./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Collatz.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Collatz.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24b7e10190698e4022be968650337df07e87192188ebba57e38dae7824c717c2 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:38:33,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:38:33,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:38:33,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:38:33,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:38:33,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:38:33,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:38:33,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:38:33,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:38:33,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:38:33,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:38:33,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:38:33,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:38:33,960 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:38:33,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:38:33,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:38:33,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:38:33,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:38:33,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:38:33,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:38:33,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:38:33,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:38:33,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:38:33,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:38:33,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:38:33,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:38:34,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:38:34,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:38:34,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:38:34,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:38:34,006 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:38:34,007 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:38:34,009 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:38:34,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:38:34,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:38:34,013 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:38:34,014 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:38:34,014 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:38:34,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:38:34,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:38:34,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:38:34,018 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:38:34,048 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:38:34,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:38:34,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:38:34,049 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:38:34,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:38:34,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:38:34,050 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:38:34,051 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:38:34,051 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:38:34,051 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:38:34,051 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:38:34,051 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:38:34,052 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:38:34,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:38:34,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:38:34,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:38:34,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:38:34,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:38:34,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:38:34,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:38:34,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:38:34,054 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:38:34,054 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:38:34,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:38:34,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:38:34,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:38:34,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:38:34,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:38:34,055 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:38:34,056 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:38:34,057 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_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b7e10190698e4022be968650337df07e87192188ebba57e38dae7824c717c2 [2021-10-28 08:38:34,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:38:34,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:38:34,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:38:34,442 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:38:34,445 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:38:34,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted/Collatz.c [2021-10-28 08:38:34,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/data/d59c6f0e0/f59d58a637524ab18a9ad7c97f95b4c5/FLAG658599998 [2021-10-28 08:38:35,181 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:38:35,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/sv-benchmarks/c/termination-crafted/Collatz.c [2021-10-28 08:38:35,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/data/d59c6f0e0/f59d58a637524ab18a9ad7c97f95b4c5/FLAG658599998 [2021-10-28 08:38:35,561 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/data/d59c6f0e0/f59d58a637524ab18a9ad7c97f95b4c5 [2021-10-28 08:38:35,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:38:35,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:38:35,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:35,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:38:35,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:38:35,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396ff808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35, skipping insertion in model container [2021-10-28 08:38:35,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:38:35,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:38:35,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:35,890 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:38:35,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:38:35,923 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:38:35,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35 WrapperNode [2021-10-28 08:38:35,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:38:35,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:35,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:38:35,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:38:35,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:38:35,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:38:35,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:38:35,971 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:38:35,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,982 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,992 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:35,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:36,000 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:38:36,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:38:36,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:38:36,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:38:36,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (1/1) ... [2021-10-28 08:38:36,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:36,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:36,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:36,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:38:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:38:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:38:36,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:38:36,276 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 08:38:36,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:36 BoogieIcfgContainer [2021-10-28 08:38:36,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:38:36,279 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:38:36,279 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:38:36,283 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:38:36,284 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:36,285 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:38:35" (1/3) ... [2021-10-28 08:38:36,286 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4166bfb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:38:36, skipping insertion in model container [2021-10-28 08:38:36,286 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:36,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:38:35" (2/3) ... [2021-10-28 08:38:36,287 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4166bfb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:38:36, skipping insertion in model container [2021-10-28 08:38:36,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:38:36,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:36" (3/3) ... [2021-10-28 08:38:36,289 INFO L389 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2021-10-28 08:38:36,360 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:38:36,360 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:38:36,360 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:38:36,361 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:38:36,361 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:38:36,361 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:38:36,361 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:38:36,361 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:38:36,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:36,407 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:36,407 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:36,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:36,414 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:38:36,415 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:38:36,415 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:38:36,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:36,417 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:36,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:36,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:36,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 08:38:36,418 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:38:36,426 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L14-2true [2021-10-28 08:38:36,426 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~y~0 > 1); 6#L14true assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 8#L14-2true [2021-10-28 08:38:36,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:36,439 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 08:38:36,451 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:36,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972624971] [2021-10-28 08:38:36,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:36,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,547 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:36,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:36,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 08:38:36,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:36,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634316362] [2021-10-28 08:38:36,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:36,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,685 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:36,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:36,689 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 08:38:36,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:36,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557668915] [2021-10-28 08:38:36,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:36,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,720 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:36,747 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:36,889 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:36,890 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:36,891 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:36,891 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:36,891 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:36,891 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:36,892 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:36,892 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:36,892 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-10-28 08:38:36,892 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:36,893 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:36,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:37,059 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:37,060 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:37,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:37,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:37,110 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:37,110 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:37,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:38:37,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:37,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:37,185 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:37,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:37,188 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:37,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:38:37,274 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:37,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:37,284 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:37,284 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:37,284 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:37,284 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:37,285 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:37,285 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,285 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:37,285 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:37,285 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-10-28 08:38:37,285 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:37,286 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:37,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:37,394 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:37,400 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:37,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:37,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:37,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:38:37,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:37,454 