01 15:58:29,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:29,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793853444] [2020-12-01 15:58:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,691 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:29,719 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:29,727 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:52,356 WARN L197 SmtUtils]: Spent 22.49 s on a formula simplification. DAG size of input: 395 DAG size of output: 290 [2020-12-01 15:58:54,552 WARN L197 SmtUtils]: Spent 2.16 s on a formula simplification that was a NOOP. DAG size: 163 [2020-12-01 15:58:54,558 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:58:54,558 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:58:54,558 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:58:54,558 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:58:54,558 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:58:54,558 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:54,558 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:58:54,558 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:58:54,558 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration29_Lasso [2020-12-01 15:58:54,558 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:58:54,558 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:58:54,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:54,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:58,710 WARN L197 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 106 [2020-12-01 15:58:59,409 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-01 15:58:59,831 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-01 15:59:00,217 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 15:59:01,641 WARN L197 SmtUtils]: Spent 756.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 15:59:01,785 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-12-01 15:59:01,804 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:59:01,805 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 399 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 399 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,828 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,829 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,830 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:01,830 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:01,833 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 400 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 400 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,858 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:01,860 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:01,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:01,864 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 401 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 401 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:01,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:01,894 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 402 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 402 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:01,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:01,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:01,923 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 403 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 403 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:01,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:01,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:01,951 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 404 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 404 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:01,975 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:01,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:01,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:01,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:01,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:01,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:01,977 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:01,977 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:01,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 405 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 405 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 406 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 406 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,036 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 407 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 407 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,056 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 408 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 408 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,080 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,089 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 409 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 409 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,111 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,113 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,113 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,114 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 410 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 410 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,138 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,139 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,140 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 411 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 411 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,166 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,167 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,167 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 412 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 412 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,204 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 413 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 413 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,235 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 414 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 414 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,259 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 415 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 415 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,285 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,285 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,292 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 416 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 416 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,316 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,317 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,317 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:02,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,317 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:02,317 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:02,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 417 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 417 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,352 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:59:02,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,354 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:59:02,354 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 418 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 418 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,388 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,389 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-12-01 15:59:02,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,390 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-12-01 15:59:02,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 419 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 419 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,418 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,419 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,421 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,421 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 420 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 420 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,451 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,453 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,453 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,459 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 421 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 421 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,485 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,485 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,485 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,487 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,487 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 422 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 422 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,516 