./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/GCD3.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_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/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_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/GCD3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/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_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/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 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:09:30,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:09:30,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:09:30,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:09:30,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:09:30,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:09:30,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:09:30,197 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:09:30,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:09:30,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:09:30,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:09:30,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:09:30,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:09:30,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:09:30,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:09:30,221 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:09:30,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:09:30,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:09:30,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:09:30,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:09:30,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:09:30,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:09:30,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:09:30,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:09:30,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:09:30,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:09:30,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:09:30,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:09:30,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:09:30,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:09:30,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:09:30,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:09:30,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:09:30,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:09:30,253 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:09:30,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:09:30,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:09:30,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:09:30,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:09:30,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:09:30,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:09:30,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:09:30,306 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:09:30,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:09:30,311 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:09:30,311 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:09:30,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:09:30,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:09:30,314 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:09:30,315 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:09:30,315 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:09:30,315 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:09:30,316 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:09:30,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:09:30,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:09:30,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:09:30,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:09:30,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:09:30,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:09:30,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:09:30,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:09:30,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:09:30,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:09:30,319 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:09:30,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:09:30,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:09:30,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:09:30,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:09:30,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:09:30,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:09:30,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:09:30,330 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:09:30,330 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_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2021-10-28 23:09:30,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:09:30,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:09:30,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:09:30,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:09:30,624 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:09:30,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-restricted-15/GCD3.c [2021-10-28 23:09:30,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/data/5e78c3340/625e869187274619ab6e415596a695e5/FLAGfbf091db8 [2021-10-28 23:09:31,175 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:09:31,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/sv-benchmarks/c/termination-restricted-15/GCD3.c [2021-10-28 23:09:31,221 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/data/5e78c3340/625e869187274619ab6e415596a695e5/FLAGfbf091db8 [2021-10-28 23:09:31,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/data/5e78c3340/625e869187274619ab6e415596a695e5 [2021-10-28 23:09:31,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:09:31,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:09:31,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:31,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:09:31,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:09:31,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26efd48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31, skipping insertion in model container [2021-10-28 23:09:31,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:09:31,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:09:31,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:31,726 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:09:31,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:09:31,752 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:09:31,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31 WrapperNode [2021-10-28 23:09:31,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:09:31,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:31,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:09:31,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:09:31,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:09:31,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:09:31,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:09:31,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:09:31,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:09:31,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:09:31,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:09:31,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:09:31,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (1/1) ... [2021-10-28 23:09:31,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:31,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:31,858 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:31,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:09:31,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:09:31,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:09:32,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:09:32,044 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-28 23:09:32,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:32 BoogieIcfgContainer [2021-10-28 23:09:32,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:09:32,047 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:09:32,047 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:09:32,051 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:09:32,051 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:32,052 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:09:31" (1/3) ... [2021-10-28 23:09:32,053 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@239d174f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:09:32, skipping insertion in model container [2021-10-28 23:09:32,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:32,053 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:09:31" (2/3) ... [2021-10-28 23:09:32,054 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@239d174f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:09:32, skipping insertion in model container [2021-10-28 23:09:32,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:09:32,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:32" (3/3) ... [2021-10-28 23:09:32,056 INFO L389 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2021-10-28 23:09:32,101 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:09:32,101 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:09:32,101 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:09:32,102 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:09:32,102 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:09:32,102 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:09:32,102 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:09:32,102 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:09:32,117 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:32,131 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:32,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:32,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:32,138 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:09:32,138 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:09:32,138 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:09:32,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:32,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:32,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:32,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:32,141 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:09:32,141 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:09:32,148 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 11#L13-2true [2021-10-28 23:09:32,149 INFO L793 eck$LassoCheckResult]: Loop: 11#L13-2true assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 8#L17true assume 0 == main_~y~0;main_~y~0 := main_~y~0; 12#L21-2true assume main_~xtmp~0 > 0; 9#L26-2true assume !true; 14#L26-3true main_~y~0 := main_~xtmp~0; 6#L25-1true main_~x~0 := main_~tmp~0; 11#L13-2true [2021-10-28 23:09:32,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:32,155 