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:37,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:37,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:37,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:37,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:37,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:37,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:37,482 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:38:37,491 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:38:37,492 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:38:37,493 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:37,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:37,501 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:38:37,501 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:38:37,502 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:38:37,502 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 08:38:37,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:38:37,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:37,559 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:38:37,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:37,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:37,605 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:37,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:37,625 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:37,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:37,674 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:38:37,676 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:37,725 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 8 states. [2021-10-28 08:38:37,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 08:38:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:37,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 08:38:37,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 08:38:37,731 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:37,731 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:38:37,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:37,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 08:38:37,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:37,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-28 08:38:37,737 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:37,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-28 08:38:37,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 08:38:37,742 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 08:38:37,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-28 08:38:37,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:38:37,744 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:38:37,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-28 08:38:37,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-28 08:38:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 08:38:37,791 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:38:37,791 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 08:38:37,791 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:38:37,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 08:38:37,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:37,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:37,799 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:37,800 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:38:37,800 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:38:37,816 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 69#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 70#L14-2 [2021-10-28 08:38:37,816 INFO L793 eck$LassoCheckResult]: Loop: 70#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 70#L14-2 [2021-10-28 08:38:37,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:37,817 INFO L85 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-28 08:38:37,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:37,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151606914] [2021-10-28 08:38:37,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:37,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:37,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,829 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:37,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,838 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-28 08:38:37,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:37,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998690033] [2021-10-28 08:38:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:37,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,849 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,858 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:37,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-10-28 08:38:37,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:37,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794294231] [2021-10-28 08:38:37,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:37,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:37,892 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:37,933 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:37,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:37,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:37,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:37,934 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:37,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:37,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:37,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:37,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-10-28 08:38:37,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:37,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:37,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:38,049 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:38,050 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:38,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 08:38:38,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:38:38,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:38,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:38,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:38,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:38:38,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:38,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:38,196 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:38,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:38,200 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:38,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:38,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:38,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:38,200 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:38,200 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,200 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:38,200 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:38,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-10-28 08:38:38,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:38,201 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:38,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:38,264 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:38,264 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:38,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,266 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,273 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:38,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:38,284 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:38,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:38,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:38,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:38,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:38,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:38,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:38:38,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:38:38,310 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:38:38,310 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:38:38,310 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,312 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:38:38,316 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:38:38,317 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:38:38,317 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:38:38,317 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 08:38:38,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:38,345 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:38:38,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:38,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:38,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:38,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:38,398 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:38,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:38,445 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:38:38,445 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:38,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-28 08:38:38,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:38:38,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:38,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:38:38,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 08:38:38,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:38,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:38:38,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:38,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-28 08:38:38,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:38,473 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-28 08:38:38,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:38,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 08:38:38,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-28 08:38:38,479 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 08:38:38,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-28 08:38:38,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:38:38,479 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:38:38,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-28 08:38:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-28 08:38:38,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-28 08:38:38,483 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:38:38,483 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-28 08:38:38,483 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:38:38,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-10-28 08:38:38,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 08:38:38,486 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:38,486 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:38,486 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-10-28 08:38:38,486 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 08:38:38,487 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 123#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 124#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 127#L14-2 [2021-10-28 08:38:38,487 INFO L793 eck$LassoCheckResult]: Loop: 127#L14-2 assume !!(main_~y~0 > 1); 128#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 127#L14-2 [2021-10-28 08:38:38,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-10-28 08:38:38,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:38,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272030398] [2021-10-28 08:38:38,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:38,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:38,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:38:38,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272030398] [2021-10-28 08:38:38,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272030398] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:38:38,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326330902] [2021-10-28 08:38:38,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:38:38,690 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:38:38,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,696 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 08:38:38,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:38:38,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:38:38,733 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:38:38,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:38,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326330902] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:38:38,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:38:38,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-28 08:38:38,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134530113] [2021-10-28 08:38:38,836 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:38:38,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:38,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-28 08:38:38,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:38,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136024305] [2021-10-28 08:38:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:38,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:38,846 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:38,853 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:38,883 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:38,883 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:38,884 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:38,884 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:38,884 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:38,884 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,884 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:38,884 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:38,884 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-10-28 08:38:38,885 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:38,885 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:38,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:38,942 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:38,942 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:38,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:38,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:38,989 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:38,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:38,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:39,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:38:39,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:39,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:39,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:39,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:39,093 