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,518 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,523 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 423 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 423 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:02,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:02,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:02,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:02,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:02,562 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:02,562 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:02,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:59:02,630 INFO L443 ModelExtractionUtils]: Simplification made 18 calls to the SMT solver. [2020-12-01 15:59:02,630 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 424 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 424 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:02,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:59:02,636 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:59:02,637 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:59:02,637 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~i~0 + 2*ULTIMATE.start_main_~j~0 + 3 Supporting invariants [] [2020-12-01 15:59:03,248 INFO L297 tatePredicateManager]: 72 out of 75 supporting invariants were superfluous and have been removed [2020-12-01 15:59:03,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:03,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 26 conjunts are in the unsatisfiable core [2020-12-01 15:59:03,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:04,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:04,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 15:59:04,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:59:04,495 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.12 stem predicates 2 loop predicates [2020-12-01 15:59:04,496 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 97 states and 112 transitions. cyclomatic complexity: 24 Second operand 14 states. [2020-12-01 15:59:05,322 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 97 states and 112 transitions. cyclomatic complexity: 24. Second operand 14 states. Result 131 states and 159 transitions. Complement of second has 19 states. [2020-12-01 15:59:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 16 states 12 stem states 2 non-accepting loop states 2 accepting loop states [2020-12-01 15:59:05,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:59:05,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 55 transitions. [2020-12-01 15:59:05,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 55 transitions. Stem has 51 letters. Loop has 2 letters. [2020-12-01 15:59:05,326 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:05,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 55 transitions. Stem has 53 letters. Loop has 2 letters. [2020-12-01 15:59:05,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:05,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 16 states and 55 transitions. Stem has 51 letters. Loop has 4 letters. [2020-12-01 15:59:05,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:05,327 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 131 states and 159 transitions. [2020-12-01 15:59:05,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:59:05,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 131 states to 108 states and 126 transitions. [2020-12-01 15:59:05,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57 [2020-12-01 15:59:05,331 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2020-12-01 15:59:05,331 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 126 transitions. [2020-12-01 15:59:05,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:59:05,331 INFO L692 BuchiCegarLoop]: Abstraction has 108 states and 126 transitions. [2020-12-01 15:59:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 126 transitions. [2020-12-01 15:59:05,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 99. [2020-12-01 15:59:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-12-01 15:59:05,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 114 transitions. [2020-12-01 15:59:05,335 INFO L715 BuchiCegarLoop]: Abstraction has 99 states and 114 transitions. [2020-12-01 15:59:05,335 INFO L595 BuchiCegarLoop]: Abstraction has 99 states and 114 transitions. [2020-12-01 15:59:05,335 INFO L427 BuchiCegarLoop]: ======== Iteration 30============ [2020-12-01 15:59:05,335 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 114 transitions. [2020-12-01 15:59:05,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:59:05,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:59:05,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:59:05,338 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:59:05,338 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:59:05,338 INFO L794 eck$LassoCheckResult]: Stem: 13395#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 13386#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 13387#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13388#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13381#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13382#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13422#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13420#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13418#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13416#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13414#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13412#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13410#L33-3 assume !(main_~i~0 < 5); 13379#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 13380#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 13404#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13405#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13409#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13424#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13423#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13421#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13419#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13417#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13415#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13413#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13411#L37-3 assume !(main_~i~0 < 5); 13400#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 13374#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 13375#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13376#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13385#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13435#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13377#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13378#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13442#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13441#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 13440#L42-4 main_~nc_B~0 := 0; 13439#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13438#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13398#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13399#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13466#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13465#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13464#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13463#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13430#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13426#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13425#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13406#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 13407#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 13446#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13393#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13394#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13392#L55 [2020-12-01 15:59:05,338 INFO L796 eck$LassoCheckResult]: Loop: 13392#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13391#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13392#L55 [2020-12-01 15:59:05,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:05,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1212574800, now seen corresponding path program 6 times [2020-12-01 15:59:05,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:05,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825859197] [2020-12-01 15:59:05,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 9 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-01 15:59:05,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825859197] [2020-12-01 15:59:05,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482185078] [2020-12-01 15:59:05,671 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 425 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 425 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:59:05,832 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2020-12-01 15:59:05,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:59:05,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-01 