./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Collatz.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Collatz.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24b7e10190698e4022be968650337df07e87192188ebba57e38dae7824c717c2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:59:21,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:21,120 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:21,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:21,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:21,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:21,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:21,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:21,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:21,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:21,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:21,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:21,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:21,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:21,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:21,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:21,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:21,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:21,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:21,235 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:21,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:21,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:21,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:21,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:21,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:21,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:21,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:21,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:21,247 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:21,248 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:21,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:21,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:21,251 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:21,252 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:21,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:21,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:21,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:21,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:21,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:21,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:21,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:21,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:59:21,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:21,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:21,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:21,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:21,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:21,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:21,310 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:21,311 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:59:21,311 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:59:21,311 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:59:21,312 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:59:21,313 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:59:21,313 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:59:21,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:21,313 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:59:21,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:21,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:21,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:59:21,314 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:59:21,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:59:21,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:59:21,315 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:59:21,315 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:21,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:59:21,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:21,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:21,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:21,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:59:21,318 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:21,320 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:59:21,320 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b7e10190698e4022be968650337df07e87192188ebba57e38dae7824c717c2 [2021-10-28 23:59:21,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:21,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:21,628 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:21,629 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:21,634 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:21,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-crafted/Collatz.c [2021-10-28 23:59:21,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/data/1cb2d4d0b/dee734dcdfdd40ba9f3aa7ca6889bbf3/FLAG6c4c040f7 [2021-10-28 23:59:22,165 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:22,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/sv-benchmarks/c/termination-crafted/Collatz.c [2021-10-28 23:59:22,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/data/1cb2d4d0b/dee734dcdfdd40ba9f3aa7ca6889bbf3/FLAG6c4c040f7 [2021-10-28 23:59:22,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/data/1cb2d4d0b/dee734dcdfdd40ba9f3aa7ca6889bbf3 [2021-10-28 23:59:22,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:22,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:59:22,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:22,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:22,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:22,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f70e333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22, skipping insertion in model container [2021-10-28 23:59:22,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:22,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:22,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:22,746 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:22,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:22,774 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22 WrapperNode [2021-10-28 23:59:22,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:22,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:22,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:59:22,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:59:22,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:22,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:22,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:22,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:22,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:22,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:22,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:22,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:22,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (1/1) ... [2021-10-28 23:59:22,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:22,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:22,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:22,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:23,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:23,090 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:59:23,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23 BoogieIcfgContainer [2021-10-28 23:59:23,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:23,095 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:59:23,095 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:59:23,099 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:59:23,100 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:23,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:59:22" (1/3) ... [2021-10-28 23:59:23,102 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15d8ace2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:59:23, skipping insertion in model container [2021-10-28 23:59:23,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:23,102 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:22" (2/3) ... [2021-10-28 23:59:23,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15d8ace2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:59:23, skipping insertion in model container [2021-10-28 23:59:23,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:59:23,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23" (3/3) ... [2021-10-28 23:59:23,104 INFO L389 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2021-10-28 23:59:23,161 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:59:23,161 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:59:23,161 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:59:23,161 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:59:23,161 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:59:23,162 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:59:23,162 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:59:23,162 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:59:23,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:23,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:23,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:23,193 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:23,197 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:59:23,198 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:59:23,198 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:59:23,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:23,199 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:23,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:23,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:23,200 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:59:23,200 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:59:23,206 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L14-2true [2021-10-28 23:59:23,207 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~y~0 > 1); 6#L14true assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 8#L14-2true [2021-10-28 23:59:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,212 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:59:23,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:23,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211490969] [2021-10-28 23:59:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:23,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,289 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:23,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 23:59:23,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:23,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794696169] [2021-10-28 23:59:23,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:23,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,336 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 23:59:23,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:23,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2517682] [2021-10-28 23:59:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:23,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,382 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:23,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:23,502 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:23,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:23,503 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:23,503 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:23,503 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:23,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,504 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:23,504 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:23,504 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-10-28 23:59:23,504 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:23,505 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:23,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:23,645 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:23,646 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:23,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,650 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:23,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:23,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:59:23,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,738 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,739 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:59:23,741 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:23,741 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:23,807 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:23,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:23,813 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:23,813 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:23,813 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:23,814 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:23,814 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:23,814 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,814 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:23,814 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:23,814 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-10-28 23:59:23,814 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:23,814 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:23,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:23,902 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:23,906 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:23,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:23,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:23,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:23,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:23,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:23,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:23,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:23,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:23,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:59:23,953 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:23,964 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:23,964 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:23,966 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:23,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:23,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:23,975 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:23,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:59:23,976 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:23,976 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:59:24,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,004 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:24,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,037 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,055 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:24,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:59:24,117 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,171 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 8 states. [2021-10-28 23:59:24,172 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 [2021-10-28 23:59:24,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 23:59:24,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 23:59:24,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 23:59:24,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 23:59:24,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-28 23:59:24,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:24,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-28 23:59:24,189 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 23:59:24,189 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 23:59:24,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-28 23:59:24,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:24,191 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 23:59:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-28 23:59:24,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-28 23:59:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 23:59:24,216 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 23:59:24,216 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 23:59:24,217 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:59:24,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 23:59:24,217 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:24,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:24,218 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:24,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:59:24,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:59:24,218 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 69#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 70#L14-2 [2021-10-28 23:59:24,219 INFO L793 eck$LassoCheckResult]: Loop: 70#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 70#L14-2 [2021-10-28 23:59:24,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,219 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-28 23:59:24,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662312365] [2021-10-28 23:59:24,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,231 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,239 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-28 23:59:24,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713448809] [2021-10-28 23:59:24,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,249 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,258 INFO L85 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-28 23:59:24,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132574872] [2021-10-28 23:59:24,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,259 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,272 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:24,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:24,329 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:24,329 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:24,329 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:24,329 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:24,329 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:24,330 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,330 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:24,330 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:24,330 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-10-28 23:59:24,330 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:24,330 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:24,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:24,402 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:24,402 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:24,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:59:24,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:24,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,484 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:59:24,489 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:24,490 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:24,561 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:24,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,568 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:24,569 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:24,569 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:24,569 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:24,569 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:24,569 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,569 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:24,569 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:24,569 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-10-28 23:59:24,569 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:24,570 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:24,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:24,642 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:24,643 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:24,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,646 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,654 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:24,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:24,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:24,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:24,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:24,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:24,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:24,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:24,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:59:24,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:24,689 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:24,690 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:24,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:24,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,698 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:24,698 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:24,698 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:24,698 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:59:24,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:59:24,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:24,730 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:24,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,762 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:24,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:24,781 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:59:24,781 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,793 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-28 23:59:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:59:24,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 23:59:24,795 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 23:59:24,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:59:24,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,796 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 23:59:24,796 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:24,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-28 23:59:24,797 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:24,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 23:59:24,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 23:59:24,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 23:59:24,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-28 23:59:24,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:24,799 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 23:59:24,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-28 23:59:24,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 23:59:24,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:24,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 23:59:24,801 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 23:59:24,801 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 23:59:24,801 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:59:24,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-28 23:59:24,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 23:59:24,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:24,802 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:24,802 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 23:59:24,803 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 23:59:24,803 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 123#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 124#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 127#L14-2 [2021-10-28 23:59:24,803 INFO L793 eck$LassoCheckResult]: Loop: 127#L14-2 assume !!(main_~y~0 > 1); 128#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 127#L14-2 [2021-10-28 23:59:24,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:24,803 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-28 23:59:24,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:24,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048326635] [2021-10-28 23:59:24,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:24,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:24,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:24,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:24,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048326635] [2021-10-28 23:59:24,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048326635] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:59:24,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182098558] [2021-10-28 23:59:24,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:59:24,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:59:24,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:24,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:59:24,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:59:24,939 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:59:24,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:59:24,940 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:59:24,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182098558] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:25,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:59:25,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 23:59:25,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996460464] [2021-10-28 23:59:25,084 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 23:59:25,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-28 23:59:25,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,086 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365850041] [2021-10-28 23:59:25,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,093 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,127 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,187 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:25,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:25,188 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:25,188 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:25,188 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:25,188 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,188 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:25,188 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:25,188 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-10-28 23:59:25,188 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:25,189 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:25,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:25,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,244 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:25,244 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:25,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,245 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,258 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:25,258 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:59:25,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,330 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:25,336 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:25,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:59:25,420 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:25,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-28 23:59:25,423 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:25,423 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:25,423 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:25,423 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:25,423 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:25,423 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,423 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:25,423 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:25,424 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-10-28 23:59:25,424 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:25,424 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:25,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:25,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:25,477 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:25,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,478 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,486 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:25,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:25,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:25,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:25,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:25,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:25,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:25,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:25,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:59:25,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:59:25,521 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:59:25,521 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:59:25,522 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:25,523 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:59:25,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:59:25,534 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:59:25,534 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:59:25,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:59:25,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,574 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:59:25,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,615 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,635 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:59:25,635 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,646 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 23:59:25,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:59:25,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 23:59:25,647 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:59:25,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,648 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:25,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,681 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,707 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:59:25,707 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,721 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 23:59:25,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:59:25,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 