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:09:32,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:32,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115242235] [2021-10-28 23:09:32,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:32,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,238 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,257 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:32,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1186550784, now seen corresponding path program 1 times [2021-10-28 23:09:32,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:32,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442619000] [2021-10-28 23:09:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:32,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:32,399 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 23:09:32,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:32,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442619000] [2021-10-28 23:09:32,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442619000] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:09:32,407 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:09:32,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:09:32,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927638435] [2021-10-28 23:09:32,413 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:09:32,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:32,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:09:32,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:09:32,446 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 23:09:32,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:32,491 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2021-10-28 23:09:32,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:09:32,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2021-10-28 23:09:32,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:32,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 13 transitions. [2021-10-28 23:09:32,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-10-28 23:09:32,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-10-28 23:09:32,530 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2021-10-28 23:09:32,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:32,531 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 23:09:32,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2021-10-28 23:09:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-28 23:09:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2021-10-28 23:09:32,586 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 23:09:32,586 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2021-10-28 23:09:32,586 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:09:32,587 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2021-10-28 23:09:32,589 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:32,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:32,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:32,590 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:09:32,591 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:32,591 INFO L791 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 40#L13-2 [2021-10-28 23:09:32,591 INFO L793 eck$LassoCheckResult]: Loop: 40#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 37#L17 assume !(0 == main_~y~0); 38#L21 assume !(main_~y~0 < 0); 43#L21-2 assume main_~xtmp~0 > 0; 41#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 42#L26-3 main_~y~0 := main_~xtmp~0; 44#L25-1 main_~x~0 := main_~tmp~0; 40#L13-2 [2021-10-28 23:09:32,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-28 23:09:32,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:32,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438938476] [2021-10-28 23:09:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:32,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,608 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:32,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:32,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1818401082, now seen corresponding path program 1 times [2021-10-28 23:09:32,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:32,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038213806] [2021-10-28 23:09:32,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:32,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:32,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:32,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash 669111751, now seen corresponding path program 1 times [2021-10-28 23:09:32,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:32,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902220032] [2021-10-28 23:09:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:32,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,657 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:32,679 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:32,808 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:32,808 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:32,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:32,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:32,810 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:09:32,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:32,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:32,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:32,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2021-10-28 23:09:32,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:32,817 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:32,838 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 23:09:32,845 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 23:09:32,849 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 23:09:32,949 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:32,950 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:09:32,952 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:32,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:32,954 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:32,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:09:32,956 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:32,956 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:32,978 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:32,979 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:09:33,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:33,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:33,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:33,017 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:33,025 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:33,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:33,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:09:33,049 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:33,049 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:09:33,086 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:33,086 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:33,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:33,088 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:33,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:09:33,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:33,094 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:33,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:33,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:33,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:33,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:33,172 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:09:33,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:33,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:09:37,363 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:09:37,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 23:09:37,366 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:37,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:37,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:37,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:37,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:37,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:37,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:37,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:37,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration2_Loop [2021-10-28 23:09:37,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:37,367 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:37,369 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 23:09:37,381 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 23:09:37,384 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 23:09:37,497 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:37,502 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:37,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:37,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:37,505 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:37,510 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 23:09:37,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:09:37,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:37,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:37,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:37,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:37,526 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:37,526 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:37,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:37,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:37,577 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:37,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:37,579 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:37,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:09:37,585 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 23:09:37,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:37,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:37,595 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:37,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:37,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:37,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:37,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:37,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:37,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:37,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:37,655 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:37,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 23:09:37,657 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 23:09:37,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:37,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:37,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:37,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:37,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:37,669 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:37,669 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:37,683 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:37,688 