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:39,093 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:38:39,186 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:39,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-28 08:38:39,193 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:39,193 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:39,193 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:39,193 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:39,193 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:39,193 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:39,193 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:39,193 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:39,193 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-10-28 08:38:39,193 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:39,193 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:39,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:39,272 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:39,272 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:39,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:39,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:39,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:39,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:39,295 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:39,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:39,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:39,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:39,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:39,298 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:39,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:39,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:38:39,312 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:38:39,317 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 08:38:39,317 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 08:38:39,318 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:39,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:39,322 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:39,329 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:38:39,329 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:38:39,329 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:38:39,329 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 08:38:39,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:38:39,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:39,376 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:38:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,433 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:39,470 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:38:39,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,493 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 08:38:39,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:38:39,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:38:39,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:38:39,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:39,497 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:38:39,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,538 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:39,557 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:38:39,557 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,569 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-10-28 08:38:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:38:39,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-28 08:38:39,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:38:39,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:39,571 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:38:39,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:38:39,651 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:38:39,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:38:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:38:39,672 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 08:38:39,672 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,686 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-10-28 08:38:39,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:39,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 08:38:39,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 08:38:39,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-28 08:38:39,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:39,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-28 08:38:39,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:39,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-10-28 08:38:39,718 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:38:39,718 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-10-28 08:38:39,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:38:39,723 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-10-28 08:38:39,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-28 08:38:39,724 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-28 08:38:39,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-10-28 08:38:39,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:38:39,725 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-10-28 08:38:39,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-10-28 08:38:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-10-28 08:38:39,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-10-28 08:38:39,728 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-10-28 08:38:39,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:38:39,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:38:39,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:38:39,749 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 08:38:39,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:39,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:38:39,784 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2021-10-28 08:38:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:38:39,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-10-28 08:38:39,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-10-28 08:38:39,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-10-28 08:38:39,786 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 08:38:39,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 08:38:39,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 08:38:39,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:38:39,786 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 08:38:39,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 08:38:39,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-10-28 08:38:39,787 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 08:38:39,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-28 08:38:39,787 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 08:38:39,788 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-28 08:38:39,788 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:38:39,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-10-28 08:38:39,788 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-28 08:38:39,788 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:38:39,788 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:38:39,789 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 08:38:39,789 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-28 08:38:39,789 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 08:38:39,789 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 08:38:39,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 08:38:39,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:39,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19260642] [2021-10-28 08:38:39,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:39,790 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,794 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:39,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-10-28 08:38:39,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:39,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989645181] [2021-10-28 08:38:39,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:39,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,835 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:39,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,861 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:39,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:39,862 INFO L85 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2021-10-28 08:38:39,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:39,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084372048] [2021-10-28 08:38:39,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:39,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,874 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:39,898 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:39,971 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:39,971 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:39,972 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:39,972 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:39,972 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:39,972 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:39,972 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:39,972 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:39,972 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 08:38:39,972 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:39,972 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:39,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:40,048 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:40,048 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:40,048 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,049 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,057 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:40,057 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:40,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:38:40,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,132 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:40,134 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:40,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:38:40,233 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:40,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,236 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:40,236 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:40,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:40,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:40,237 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:40,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:40,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:40,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 08:38:40,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:40,237 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:40,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:40,342 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:40,342 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:40,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,343 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,355 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:38:40,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:40,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:40,368 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:40,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2021-10-28 08:38:40,401 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 08:38:40,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,402 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:38:40,407 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,416 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:40,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,417 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:40,420 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:40,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-28 08:38:40,452 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 08:38:40,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,453 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:38:40,455 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:40,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,464 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:40,468 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:40,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,477 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,500 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 08:38:40,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,501 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:38:40,508 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:40,517 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,518 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:40,523 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:40,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,535 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 08:38:40,559 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 08:38:40,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,560 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:38:40,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,573 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:40,573 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:40,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,574 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,574 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:40,579 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:40,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,632 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 08:38:40,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,635 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:38:40,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,651 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:40,651 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:40,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,652 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:40,657 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:40,658 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,696 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,727 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 08:38:40,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,728 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:38:40,730 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,739 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:40,739 