23:59:25,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:59:25,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,724 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:59:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,763 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,780 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 23:59:25,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-10-28 23:59:25,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:59:25,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 23:59:25,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 23:59:25,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 23:59:25,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 23:59:25,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:59:25,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-28 23:59:25,804 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:59:25,805 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-28 23:59:25,805 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 23:59:25,805 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 23:59:25,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 23:59:25,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:25,806 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 23:59:25,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 23:59:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-28 23:59:25,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-28 23:59:25,808 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 23:59:25,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:25,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:59:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:59:25,813 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:25,841 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2021-10-28 23:59:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:59:25,841 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-10-28 23:59:25,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 23:59:25,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-10-28 23:59:25,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 23:59:25,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 23:59:25,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 23:59:25,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:59:25,844 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 23:59:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 23:59:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-10-28 23:59:25,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-28 23:59:25,847 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 23:59:25,847 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 23:59:25,847 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:59:25,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-28 23:59:25,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 23:59:25,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:59:25,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:59:25,849 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 23:59:25,849 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 23:59:25,849 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 23:59:25,849 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 23:59:25,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 23:59:25,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415490501] [2021-10-28 23:59:25,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,858 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,860 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-28 23:59:25,861 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293063289] [2021-10-28 23:59:25,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,871 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,880 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,880 INFO L85 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2021-10-28 23:59:25,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:25,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301070816] [2021-10-28 23:59:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,890 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:25,902 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:25,955 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:25,955 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:25,955 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:25,955 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:25,955 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:25,955 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:25,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:25,956 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:25,956 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 23:59:25,956 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:25,956 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:25,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:26,025 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:26,026 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:26,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,027 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:26,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:26,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:59:26,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,101 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,102 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:26,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:26,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:59:26,207 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:26,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,214 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:26,214 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:26,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:26,215 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:26,215 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:26,215 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,215 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:26,215 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:26,215 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 23:59:26,215 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:26,215 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:26,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:26,294 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:26,295 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:26,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,296 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:26,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:26,315 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:26,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:59:26,336 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,359 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:59:26,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,360 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,362 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:59:26,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:26,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,370 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:26,373 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:26,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,405 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,442 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:59:26,442 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,443 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:26,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,464 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:26,467 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:26,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:59:26,487 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,524 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:59:26,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,525 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:59:26,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:26,540 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,540 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:26,546 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:26,546 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,558 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,583 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:59:26,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,584 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:59:26,595 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,602 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:26,603 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:26,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,603 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:26,606 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:26,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,655 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,656 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:59:26,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,656 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:59:26,660 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,668 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:26,668 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:26,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,669 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:26,674 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:26,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,701 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,738 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:59:26,739 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,741 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,751 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,761 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:26,761 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:26,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,762 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:26,773 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:26,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:59:26,803 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,836 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:59:26,837 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,839 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:59:26,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,848 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:26,848 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:26,849 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,849 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:26,852 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:26,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,904 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:59:26,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:26,905 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:26,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:26,924 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:26,924 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:26,924 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:26,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:26,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:26,924 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:26,930 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:26,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:26,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:59:26,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:26,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:26,998 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:26,998 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:26,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:26,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:26,999 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:26,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:26,999 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:26,999 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:26,999 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 23:59:26,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:26,999 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:27,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,119 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:27,120 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:27,120 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,121 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:27,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:27,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:59:27,150 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:27,151 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:59:27,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,189 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:27,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:27,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:59:27,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,286 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:27,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:27,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:59:27,407 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:27,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,413 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:27,413 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:27,413 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:27,413 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:27,413 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:27,413 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,414 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:27,414 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:27,414 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 23:59:27,414 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:27,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:27,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:27,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:27,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:27,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,502 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:59:27,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:27,519 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:27,519 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:27,534 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,571 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,571 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,574 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:59:27,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:27,585 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:27,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,601 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,642 