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:09:37,689 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:09:37,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:37,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:37,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:37,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:37,702 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:09:37,702 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:37,702 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 23:09:37,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 23:09:37,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:37,740 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:09:37,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:37,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:37,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:09:37,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:37,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:37,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:37,880 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 23:09:37,883 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2021-10-28 23:09:37,884 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4 Second 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 23:09:37,948 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 4. Second 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) Result 38 states and 49 transitions. Complement of second has 10 states. [2021-10-28 23:09:37,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:37,949 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 23:09:37,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 25 transitions. [2021-10-28 23:09:37,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 1 letters. Loop has 7 letters. [2021-10-28 23:09:37,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:37,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 8 letters. Loop has 7 letters. [2021-10-28 23:09:37,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:37,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 25 transitions. Stem has 1 letters. Loop has 14 letters. [2021-10-28 23:09:37,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:37,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 49 transitions. [2021-10-28 23:09:37,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2021-10-28 23:09:37,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 26 states and 32 transitions. [2021-10-28 23:09:37,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 23:09:37,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2021-10-28 23:09:37,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2021-10-28 23:09:37,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:09:37,958 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-10-28 23:09:37,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2021-10-28 23:09:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2021-10-28 23:09:37,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2021-10-28 23:09:37,961 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-28 23:09:37,961 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2021-10-28 23:09:37,961 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:09:37,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2021-10-28 23:09:37,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:37,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:37,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:37,962 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:09:37,963 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:09:37,963 INFO L791 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 145#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 140#L17 assume !(0 == main_~y~0); 141#L21 assume !(main_~y~0 < 0); 150#L21-2 assume main_~xtmp~0 > 0; 146#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 147#L26-2 [2021-10-28 23:09:37,963 INFO L793 eck$LassoCheckResult]: Loop: 147#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 147#L26-2 [2021-10-28 23:09:37,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:37,963 INFO L85 PathProgramCache]: Analyzing trace with hash 925834904, now seen corresponding path program 1 times [2021-10-28 23:09:37,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:37,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383426511] [2021-10-28 23:09:37,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:37,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:37,972 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:37,980 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:37,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:37,981 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2021-10-28 23:09:37,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:37,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583631460] [2021-10-28 23:09:37,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:37,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:37,986 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:37,989 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:37,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:37,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1363889015, now seen corresponding path program 2 times [2021-10-28 23:09:37,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:37,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411748776] [2021-10-28 23:09:37,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:37,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:38,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:38,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:38,143 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:38,143 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:38,143 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:38,143 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:38,143 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:09:38,143 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,143 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:38,143 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:38,143 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Lasso [2021-10-28 23:09:38,143 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:38,143 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:38,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,148 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 23:09:38,151 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 23:09:38,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,276 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:38,276 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:09:38,276 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,281 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:38,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:38,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 23:09:38,303 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:38,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:09:38,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,328 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,333 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 23:09:38,338 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:38,338 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:38,361 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:38,361 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 23:09:38,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,384 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,385 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 23:09:38,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:38,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:38,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,457 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,465 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:09:38,465 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:38,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 23:09:38,630 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:09:38,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,634 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:38,634 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:38,634 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:38,634 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:38,634 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:38,634 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,634 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:38,634 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:38,634 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Lasso [2021-10-28 23:09:38,634 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:38,635 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:38,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:38,659 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 23:09:38,661 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 23:09:38,675 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 23:09:38,676 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 23:09:38,754 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:38,754 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:38,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,755 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,762 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 23:09:38,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:38,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:38,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:38,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:38,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:38,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:38,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:09:38,801 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:38,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,841 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,847 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 23:09:38,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:38,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:38,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:38,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:38,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:38,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:38,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:09:38,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:38,901 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2021-10-28 23:09:38,901 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 23:09:38,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:38,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:38,904 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:38,925 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:38,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:09:38,958 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:09:38,959 