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:40,739 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,739 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:40,749 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:40,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,825 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 08:38:40,825 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,826 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,845 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:40,846 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:40,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,846 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:40,850 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:40,850 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:38:40,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:40,904 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 08:38:40,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:40,906 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:40,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:40,919 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:40,919 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:40,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:40,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:40,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:40,919 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:40,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:40,926 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:40,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:38:40,948 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:40,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 08:38:40,982 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:40,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:40,983 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:40,983 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:40,983 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:40,983 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:40,983 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:40,983 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:40,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 08:38:40,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:40,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:40,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:40,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:40,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:41,072 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:41,072 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:41,072 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,073 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:41,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:41,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:38:41,087 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:38:41,087 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 08:38:41,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,109 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,110 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:38:41,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:41,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:41,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,165 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,166 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:38:41,169 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:41,169 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:41,306 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:41,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,313 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:41,313 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:41,314 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:41,314 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:41,314 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:41,314 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,314 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:41,314 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:41,314 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 08:38:41,314 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:41,314 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:41,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:41,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:41,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:41,435 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:41,435 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:41,435 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,436 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:38:41,446 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,456 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:41,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:41,463 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:38:41,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,524 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,538 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:41,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:41,539 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:41,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:41,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:38:41,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,596 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:41,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:41,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:41,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:41,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:38:41,628 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,672 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 08:38:41,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,673 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,675 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:38:41,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,685 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:41,692 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 08:38:41,692 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 08:38:41,716 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:41,761 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,764 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,770 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,781 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:41,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,782 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,782 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:41,782 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:41,782 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:41,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:38:41,800 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 08:38:41,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,827 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:38:41,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,840 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:41,840 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,840 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:41,842 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:41,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:41,844 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2021-10-28 08:38:41,867 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 08:38:41,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,869 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:38:41,879 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,880 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,880 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,880 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:41,888 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:41,888 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:41,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-10-28 08:38:41,945 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,946 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,948 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:41,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:38:41,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:41,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:41,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:41,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:41,957 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:41,958 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:41,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:41,970 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:41,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 08:38:41,996 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:41,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:41,996 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:41,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:38:41,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:42,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,006 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:42,007 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:42,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-10-28 08:38:42,032 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 08:38:42,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,033 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:38:42,035 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:42,043 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,044 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,055 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 08:38:42,055 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 08:38:42,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2021-10-28 08:38:42,110 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,111 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:38:42,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:42,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,122 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,123 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:42,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,144 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,181 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,184 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:42,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,205 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,206 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:42,206 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:38:42,224 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,267 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 08:38:42,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,269 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,271 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,282 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,282 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:42,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,283 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:42,294 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 08:38:42,294 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 08:38:42,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 08:38:42,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,357 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,358 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,360 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:38:42,372 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,372 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:42,372 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,372 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,373 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:42,373 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:42,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,438 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,452 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,452 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:42,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,452 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,452 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:42,453 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:42,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 08:38:42,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,508 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 08:38:42,508 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,509 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,524 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,524 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:42,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,525 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:42,546 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:42,546 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:42,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:38:42,579 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 08:38:42,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,611 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 08:38:42,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,624 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,624 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:42,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,625 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:42,626 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:42,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,646 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2021-10-28 08:38:42,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,687 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 08:38:42,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,704 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,704 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:42,704 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,704 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:42,705 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:42,706 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,730 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 08:38:42,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,731 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 08:38:42,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,741 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,741 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:42,741 