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,645 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:27,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:27,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:59:27,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,694 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:59:27,694 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,695 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:59:27,696 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,704 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,704 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:27,710 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:59:27,710 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:59:27,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,778 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,780 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:59:27,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,788 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,788 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:27,789 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:27,789 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 23:59:27,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,824 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:59:27,827 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,834 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,834 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,834 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,834 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,834 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:27,835 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:27,835 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,837 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,860 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:59:27,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,861 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:59:27,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,880 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:27,888 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:27,889 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:27,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:59:27,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,926 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:59:27,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,936 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:27,937 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:27,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 23:59:27,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,959 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:59:27,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:27,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:27,968 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:27,968 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:27,968 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:27,968 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:27,969 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:27,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:27,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:27,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:27,992 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:59:27,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:27,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:27,993 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:27,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:59:27,994 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:28,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,002 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,012 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 23:59:28,012 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 23:59:28,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,068 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,078 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:28,088 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,089 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,089 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:28,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:59:28,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,146 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:28,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,162 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,163 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:28,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:59:28,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,210 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:59:28,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,211 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,213 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,222 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,222 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:28,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,223 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:28,228 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:59:28,228 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:59:28,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:59:28,244 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,266 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:59:28,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,283 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,283 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:28,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,284 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:28,284 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:28,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,336 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:59:28,338 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,346 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,346 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:28,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,347 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:28,347 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:28,347 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,349 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-10-28 23:59:28,369 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:59:28,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,370 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,372 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:59:28,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,380 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:28,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,381 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:28,396 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:28,396 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:28,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 23:59:28,457 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,458 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,476 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,476 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:28,476 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,476 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:28,478 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:28,478 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:59:28,497 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,538 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,542 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:59:28,551 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,551 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:28,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,551 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:28,553 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:28,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,569 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,602 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:59:28,603 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,606 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,619 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,619 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:28,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,619 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,629 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 23:59:28,630 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 23:59:28,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:59:28,697 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,730 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,744 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,744 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:28,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,745 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,746 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:28,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:59:28,765 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,798 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,800 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,810 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,810 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:28,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,811 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:28,812 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:28,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:59:28,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,859 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:59:28,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,862 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,865 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,875 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,875 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:28,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,876 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:28,884 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:28,885 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:28,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:59:28,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:28,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:28,944 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:28,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:28,945 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:28,947 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:28,957 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:28,957 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:28,958 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:28,958 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:28,958 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:28,958 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:28,959 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:28,959 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:28,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:59:28,969 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 23:59:29,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,002 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:59:29,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,012 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,012 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:29,012 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,012 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:29,013 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:29,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,014 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 23:59:29,036 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:59:29,036 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,037 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:59:29,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,048 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,048 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:29,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,048 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:29,059 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-28 23:59:29,059 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-28 23:59:29,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,108 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:59:29,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,117 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,118 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:29,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,118 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:29,119 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:29,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,121 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,141 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:59:29,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,150 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,150 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:29,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,150 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:29,151 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:29,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,173 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-10-28 23:59:29,173 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 23:59:29,173 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 23:59:29,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:29,174 INFO L85 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-10-28 23:59:29,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:29,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069530280] [2021-10-28 23:59:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:29,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,190 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:29,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:29,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2021-10-28 23:59:29,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:29,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175566614] [2021-10-28 23:59:29,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:29,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,207 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,214 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:29,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-10-28 23:59:29,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:29,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975836144] [2021-10-28 23:59:29,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:29,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,229 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:29,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:29,294 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:29,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:29,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:29,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:29,294 