15:59:05,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:05,908 INFO L348 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2020-12-01 15:59:05,909 INFO L382 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 1 case distinctions, treesize of input 9 treesize of output 11 [2020-12-01 15:59:05,912 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-12-01 15:59:05,930 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-12-01 15:59:05,932 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2020-12-01 15:59:05,933 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:14 [2020-12-01 15:59:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-12-01 15:59:06,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:59:06,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12] total 19 [2020-12-01 15:59:06,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989748286] [2020-12-01 15:59:06,580 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 15:59:06,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:06,580 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 5 times [2020-12-01 15:59:06,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:06,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478010648] [2020-12-01 15:59:06,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:06,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:06,584 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:06,586 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:06,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:59:06,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-01 15:59:06,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:59:06,749 INFO L87 Difference]: Start difference. First operand 99 states and 114 transitions. cyclomatic complexity: 24 Second operand 19 states. [2020-12-01 15:59:07,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:59:07,795 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2020-12-01 15:59:07,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-01 15:59:07,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 121 transitions. [2020-12-01 15:59:07,799 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:59:07,801 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 92 states and 104 transitions. [2020-12-01 15:59:07,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-12-01 15:59:07,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 68 [2020-12-01 15:59:07,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 104 transitions. [2020-12-01 15:59:07,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:59:07,802 INFO L692 BuchiCegarLoop]: Abstraction has 92 states and 104 transitions. [2020-12-01 15:59:07,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 104 transitions. [2020-12-01 15:59:07,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 76. [2020-12-01 15:59:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-12-01 15:59:07,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 83 transitions. [2020-12-01 15:59:07,804 INFO L715 BuchiCegarLoop]: Abstraction has 76 states and 83 transitions. [2020-12-01 15:59:07,805 INFO L595 BuchiCegarLoop]: Abstraction has 76 states and 83 transitions. [2020-12-01 15:59:07,805 INFO L427 BuchiCegarLoop]: ======== Iteration 31============ [2020-12-01 15:59:07,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76 states and 83 transitions. [2020-12-01 15:59:07,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 15:59:07,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:59:07,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:59:07,807 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:59:07,807 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:59:07,807 INFO L794 eck$LassoCheckResult]: Stem: 13790#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 13782#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 13783#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13784#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13779#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13780#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13812#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13810#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13808#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13806#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13804#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 13802#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 13800#L33-3 assume !(main_~i~0 < 5); 13777#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 13778#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 13797#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13798#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13794#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13795#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13811#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13809#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13807#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13805#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13803#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 13801#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 13799#L37-3 assume !(main_~i~0 < 5); 13792#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 13776#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 13772#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13773#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13774#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13775#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13824#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13823#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13821#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13822#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 13844#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 13843#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 13842#L42-4 main_~nc_B~0 := 0; 13841#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13840#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13839#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13831#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13832#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13827#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13828#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13819#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 13820#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 13813#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 13814#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 13837#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13793#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13789#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13788#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 13834#L55-2 [2020-12-01 15:59:07,807 INFO L796 eck$LassoCheckResult]: Loop: 13834#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 13833#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 13834#L55-2 [2020-12-01 15:59:07,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:07,808 INFO L82 PathProgramCache]: Analyzing trace with hash 733724978, now seen corresponding path program 14 times [2020-12-01 15:59:07,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:07,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114769983] [2020-12-01 15:59:07,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,835 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,862 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:07,870 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 17 times [2020-12-01 15:59:07,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:07,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039868175] [2020-12-01 15:59:07,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:07,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,877 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash 735069909, now seen corresponding path program 13 times [2020-12-01 15:59:07,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:07,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757560276] [2020-12-01 15:59:07,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,902 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:07,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:07,933 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:31,836 WARN L197 SmtUtils]: Spent 23.75 s on a formula simplification. DAG size of input: 417 DAG size of output: 307 [2020-12-01 15:59:37,122 WARN L197 SmtUtils]: Spent 5.23 s on a formula simplification that was a NOOP. DAG size: 173 [2020-12-01 15:59:37,128 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:59:37,128 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:59:37,128 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:59:37,128 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:59:37,128 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:59:37,128 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:37,128 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:59:37,129 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:59:37,129 