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,741 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,741 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,752 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 08:38:42,753 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 08:38:42,828 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,863 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,865 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 08:38:42,867 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,875 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,875 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:42,875 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,876 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,878 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:42,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:42,940 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,942 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,944 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:42,955 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:42,955 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:42,956 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:42,956 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:42,956 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:42,956 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:42,958 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:42,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:42,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 08:38:42,972 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:42,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 08:38:42,995 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 08:38:42,995 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:42,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:42,996 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:42,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 08:38:42,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,006 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,007 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:43,007 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,007 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,007 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:43,014 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:43,014 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:43,044 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:43,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,084 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,093 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,103 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,103 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:43,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,104 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:43,105 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:43,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:43,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 08:38:43,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 08:38:43,146 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,147 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 08:38:43,158 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,166 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,167 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:43,167 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,167 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:43,168 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:43,168 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:43,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-28 08:38:43,194 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 08:38:43,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,195 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 08:38:43,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,206 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,206 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:43,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,206 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:43,224 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-28 08:38:43,225 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-28 08:38:43,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:43,293 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,294 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 08:38:43,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,304 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,304 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:43,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,305 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:43,306 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:43,306 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:43,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-10-28 08:38:43,331 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,332 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 08:38:43,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,341 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:43,342 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:43,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,342 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:43,343 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:43,343 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:43,346 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-10-28 08:38:43,367 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-10-28 08:38:43,367 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 08:38:43,367 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-10-28 08:38:43,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:43,368 INFO L85 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-10-28 08:38:43,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:43,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157326984] [2021-10-28 08:38:43,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:43,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,380 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,390 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:43,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:43,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2021-10-28 08:38:43,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:43,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479486979] [2021-10-28 08:38:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:43,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,401 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,409 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:43,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:38:43,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-10-28 08:38:43,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:38:43,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230017592] [2021-10-28 08:38:43,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:38:43,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:38:43,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,430 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:38:43,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:38:43,452 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:38:43,496 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:43,496 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:43,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:43,497 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:43,497 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:43,497 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,497 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:43,497 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:43,497 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 08:38:43,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:43,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:43,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:43,575 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:43,575 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:43,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,576 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:43,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:43,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 08:38:43,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:43,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,673 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:43,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:43,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 08:38:43,816 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:43,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:43,821 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:43,821 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:43,821 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:43,821 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:43,821 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:43,821 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,821 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:43,821 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:43,821 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-10-28 08:38:43,821 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:43,822 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:43,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:43,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:43,907 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:43,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,912 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,918 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:43,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,929 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:43,931 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:43,931 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:43,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 08:38:43,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:43,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:43,983 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 08:38:43,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:43,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:43,984 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:43,987 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:43,998 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:43,998 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:43,998 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:43,998 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:43,998 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:44,001 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:44,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 08:38:44,024 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,061 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 08:38:44,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,062 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:44,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,076 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:44,080 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:44,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 08:38:44,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,132 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 08:38:44,133 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,134 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,137 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,148 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:44,148 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,148 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,148 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,148 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:44,152 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:44,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 08:38:44,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,210 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 08:38:44,210 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,213 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,227 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:44,227 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:44,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,228 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:44,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 08:38:44,230 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:44,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,248 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,284 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 08:38:44,285 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,286 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,289 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 08:38:44,297 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:44,297 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:44,297 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,298 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:44,300 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:44,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,336 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 08:38:44,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,338 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 08:38:44,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,349 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:44,349 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:44,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,350 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:44,354 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:44,354 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,377 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-10-28 08:38:44,400 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 08:38:44,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,401 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 08:38:44,402 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,410 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:44,410 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:44,410 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,410 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,410 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,411 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:44,415 