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:29,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,295 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:29,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:29,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 23:59:29,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:29,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:29,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:29,354 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:29,355 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:29,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,356 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:29,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:29,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:59:29,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,434 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:29,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:29,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:59:29,556 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:29,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,561 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:29,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:29,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:29,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:29,561 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:29,561 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,561 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:29,561 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:29,561 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 23:59:29,561 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:29,561 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:29,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:29,622 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:29,622 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:29,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,625 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:29,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,645 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,645 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,645 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:29,647 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:29,647 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:59:29,657 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,695 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:59:29,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,696 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,698 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:29,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,708 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,708 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:29,711 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:29,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:59:29,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,757 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:59:29,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,758 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:29,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,773 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:29,776 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:29,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:59:29,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,834 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:59:29,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,835 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,848 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:29,848 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,848 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:29,851 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:29,852 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:59:29,869 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,902 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:59:29,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,905 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,917 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,917 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:29,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,918 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:29,920 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:29,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:59:29,933 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:29,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:29,967 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:59:29,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:29,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:29,967 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:29,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:29,985 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:29,985 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:29,985 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:29,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:29,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:29,986 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:29,989 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:29,989 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:29,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:59:30,009 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:30,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,047 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:59:30,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,049 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,051 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:30,062 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:30,062 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:30,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:30,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:30,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:30,062 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:30,068 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:30,068 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:30,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:59:30,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:30,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,133 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:59:30,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,134 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:30,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:59:30,145 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:30,145 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:30,145 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:30,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:30,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:30,146 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:30,148 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:30,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:30,153 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:30,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-28 23:59:30,176 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:59:30,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,177 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:59:30,178 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:30,187 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:30,187 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:30,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:30,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:30,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:30,188 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:30,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:30,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:30,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:30,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,427 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:30,428 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:30,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:30,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:30,428 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:59:30,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:30,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:30,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 23:59:30,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:30,428 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:30,428 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:59:30,429 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:59:30,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,578 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:30,578 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:59:30,578 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,579 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:30,589 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:30,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:59:30,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:30,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:59:30,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,624 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:59:30,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:30,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:30,635 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:59:30,635 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:59:30,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,658 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,659 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:59:30,661 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:59:30,661 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:30,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,705 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:59:30,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:59:30,707 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:59:30,807 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:59:30,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:30,809 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:59:30,809 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:59:30,809 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:59:30,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:59:30,810 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:59:30,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:59:30,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:59:30,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 23:59:30,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:59:30,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:59:30,810 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:59:30,810 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 23:59:30,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:59:30,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:59:30,971 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:59:30,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:30,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:30,978 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:30,982 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:30,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:59:30,991 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:30,992 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:30,992 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:30,992 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:30,992 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:30,992 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:30,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-28 23:59:31,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,023 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:59:31,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:31,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:59:31,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,035 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 23:59:31,065 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,066 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:59:31,067 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:59:31,083 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:31,083 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:59:31,098 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 23:59:31,128 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:59:31,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,129 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:59:31,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,139 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,139 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,140 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:31,140 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-10-28 23:59:31,164 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,165 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 23:59:31,212 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,213 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,213 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,213 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,214 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:31,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,229 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,257 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:59:31,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,267 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,267 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,267 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,267 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,273 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:59:31,273 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:59:31,293 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,330 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:59:31,330 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,332 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,344 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,344 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,344 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:31,345 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:31,345 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 23:59:31,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,399 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,413 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,413 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,413 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:31,413 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:31,414 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:59:31,422 