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:38,959 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-10-28 23:09:38,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:38,999 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 23:09:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:39,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:09:39,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:39,128 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:39,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:39,128 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 23:09:39,131 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 23:09:39,131 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 23:09:39,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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) Result 27 states and 35 transitions. Complement of second has 6 states. [2021-10-28 23:09:39,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:39,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 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 23:09:39,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-28 23:09:39,174 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2021-10-28 23:09:39,174 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:39,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2021-10-28 23:09:39,175 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:39,175 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 23:09:39,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:39,176 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 35 transitions. [2021-10-28 23:09:39,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:39,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 26 states and 33 transitions. [2021-10-28 23:09:39,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 23:09:39,187 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2021-10-28 23:09:39,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2021-10-28 23:09:39,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:09:39,188 INFO L681 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-10-28 23:09:39,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2021-10-28 23:09:39,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2021-10-28 23:09:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.28) internal successors, (32), 24 states have internal predecessors, (32), 0 states have call successors, (0), 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 23:09:39,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2021-10-28 23:09:39,195 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-28 23:09:39,195 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 32 transitions. [2021-10-28 23:09:39,195 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:09:39,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 32 transitions. [2021-10-28 23:09:39,198 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2021-10-28 23:09:39,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:39,198 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:39,199 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:39,199 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:39,201 INFO L791 eck$LassoCheckResult]: Stem: 246#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 247#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 242#L17 assume !(0 == main_~y~0); 243#L21 assume !(main_~y~0 < 0); 251#L21-2 assume main_~xtmp~0 > 0; 258#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 266#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 249#L26-3 [2021-10-28 23:09:39,201 INFO L793 eck$LassoCheckResult]: Loop: 249#L26-3 main_~y~0 := main_~xtmp~0; 255#L25-1 main_~x~0 := main_~tmp~0; 256#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 265#L17 assume !(0 == main_~y~0); 264#L21 assume !(main_~y~0 < 0); 263#L21-2 assume main_~xtmp~0 > 0; 248#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 249#L26-3 [2021-10-28 23:09:39,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:39,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1363889017, now seen corresponding path program 1 times [2021-10-28 23:09:39,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:39,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836644139] [2021-10-28 23:09:39,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:39,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:39,221 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:39,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:39,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:39,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1776384388, now seen corresponding path program 2 times [2021-10-28 23:09:39,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:39,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048529756] [2021-10-28 23:09:39,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:39,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:39,246 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:39,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:39,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:39,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1008190014, now seen corresponding path program 1 times [2021-10-28 23:09:39,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:39,257 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625815493] [2021-10-28 23:09:39,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:39,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:39,344 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:39,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:09:39,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625815493] [2021-10-28 23:09:39,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625815493] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:39,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120216549] [2021-10-28 23:09:39,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:39,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:09:39,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:39,347 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:09:39,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-28 23:09:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:39,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:09:39,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:39,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120216549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:09:39,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 23:09:39,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-28 23:09:39,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278199567] [2021-10-28 23:09:39,515 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:39,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:39,516 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:39,516 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:39,516 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:09:39,516 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:39,516 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:39,516 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:39,516 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2021-10-28 23:09:39,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:39,517 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:39,518 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 23:09:39,521 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 23:09:39,561 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 23:09:39,629 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:39,630 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:09:39,630 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:39,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:39,641 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:39,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:09:39,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:39,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:39,661 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:39,661 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:09:39,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:39,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:39,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:39,696 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:39,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:09:39,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:39,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:39,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:39,752 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:39,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:39,753 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:39,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:09:39,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:09:39,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:39,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,615 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:09:47,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 23:09:47,623 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:47,623 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:47,623 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:47,623 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:47,623 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:47,623 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,623 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:47,623 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:47,623 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Loop [2021-10-28 23:09:47,623 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:47,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:47,625 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 23:09:47,628 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 23:09:47,654 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 23:09:47,707 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:47,707 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:47,708 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,709 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:09:47,715 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 23:09:47,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,724 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:47,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:47,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:47,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,784 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:09:47,786 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:09:47,795 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:47,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:47,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:47,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:47,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:47,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:47,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:47,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:47,822 