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration31_Lasso [2020-12-01 15:59:37,129 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:59:37,129 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:59:37,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:37,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,201 WARN L197 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 101 [2020-12-01 15:59:43,591 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-01 15:59:43,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:59:43,993 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-01 15:59:44,226 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-01 15:59:44,562 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2020-12-01 15:59:48,247 WARN L197 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2020-12-01 15:59:48,365 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 15:59:48,695 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:59:48,695 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 426 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:59:48,710 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,712 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,712 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:48,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,713 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:48,713 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 426 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,727 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 427 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:59:48,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,774 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,776 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:48,776 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 427 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,791 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 428 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:59:48,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:48,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,836 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:48,836 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 428 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,847 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 429 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-12-01 15:59:48,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:48,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,892 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,893 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:48,893 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 429 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,927 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 430 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 430 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,951 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,952 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:48,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:48,964 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 431 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 431 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:48,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:48,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:48,991 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:48,991 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:48,991 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:48,991 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:48,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:48,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:48,993 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 432 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 432 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,017 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:49,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,018 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,019 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:49,019 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:49,020 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 433 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 433 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:49,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,046 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:49,046 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:49,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 434 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 434 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:49,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:49,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:49,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 435 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 435 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,107 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:49,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:49,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:49,127 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 436 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 436 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,154 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,158 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 437 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 437 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,183 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,184 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,184 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,184 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,185 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,185 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 438 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 438 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:59:49,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:59:49,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:59:49,216 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 439 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 439 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,241 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,248 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 440 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 440 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,274 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,275 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,275 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,278 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 441 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 441 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,309 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 442 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 442 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,336 INFO L203 nArgumentSynthesizer]: 36 stem disjuncts [2020-12-01 15:59:49,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,370 INFO L401 nArgumentSynthesizer]: We have 76 Motzkin's Theorem applications. [2020-12-01 15:59:49,370 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 443 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 443 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 15:59:49,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:59:49,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:59:49,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:59:49,452 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:59:49,460 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 15:59:49,460 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 15:59:49,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:59:49,497 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-12-01 15:59:49,497 INFO L444 ModelExtractionUtils]: 22 out of 31 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 444 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 444 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:59:49,500 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:59:49,504 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 15:59:49,505 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:59:49,505 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~i~0) = 7*ULTIMATE.start_main_~nc_A~0 - 8*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 15:59:50,088 INFO L297 tatePredicateManager]: 54 out of 56 supporting invariants were superfluous and have been removed [2020-12-01 15:59:50,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:50,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 15:59:50,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:50,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:59:50,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:59:50,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:59:50,877 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11 Second operand 