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,444 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:59:31,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,458 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,458 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:31,465 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:31,465 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:31,476 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,499 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:59:31,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,500 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 23:59:31,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,510 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:31,510 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:31,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,533 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,542 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 23:59:31,558 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,568 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:31,569 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:31,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,570 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,596 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,598 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 23:59:31,600 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,608 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:59:31,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,609 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:31,618 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 23:59:31,619 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 23:59:31,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-10-28 23:59:31,685 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:59:31,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,686 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,705 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:31,705 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:31,705 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,705 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,706 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,706 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:31,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 23:59:31,729 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,765 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,770 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,783 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:31,783 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:31,783 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,783 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,783 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,783 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,784 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:59:31,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 23:59:31,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,833 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,835 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,846 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:31,846 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:31,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,846 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:59:31,853 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 23:59:31,853 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 23:59:31,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:59:31,885 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,923 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:59:31,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,924 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,930 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:31,942 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:31,943 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:31,943 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:31,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:31,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:31,943 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:31,944 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:31,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:31,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:59:31,957 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:31,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:31,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:31,996 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:31,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,010 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,010 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:32,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,010 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:32,011 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:32,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:59:32,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,066 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,070 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,080 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,080 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:59:32,081 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,081 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,081 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:32,088 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:32,089 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:32,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:59:32,124 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,158 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:59:32,158 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,159 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:59:32,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,172 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,172 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,173 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,173 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:32,174 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:32,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,193 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,230 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,234 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,244 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,244 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,244 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,245 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:32,246 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:59:32,246 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:59:32,269 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,306 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,308 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,318 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,318 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,318 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,318 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:59:32,329 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 23:59:32,329 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 23:59:32,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:59:32,391 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,424 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:59:32,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,426 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,428 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,437 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,437 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:32,437 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,438 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:32,438 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:32,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 23:59:32,455 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,489 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,490 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,491 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,503 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,503 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:32,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,503 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:32,504 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:59:32,504 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 23:59:32,517 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,550 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,554 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,556 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,565 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,565 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:59:32,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,566 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:59:32,573 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 23:59:32,574 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 23:59:32,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 23:59:32,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,638 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:59:32,638 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,639 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 23:59:32,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,647 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,647 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,648 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,648 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,648 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,648 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:32,648 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:32,649 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,671 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,678 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-28 23:59:32,689 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,689 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:59:32,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,689 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:32,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:59:32,692 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:59:32,694 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:59:32,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:32,714 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:32,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 23:59:32,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:59:32,723 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:59:32,723 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:59:32,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:59:32,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:59:32,723 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:59:32,732 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-28 23:59:32,733 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-28 23:59:32,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:59:32,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:32,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:59:32 BoogieIcfgContainer [2021-10-28 23:59:32,808 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:59:32,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:59:32,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:59:32,809 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:59:32,809 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23" (3/4) ... [2021-10-28 23:59:32,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:59:32,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:59:32,813 INFO L168 Benchmark]: Toolchain (without parser) took 10269.82 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 60.4 MB in the beginning and 41.8 MB in the end (delta: 18.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:32,814 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:32,814 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.95 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 71.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:32,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 94.4 MB. Free memory was 71.7 MB in the beginning and 70.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:32,815 INFO L168 Benchmark]: Boogie Preprocessor took 16.32 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.3 MB in the end (delta: 909.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:32,815 INFO L168 Benchmark]: RCFGBuilder took 266.94 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 61.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:32,816 INFO L168 Benchmark]: BuchiAutomizer took 9712.51 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 61.8 MB in the beginning and 41.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 68.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:32,816 INFO L168 Benchmark]: Witness Printer took 3.69 ms. Allocated memory is still 134.2 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:32,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 94.4 MB. Free memory was 64.6 MB in the beginning and 64.6 MB in the end (delta: 25.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.95 ms. Allocated memory is still 94.4 MB. Free memory was 60.2 MB in the beginning and 71.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 94.4 MB. Free memory was 71.7 MB in the beginning and 70.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.32 ms. Allocated memory is still 94.4 MB. Free memory was 70.3 MB in the beginning and 69.3 MB in the end (delta: 909.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 266.94 ms. Allocated memory is still 94.4 MB. Free memory was 69.3 MB in the beginning and 61.8 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9712.51 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 61.8 MB in the beginning and 41.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 68.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.69 ms. Allocated memory is still 134.2 MB. Free memory is still 41.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 9.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 20 SDslu, 6 SDs, 0 SdLazy, 44 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div517 bol100 ite100 ukn100 eq125 hnf42 smp72 dnf100 smp100 tf105 neg99 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 53ms VariablesStem: 4 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer is unable to decide termination for the following lasso. Stem: "havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;" "assume !!(main_~y~0 > 1);" "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" Loop: "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-10-28 23:59:32,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:33,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f92a1d54-2ca8-4066-a554-ef17ef167d86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...