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:09:47,822 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:09:47,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:47,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:47,828 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:47,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:09:47,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:47,829 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:09:47,829 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:47,829 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2021-10-28 23:09:47,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:47,859 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:09:47,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:47,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:09:47,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:47,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:47,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:47,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:47,973 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 23:09:47,974 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:09:47,974 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 32 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,026 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 32 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 67 states and 85 transitions. Complement of second has 9 states. [2021-10-28 23:09:48,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:48,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2021-10-28 23:09:48,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 7 letters. Loop has 7 letters. [2021-10-28 23:09:48,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 14 letters. Loop has 7 letters. [2021-10-28 23:09:48,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 7 letters. Loop has 14 letters. [2021-10-28 23:09:48,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:48,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 67 states and 85 transitions. [2021-10-28 23:09:48,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:09:48,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 67 states to 53 states and 67 transitions. [2021-10-28 23:09:48,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2021-10-28 23:09:48,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2021-10-28 23:09:48,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 67 transitions. [2021-10-28 23:09:48,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:09:48,034 INFO L681 BuchiCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-10-28 23:09:48,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 67 transitions. [2021-10-28 23:09:48,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 46. [2021-10-28 23:09:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 45 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2021-10-28 23:09:48,039 INFO L704 BuchiCegarLoop]: Abstraction has 46 states and 58 transitions. [2021-10-28 23:09:48,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:09:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:09:48,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:09:48,041 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 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 23:09:48,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:09:48,160 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2021-10-28 23:09:48,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 23:09:48,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 60 transitions. [2021-10-28 23:09:48,162 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:09:48,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 31 states and 37 transitions. [2021-10-28 23:09:48,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 23:09:48,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:09:48,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2021-10-28 23:09:48,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:09:48,163 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-10-28 23:09:48,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2021-10-28 23:09:48,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2021-10-28 23:09:48,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 23 states have (on average 1.173913043478261) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:48,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-10-28 23:09:48,166 INFO L704 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-28 23:09:48,166 INFO L587 BuchiCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-28 23:09:48,166 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:09:48,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 27 transitions. [2021-10-28 23:09:48,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-10-28 23:09:48,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:48,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:48,167 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:48,167 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:09:48,167 INFO L791 eck$LassoCheckResult]: Stem: 561#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 562#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 559#L17 assume !(0 == main_~y~0); 560#L21 assume !(main_~y~0 < 0); 567#L21-2 assume main_~xtmp~0 > 0; 573#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 572#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 566#L26-3 [2021-10-28 23:09:48,168 INFO L793 eck$LassoCheckResult]: Loop: 566#L26-3 main_~y~0 := main_~xtmp~0; 571#L25-1 main_~x~0 := main_~tmp~0; 581#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 579#L17 assume !(0 == main_~y~0); 578#L21 assume !(main_~y~0 < 0); 570#L21-2 assume main_~xtmp~0 > 0; 563#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 564#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 566#L26-3 [2021-10-28 23:09:48,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1363889017, now seen corresponding path program 2 times [2021-10-28 23:09:48,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280896456] [2021-10-28 23:09:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,176 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,182 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,183 INFO L85 PathProgramCache]: Analyzing trace with hash -766658727, now seen corresponding path program 1 times [2021-10-28 23:09:48,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90106052] [2021-10-28 23:09:48,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,190 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:48,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1189119455, now seen corresponding path program 2 times [2021-10-28 23:09:48,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:48,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263104135] [2021-10-28 23:09:48,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:48,197 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:48,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,206 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:48,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:48,281 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:48,281 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:48,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:48,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:48,282 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:09:48,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:48,282 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:48,282 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:48,282 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2021-10-28 23:09:48,282 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:48,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:48,284 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 23:09:48,298 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 23:09:48,301 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 23:09:48,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:48,357 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:09:48,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:48,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:48,358 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:48,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:09:48,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:48,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:48,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:48,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:48,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:48,405 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:48,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:09:48,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:09:48,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:52,905 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:09:52,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:52,910 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:52,910 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:52,910 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:52,911 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:52,911 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:52,911 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,911 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:52,911 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:52,911 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2021-10-28 23:09:52,911 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:52,911 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:52,912 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 23:09:52,927 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 23:09:52,930 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 23:09:52,992 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:52,992 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:52,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:52,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:52,995 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:52,997 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 23:09:53,008 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:53,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:53,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:53,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:53,009 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:53,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:53,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:53,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:09:53,025 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:53,029 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 23:09:53,029 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:09:53,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:53,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:53,031 