9 states. [2020-12-01 15:59:51,365 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11. Second operand 9 states. Result 90 states and 103 transitions. Complement of second has 12 states. [2020-12-01 15:59:51,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:59:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:59:51,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 44 transitions. [2020-12-01 15:59:51,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:59:51,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:51,370 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:59:51,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:51,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:51,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 15:59:51,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:52,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:52,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:59:52,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:59:52,195 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:59:52,195 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11 Second operand 9 states. [2020-12-01 15:59:52,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11. Second operand 9 states. Result 90 states and 103 transitions. Complement of second has 12 states. [2020-12-01 15:59:52,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:59:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:59:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 44 transitions. [2020-12-01 15:59:52,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 44 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:59:52,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:52,673 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-12-01 15:59:52,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:52,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-01 15:59:52,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:59:53,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:59:53,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:59:53,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:59:53,467 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.7 stem predicates 2 loop predicates [2020-12-01 15:59:53,467 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11 Second operand 9 states. [2020-12-01 15:59:54,009 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76 states and 83 transitions. cyclomatic complexity: 11. Second operand 9 states. Result 94 states and 109 transitions. Complement of second has 11 states. [2020-12-01 15:59:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 7 stem states 1 non-accepting loop states 2 accepting loop states [2020-12-01 15:59:54,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-01 15:59:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 46 transitions. [2020-12-01 15:59:54,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 46 transitions. Stem has 54 letters. Loop has 2 letters. [2020-12-01 15:59:54,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:54,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 46 transitions. Stem has 56 letters. Loop has 2 letters. [2020-12-01 15:59:54,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:54,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 46 transitions. Stem has 54 letters. Loop has 4 letters. [2020-12-01 15:59:54,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:59:54,015 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 94 states and 109 transitions. [2020-12-01 15:59:54,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2020-12-01 15:59:54,017 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 94 states to 90 states and 103 transitions. [2020-12-01 15:59:54,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2020-12-01 15:59:54,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2020-12-01 15:59:54,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 103 transitions. [2020-12-01 15:59:54,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 15:59:54,018 INFO L692 BuchiCegarLoop]: Abstraction has 90 states and 103 transitions. [2020-12-01 15:59:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 103 transitions. [2020-12-01 15:59:54,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 77. [2020-12-01 15:59:54,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-12-01 15:59:54,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 85 transitions. [2020-12-01 15:59:54,020 INFO L715 BuchiCegarLoop]: Abstraction has 77 states and 85 transitions. [2020-12-01 15:59:54,020 INFO L595 BuchiCegarLoop]: Abstraction has 77 states and 85 transitions. [2020-12-01 15:59:54,020 INFO L427 BuchiCegarLoop]: ======== Iteration 32============ [2020-12-01 15:59:54,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 85 transitions. [2020-12-01 15:59:54,021 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-12-01 15:59:54,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:59:54,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:59:54,022 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 5, 5, 5, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:59:54,022 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 15:59:54,022 INFO L794 eck$LassoCheckResult]: Stem: 14983#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 14974#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 14975#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 14973#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 14967#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 14968#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15006#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15004#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15002#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15000#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 14998#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 14996#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 14994#L33-3 assume !(main_~i~0 < 5); 14965#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 14966#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 14992#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 14993#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14988#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 14989#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15007#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15005#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15003#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15001#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14999#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 14997#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 14995#L37-3 assume !(main_~i~0 < 5); 14986#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 14960#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 14961#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 14962#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15028#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 14971#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 14972#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15029#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 14963#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 14964#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15012#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15013#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 14958#L42-4 main_~nc_B~0 := 0; 14959#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 14990#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 14991#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15024#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15025#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15020#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15021#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15015#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15016#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15008#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 15009#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 15031#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 14981#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 14980#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 14982#L55 [2020-12-01 15:59:54,022 INFO L796 eck$LassoCheckResult]: Loop: 14982#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 14987#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 14982#L55 [2020-12-01 15:59:54,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:54,023 INFO L82 PathProgramCache]: Analyzing trace with hash -946162842, now seen corresponding path program 7 times [2020-12-01 15:59:54,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:54,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137292914] [2020-12-01 15:59:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash 3708, now seen corresponding path program 6 times [2020-12-01 15:59:54,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:54,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104243413] [2020-12-01 15:59:54,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,100 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:59:54,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:59:54,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1270578337, now seen corresponding path program 14 times [2020-12-01 15:59:54,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:59:54,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436388966] [2020-12-01 15:59:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:59:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:59:54,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:59:54,170 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:00:29,052 WARN L197 SmtUtils]: Spent 34.71 s on a formula simplification. DAG size of input: 407 DAG size of output: 303 [2020-12-01 16:00:34,009 WARN L197 SmtUtils]: Spent 4.90 s on a formula simplification that was a NOOP. DAG size: 180 [2020-12-01 16:00:34,015 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 16:00:34,015 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 16:00:34,016 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 16:00:34,016 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 16:00:34,016 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 16:00:34,016 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:34,016 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 16:00:34,016 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 16:00:34,016 INFO L133 ssoRankerPreferences]: Filename of dumped script: string-1.i_Iteration32_Lasso [2020-12-01 16:00:34,016 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 16:00:34,016 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 16:00:34,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,066 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,076 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,144 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:34,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:43,306 WARN L197 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 105 [2020-12-01 16:00:43,991 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-01 16:00:43,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:44,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:44,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 16:00:44,405 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-12-01 16:00:45,886 WARN L197 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 16:00:46,023 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-01 16:00:46,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 16:00:46,065 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 445 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 445 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,076 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,079 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 446 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 446 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,105 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,105 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 447 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 447 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,132 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,133 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,136 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 448 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 448 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,159 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,160 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,160 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,161 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,162 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 449 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 449 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,185 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,185 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,186 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,186 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,187 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 450 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 450 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,212 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,213 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 451 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 451 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,248 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 452 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 452 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,273 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,274 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 453 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 453 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,298 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,299 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,299 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,299 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,299 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 454 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 454 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,327 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,328 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,328 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,328 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,332 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 455 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 455 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,355 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,356 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,357 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 456 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 456 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,381 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,382 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 457 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 457 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,410 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 458 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 458 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,434 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 16:00:46,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,435 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,435 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 16:00:46,435 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 16:00:46,436 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 459 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 459 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,463 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 460 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 460 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-12-01 16:00:46,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 16:00:46,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 16:00:46,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 16:00:46,493 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 16:00:46,502 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-12-01 16:00:46,502 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-12-01 16:00:46,521 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 16:00:46,578 INFO L443 ModelExtractionUtils]: Simplification made 20 calls to the SMT solver. [2020-12-01 16:00:46,579 INFO L444 ModelExtractionUtils]: 1 out of 31 variables were initially zero. Simplification set additionally 26 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 461 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 461 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 16:00:46,581 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 16:00:46,582 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-12-01 16:00:46,583 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 16:00:46,583 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~nc_A~0, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~nc_A~0 + 1*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-12-01 16:00:47,445 INFO L297 tatePredicateManager]: 42 out of 42 supporting invariants were superfluous and have been removed [2020-12-01 16:00:47,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:00:47,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 16:00:47,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:00:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:00:47,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-01 16:00:47,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:00:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:00:47,837 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-12-01 16:00:47,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 85 transitions. cyclomatic complexity: 12 Second operand 3 states. [2020-12-01 16:00:47,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 85 