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:53,033 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:53,033 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:09:53,033 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:53,033 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0) = 1*ULTIMATE.start_main_~xtmp~0 Supporting invariants [] [2021-10-28 23:09:53,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:09:53,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:53,073 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:09:53,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:53,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:09:53,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:53,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:53,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:53,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-28 23:09:53,212 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:09:53,212 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:53,252 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 27 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 45 states and 54 transitions. Complement of second has 6 states. [2021-10-28 23:09:53,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-28 23:09:53,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2021-10-28 23:09:53,254 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,254 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 15 letters. Loop has 8 letters. [2021-10-28 23:09:53,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 16 letters. [2021-10-28 23:09:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:53,256 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 54 transitions. [2021-10-28 23:09:53,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:09:53,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 37 states and 45 transitions. [2021-10-28 23:09:53,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2021-10-28 23:09:53,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2021-10-28 23:09:53,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 45 transitions. [2021-10-28 23:09:53,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:09:53,260 INFO L681 BuchiCegarLoop]: Abstraction has 37 states and 45 transitions. [2021-10-28 23:09:53,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 45 transitions. [2021-10-28 23:09:53,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 28. [2021-10-28 23:09:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 27 states have internal predecessors, (34), 0 states have call successors, (0), 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 23:09:53,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2021-10-28 23:09:53,266 INFO L704 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-28 23:09:53,267 INFO L587 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2021-10-28 23:09:53,267 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:09:53,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 28 states and 34 transitions. [2021-10-28 23:09:53,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:09:53,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:09:53,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:09:53,269 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-28 23:09:53,269 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:09:53,269 INFO L791 eck$LassoCheckResult]: Stem: 701#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~tmp~0, main_~xtmp~0;havoc main_~x~0;havoc main_~y~0;havoc main_~tmp~0;havoc main_~xtmp~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 702#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 724#L17 assume !(0 == main_~y~0); 723#L21 assume !(main_~y~0 < 0); 721#L21-2 assume main_~xtmp~0 > 0; 719#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 716#L26-2 assume !(main_~xtmp~0 >= main_~y~0); 714#L26-3 main_~y~0 := main_~xtmp~0; 710#L25-1 main_~x~0 := main_~tmp~0; 708#L13-2 assume !!(main_~y~0 > 0 && main_~x~0 > 0);main_~tmp~0 := main_~y~0;main_~xtmp~0 := main_~x~0; 697#L17 assume !(0 == main_~y~0); 698#L21 assume !(main_~y~0 < 0); 706#L21-2 assume main_~xtmp~0 > 0; 703#L26-2 [2021-10-28 23:09:53,270 INFO L793 eck$LassoCheckResult]: Loop: 703#L26-2 assume !!(main_~xtmp~0 >= main_~y~0);main_~xtmp~0 := main_~xtmp~0 - main_~y~0; 703#L26-2 [2021-10-28 23:09:53,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:53,270 INFO L85 PathProgramCache]: Analyzing trace with hash -521667071, now seen corresponding path program 3 times [2021-10-28 23:09:53,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:53,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100900898] [2021-10-28 23:09:53,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:53,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,298 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,361 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:53,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2021-10-28 23:09:53,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:53,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359831160] [2021-10-28 23:09:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:53,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:53,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,366 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:53,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:53,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:53,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1008190016, now seen corresponding path program 4 times [2021-10-28 23:09:53,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:09:53,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455286445] [2021-10-28 23:09:53,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:09:53,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:09:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,389 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:09:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:09:53,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:53,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:09:53,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:53,555 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:53,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:53,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:53,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:53,556 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:09:53,556 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:53,556 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:53,556 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:53,556 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2021-10-28 23:09:53,556 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:53,556 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:53,558 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 23:09:53,561 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 23:09:53,592 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 23:09:53,594 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 23:09:53,597 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 23:09:53,600 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 23:09:53,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:53,698 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:09:53,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:53,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:53,717 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:53,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:09:53,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:53,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:53,738 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:09:53,739 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 23:09:53,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 23:09:53,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:53,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:53,760 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:53,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:09:53,762 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:09:53,762 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:53,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:53,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:53,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:53,805 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:53,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:09:53,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:09:53,807 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:09:54,005 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:09:54,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:54,008 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:09:54,008 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:09:54,008 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:09:54,008 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:09:54,008 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:09:54,009 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,009 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:09:54,009 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:09:54,009 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Lasso [2021-10-28 23:09:54,009 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:09:54,009 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:09:54,010 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 23:09:54,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:09:54,026 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 23:09:54,029 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 23:09:54,032 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 23:09:54,035 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 23:09:54,124 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:09:54,124 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:09:54,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,129 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,134 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 23:09:54,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,144 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:54,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,144 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,145 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:54,145 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:54,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:09:54,161 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:54,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:54,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,202 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:09:54,220 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,220 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:54,220 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,220 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,220 