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 103 states and 121 transitions. Complement of second has 6 states. [2020-12-01 16:00:47,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-12-01 16:00:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-12-01 16:00:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2020-12-01 16:00:47,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 53 letters. Loop has 2 letters. [2020-12-01 16:00:47,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:47,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 55 letters. Loop has 2 letters. [2020-12-01 16:00:47,909 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:47,909 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 53 letters. Loop has 4 letters. [2020-12-01 16:00:47,910 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 16:00:47,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 121 transitions. [2020-12-01 16:00:47,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:00:47,912 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 65 states and 71 transitions. [2020-12-01 16:00:47,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 47 [2020-12-01 16:00:47,912 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2020-12-01 16:00:47,913 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 71 transitions. [2020-12-01 16:00:47,913 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-12-01 16:00:47,913 INFO L692 BuchiCegarLoop]: Abstraction has 65 states and 71 transitions. [2020-12-01 16:00:47,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 71 transitions. [2020-12-01 16:00:47,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2020-12-01 16:00:47,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-12-01 16:00:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 68 transitions. [2020-12-01 16:00:47,915 INFO L715 BuchiCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-12-01 16:00:47,916 INFO L595 BuchiCegarLoop]: Abstraction has 62 states and 68 transitions. [2020-12-01 16:00:47,916 INFO L427 BuchiCegarLoop]: ======== Iteration 33============ [2020-12-01 16:00:47,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 68 transitions. [2020-12-01 16:00:47,917 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-12-01 16:00:47,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 16:00:47,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 16:00:47,918 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:00:47,918 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-12-01 16:00:47,918 INFO L794 eck$LassoCheckResult]: Stem: 15513#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(11); 15506#L-1 havoc main_#res;havoc main_#t~nondet4, main_#t~post3, main_#t~mem5, main_#t~nondet7, main_#t~post6, main_#t~mem8, main_#t~post10, main_#t~mem9, main_#t~post12, main_#t~mem11, main_#t~mem13, main_#t~mem14, main_#t~post15, main_#t~post16, main_~#string_A~0.base, main_~#string_A~0.offset, main_~#string_B~0.base, main_~#string_B~0.offset, main_~i~0, main_~j~0, main_~nc_A~0, main_~nc_B~0, main_~found~0;call main_~#string_A~0.base, main_~#string_A~0.offset := #Ultimate.allocOnStack(5);call main_~#string_B~0.base, main_~#string_B~0.offset := #Ultimate.allocOnStack(5);havoc main_~i~0;havoc main_~j~0;havoc main_~nc_A~0;havoc main_~nc_B~0;main_~found~0 := 0;main_~i~0 := 0; 15503#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15504#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15507#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15543#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15540#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15537#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15534#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15531#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15528#L33-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet4, main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);havoc main_#t~nondet4; 15525#L33-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 15523#L33-3 assume !(main_~i~0 < 5); 15501#L33-4 call main_#t~mem5 := read~int(main_~#string_A~0.base, 4 + main_~#string_A~0.offset, 1); 15502#L35 assume !!(0 == main_#t~mem5);havoc main_#t~mem5;main_~i~0 := 0; 15518#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15519#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15521#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15542#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15539#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15536#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15533#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15530#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15527#L37-3 assume !!(main_~i~0 < 5);call write~int(main_#t~nondet7, main_~#string_B~0.base, main_~#string_B~0.offset + main_~i~0, 1);havoc main_#t~nondet7; 15524#L37-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 15522#L37-3 assume !(main_~i~0 < 5); 15515#L37-4 call main_#t~mem8 := read~int(main_~#string_B~0.base, 4 + main_~#string_B~0.offset, 1); 15496#L39 assume !!(0 == main_#t~mem8);havoc main_#t~mem8;main_~nc_A~0 := 0; 15497#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15498#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15499#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15500#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15551#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15550#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15549#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15548#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15547#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15546#L42-1 assume !!(0 != main_#t~mem9);havoc main_#t~mem9;main_#t~post10 := main_~nc_A~0;main_~nc_A~0 := 1 + main_#t~post10;havoc main_#t~post10; 15545#L42-3 call main_#t~mem9 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~nc_A~0, 1); 15505#L42-1 assume !(0 != main_#t~mem9);havoc main_#t~mem9; 15494#L42-4 main_~nc_B~0 := 0; 15495#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15514#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15520#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15544#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15541#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15538#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15535#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15532#L46-1 assume !!(0 != main_#t~mem11);havoc main_#t~mem11;main_#t~post12 := main_~nc_B~0;main_~nc_B~0 := 1 + main_#t~post12;havoc main_#t~post12; 15529#L46-3 call main_#t~mem11 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~nc_B~0, 1); 15526#L46-1 assume !(0 != main_#t~mem11);havoc main_#t~mem11; 15508#L46-4 assume !!(main_~nc_B~0 >= main_~nc_A~0);main_~j~0 := 0;main_~i~0 := main_~j~0; 15509#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 15510#L55 assume !(main_#t~mem13 == main_#t~mem14);havoc main_#t~mem14;havoc main_#t~mem13;main_~i~0 := 1 + (main_~i~0 - main_~j~0);main_~j~0 := 0; 15554#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 15555#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 15517#L55-2 [2020-12-01 16:00:47,918 INFO L796 eck$LassoCheckResult]: Loop: 15517#L55-2 assume !!(main_~i~0 < main_~nc_A~0 && main_~j~0 < main_~nc_B~0);call main_#t~mem13 := read~int(main_~#string_A~0.base, main_~#string_A~0.offset + main_~i~0, 1);call main_#t~mem14 := read~int(main_~#string_B~0.base, main_~#string_B~0.offset + main_~j~0, 1); 15516#L55 assume main_#t~mem13 == main_#t~mem14;havoc main_#t~mem14;havoc main_#t~mem13;main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;main_#t~post16 := main_~j~0;main_~j~0 := 1 + main_#t~post16;havoc main_#t~post16; 15517#L55-2 [2020-12-01 16:00:47,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:47,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1780163307, now seen corresponding path program 15 times [2020-12-01 16:00:47,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:00:47,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461272651] [2020-12-01 16:00:47,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:00:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:00:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 20 proven. 30 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 16:00:48,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461272651] [2020-12-01 16:00:48,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125635069] [2020-12-01 16:00:48,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_05a7cd51-f7b8-4ff3-ad7d-184cc3ab6faf/bin/uautomizer/z3 Starting monitored process 462 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 462 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 16:00:48,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-01 16:00:48,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 16:00:48,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-01 16:00:48,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 16:00:49,055 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 30 proven. 20 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-12-01 16:00:49,055 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 16:00:49,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2020-12-01 16:00:49,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488315548] [2020-12-01 16:00:49,056 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-12-01 16:00:49,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:00:49,056 INFO L82 PathProgramCache]: Analyzing trace with hash 3556, now seen corresponding path program 18 times [2020-12-01 16:00:49,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:00:49,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423929380] [2020-12-01 16:00:49,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:00:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:49,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:00:49,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:00:49,064 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 16:00:49,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:00:49,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-01 16:00:49,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=216, Unknown=0, NotChecked=0, Total=342 [2020-12-01 16:00:49,218 INFO L87 Difference]: Start difference. First operand 62 states and 68 transitions. cyclomatic complexity: 10 Second operand 19 states. [2020-12-01 16:00:49,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:00:49,749 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2020-12-01 16:00:49,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-01 16:00:49,754 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 53 transitions. [2020-12-01 16:00:49,755 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:00:49,755 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 0 states and 0 transitions. [2020-12-01 16:00:49,755 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 16:00:49,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 16:00:49,755 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 16:00:49,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 16:00:49,755 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:49,756 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:49,756 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:00:49,756 INFO L427 BuchiCegarLoop]: ======== Iteration 34============ [2020-12-01 16:00:49,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:00:49,756 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 16:00:49,756 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 16:00:49,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 04:00:49 BoogieIcfgContainer [2020-12-01 16:00:49,763 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 16:00:49,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:00:49,767 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:00:49,767 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:00:49,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:53:30" (3/4) ... [2020-12-01 16:00:49,771 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 16:00:49,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:00:49,772 INFO L168 Benchmark]: Toolchain (without parser) took 440323.15 ms. Allocated memory was 88.1 MB in the beginning and 318.8 MB in the end (delta: 230.7 MB). Free memory was 58.4 MB in the beginning and 202.6 MB in the end (delta: -144.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,773 INFO L168 Benchmark]: CDTParser took 0.96 ms. Allocated memory is still 88.1 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:00:49,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 400.39 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 58.2 MB in the beginning and 101.5 MB in the end (delta: -43.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,775 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.84 ms. Allocated memory is still 123.7 MB. Free memory was 101.5 MB in the beginning and 99.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,776 INFO L168 Benchmark]: Boogie Preprocessor took 64.69 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,776 INFO L168 Benchmark]: RCFGBuilder took 422.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 80.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,777 INFO L168 Benchmark]: BuchiAutomizer took 439343.77 ms. Allocated memory was 123.7 MB in the beginning and 318.8 MB in the end (delta: 195.0 MB). Free memory was 80.5 MB in the beginning and 202.6 MB in the end (delta: -122.0 MB). Peak memory consumption was 74.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:00:49,777 INFO L168 Benchmark]: Witness Printer took 5.15 ms. Allocated memory is still 318.8 MB. Free memory is still 202.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:00:49,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96 ms. Allocated memory is still 88.1 MB. Free memory was 47.3 MB in the beginning and 47.2 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 400.39 ms. Allocated memory was 88.1 MB in the beginning and 123.7 MB in the end (delta: 35.7 MB). Free memory was 58.2 MB in the beginning and 101.5 MB in the end (delta: -43.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.84 ms. Allocated memory is still 123.7 MB. Free memory was 101.5 MB in the beginning and 99.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.69 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 98.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 422.83 ms. Allocated memory is still 123.7 MB. Free memory was 98.1 MB in the beginning and 80.5 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 439343.77 ms. Allocated memory was 123.7 MB in the beginning and 318.8 MB in the end (delta: 195.0 MB). Free memory was 80.5 MB in the beginning and 202.6 MB in the end (delta: -122.0 MB). Peak memory consumption was 74.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.15 ms. Allocated memory is still 318.8 MB. Free memory is still 202.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 33 terminating modules (14 trivial, 15 deterministic, 4 nondeterministic). One deterministic module has affine ranking function 9 * unknown-#length-unknown[string_A] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * string_A + unknown-#length-unknown[string_A] + -1 * nc_A and consists of 3 locations. One deterministic module has affine ranking function -1 * string_B + -1 * nc_B + unknown-#length-unknown[string_B] and consists of 3 locations. One deterministic module has affine ranking function -2 * i + 1 and consists of 10 locations. One deterministic module has affine ranking function -2 * i + 3 and consists of 9 locations. One deterministic module has affine ranking function -2 * j + 3 * unknown-#length-unknown[string_B] and consists of 8 locations. One deterministic module has affine ranking function -1 * string_B + unknown-#length-unknown[string_B] + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 5 and consists of 13 locations. One deterministic module has affine ranking function -2 * i + 5 * unknown-#length-unknown[string_A] and consists of 10 locations. One deterministic module has affine ranking function 5 * nc_A + -6 * i and consists of 14 locations. One deterministic module has affine ranking function -2 * i + 3 * unknown-#length-unknown[string_B] + 2 * j and consists of 14 locations. One deterministic module has affine ranking function 5 * unknown-#length-unknown[string_A] + -4 * j and consists of 11 locations. One deterministic module has affine ranking function -2 * i + 3 * unknown-#length-unknown[string_B] and consists of 10 locations. One deterministic module has affine ranking function -2 * i + 2 * j + 3 and consists of 16 locations. One deterministic module has affine ranking function nc_A + j + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -6 * j + 5 * nc_B and consists of 14 locations. One nondeterministic module has affine ranking function unknown-#length-unknown[string_B] + -2 * j and consists of 11 locations. One nondeterministic module has affine ranking function 5 * unknown-#length-unknown[string_B] + -2 * i and consists of 9 locations. One nondeterministic module has affine ranking function 7 * nc_A + -8 * i and consists of 10 locations. 14 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 439.2s and 34 iterations. TraceHistogramMax:6. Analysis of lassos took 410.7s. Construction of modules took 3.9s. Büchi inclusion checks took 24.0s. Highest rank in rank-based complementation 3. Minimization of det autom 8. Minimization of nondet autom 25. Automata minimization 0.1s AutomataMinimizationTime, 32 MinimizatonAttempts, 262 StatesRemovedByMinimization, 29 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 99 states and ocurred in iteration 29. Nontrivial modules had stage [15, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 596 SDtfs, 1845 SDslu, 1686 SDs, 0 SdLazy, 3742 SolverSat, 595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc5 concLT0 SILN0 SILU9 SILI0 SILT0 lasso19 LassoPreprocessingBenchmarks: Lassos: inital438 mio100 ax100 hnf100 lsp97 ukn47 mio100 lsp52 div100 bol100 ite100 ukn100 eq180 hnf82 smp93 dnf537 smp80 tf100 neg94 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 144ms VariablesStem: 8 VariablesLoop: 5 DisjunctsStem: 36 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 76 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! Received shutdown request...