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,221 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:54,221 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:54,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:09:54,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:54,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:54,265 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,265 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:09:54,267 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 23:09:54,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,280 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:54,280 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:54,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:54,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:54,311 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,312 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:09:54,313 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 23:09:54,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:09:54,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:09:54,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:09:54,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:54,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 23:09:54,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,348 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:09:54,350 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 23:09:54,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:54,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:54,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:09:54,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 23:09:54,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,432 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,442 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 23:09:54,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:09:54,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:09:54,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:09:54,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:09:54,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:09:54,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 23:09:54,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:09:54,473 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:09:54,495 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-10-28 23:09:54,496 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 6 variables to zero. [2021-10-28 23:09:54,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:09:54,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:09:54,497 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:09:54,499 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:09:54,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:09:54,517 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2021-10-28 23:09:54,517 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:09:54,517 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~xtmp~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~xtmp~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2021-10-28 23:09:54,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:54,561 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 23:09:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,677 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,677 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 23:09:54,678 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 23:09:54,678 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,706 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 37 transitions. Complement of second has 6 states. [2021-10-28 23:09:54,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:54,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-10-28 23:09:54,712 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 13 letters. Loop has 1 letters. [2021-10-28 23:09:54,712 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:54,712 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:09:54,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,815 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,816 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 23:09:54,816 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 23:09:54,816 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,844 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 37 transitions. Complement of second has 6 states. [2021-10-28 23:09:54,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:54,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-10-28 23:09:54,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 13 letters. Loop has 1 letters. [2021-10-28 23:09:54,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:54,846 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 23:09:54,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:09:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:09:54,942 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:09:54,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:09:54,943 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 23:09:54,943 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 23:09:54,944 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,972 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 28 states and 34 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 32 states and 39 transitions. Complement of second has 5 states. [2021-10-28 23:09:54,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 23:09:54,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:09:54,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-10-28 23:09:54,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 1 letters. [2021-10-28 23:09:54,973 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:54,973 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 14 letters. Loop has 1 letters. [2021-10-28 23:09:54,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:54,974 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2021-10-28 23:09:54,974 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:09:54,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 39 transitions. [2021-10-28 23:09:54,975 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:09:54,975 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-10-28 23:09:54,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:09:54,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:09:54,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:09:54,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:09:54,975 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:54,975 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:54,976 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:09:54,976 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:09:54,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:09:54,976 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:09:54,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:09:54,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:09:54 BoogieIcfgContainer [2021-10-28 23:09:54,983 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:09:54,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:09:54,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:09:54,983 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:09:54,984 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:09:32" (3/4) ... [2021-10-28 23:09:54,986 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:09:54,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:09:54,988 INFO L168 Benchmark]: Toolchain (without parser) took 23435.09 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 68.1 MB in the beginning and 49.1 MB in the end (delta: 19.0 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:54,988 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:54,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.63 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 59.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:54,989 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.53 ms. Allocated memory is still 90.2 MB. Free memory was 59.3 MB in the beginning and 57.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:54,990 INFO L168 Benchmark]: Boogie Preprocessor took 34.14 ms. Allocated memory is still 90.2 MB. Free memory was 57.8 MB in the beginning and 56.9 MB in the end (delta: 976.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:54,990 INFO L168 Benchmark]: RCFGBuilder took 225.68 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 48.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:54,990 INFO L168 Benchmark]: BuchiAutomizer took 22935.58 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 48.7 MB in the beginning and 49.1 MB in the end (delta: -387.3 kB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:09:54,991 INFO L168 Benchmark]: Witness Printer took 3.60 ms. Allocated memory is still 134.2 MB. Free memory is still 49.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:09:54,992 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 199.63 ms. Allocated memory is still 90.2 MB. Free memory was 68.1 MB in the beginning and 59.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.53 ms. Allocated memory is still 90.2 MB. Free memory was 59.3 MB in the beginning and 57.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.14 ms. Allocated memory is still 90.2 MB. Free memory was 57.8 MB in the beginning and 56.9 MB in the end (delta: 976.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 225.68 ms. Allocated memory is still 90.2 MB. Free memory was 56.9 MB in the beginning and 48.9 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 22935.58 ms. Allocated memory was 90.2 MB in the beginning and 134.2 MB in the end (delta: 44.0 MB). Free memory was 48.7 MB in the beginning and 49.1 MB in the end (delta: -387.3 kB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. * Witness Printer took 3.60 ms. Allocated memory is still 134.2 MB. Free memory is still 49.1 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 7 terminating modules (2 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 6 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 6 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function 2 * xtmp + -2 * y + 1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.8s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 21.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 28 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 28 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 50 SDtfs, 101 SDslu, 15 SDs, 0 SdLazy, 179 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf90 smp93 dnf100 smp100 tf103 neg98 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 17.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:09:55,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:55,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:09:55,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cda1f2a8-4ae3-43ed-ac05-34b5ce586b84/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...