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:44,415 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,424 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-10-28 08:38:44,448 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 08:38:44,448 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,449 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 08:38:44,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:44,459 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:44,459 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:44,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:44,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:44,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:44,459 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:44,464 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:44,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:44,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:44,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,711 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:44,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:44,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:44,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:44,711 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:38:44,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:44,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:44,711 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 08:38:44,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:44,712 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:44,712 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:38:44,712 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:38:44,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:44,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:44,717 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:44,876 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:44,876 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:38:44,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,878 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:44,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:44,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 08:38:44,901 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:38:44,901 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 08:38:44,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 08:38:44,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,936 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 08:38:44,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:44,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:44,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:38:44,946 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 08:38:44,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:44,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:44,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:44,969 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:44,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 08:38:44,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:38:44,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:45,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,010 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,011 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 08:38:45,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:38:45,013 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:38:45,122 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:38:45,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,125 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:38:45,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:38:45,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:38:45,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:38:45,125 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:38:45,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:38:45,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:38:45,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-10-28 08:38:45,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:38:45,126 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:38:45,126 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:38:45,126 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:38:45,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:45,145 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 08:38:45,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:38:45,296 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:38:45,297 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:38:45,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,298 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 08:38:45,299 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,308 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,308 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:45,309 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:45,309 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,316 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-10-28 08:38:45,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,340 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 08:38:45,342 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,350 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,350 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,350 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:45,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:38:45,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,352 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,378 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 08:38:45,379 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,388 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:38:45,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:45,392 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 08:38:45,398 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,423 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 08:38:45,423 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,424 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 08:38:45,433 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,441 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,442 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:45,442 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:45,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,468 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 08:38:45,469 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,478 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:45,479 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:45,479 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,504 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 08:38:45,506 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,515 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:45,521 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 08:38:45,521 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 08:38:45,530 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 08:38:45,555 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 08:38:45,555 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,557 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 08:38:45,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,569 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,569 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:45,570 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:45,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,571 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,595 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,596 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 08:38:45,597 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,607 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:45,608 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:45,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,632 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 08:38:45,661 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,662 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 08:38:45,664 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,676 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,676 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:45,698 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:45,699 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:45,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,824 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 08:38:45,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,827 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,830 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,843 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:45,844 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:45,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 08:38:45,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,887 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 08:38:45,889 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:45,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,901 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:45,902 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:45,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:45,912 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:45,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:45,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:45,956 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:45,959 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:45,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:38:45,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:45,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:45,971 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:45,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 08:38:45,983 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 08:38:45,983 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 08:38:46,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,050 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 08:38:46,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,052 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,057 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,069 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,069 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,070 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:46,071 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:46,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-10-28 08:38:46,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,130 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,134 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 08:38:46,146 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,146 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,146 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,146 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:46,147 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 08:38:46,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-10-28 08:38:46,160 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,203 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,212 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,225 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,225 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,225 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 08:38:46,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 08:38:46,233 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 08:38:46,233 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 08:38:46,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-10-28 08:38:46,298 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 08:38:46,298 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,299 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 08:38:46,303 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,313 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,313 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:46,313 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,313 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,313 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,314 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:46,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,317 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-10-28 08:38:46,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,343 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 08:38:46,346 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,355 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,356 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:46,356 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,356 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,356 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,356 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,357 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:46,357 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,360 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-10-28 08:38:46,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,385 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,421 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,421 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 08:38:46,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,422 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 08:38:46,432 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:46,432 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:46,474 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2021-10-28 08:38:46,519 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 08:38:46,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,520 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,525 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,538 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,538 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:46,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,538 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:46,540 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:46,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 08:38:46,561 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2021-10-28 08:38:46,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,586 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 08:38:46,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,597 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,597 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:46,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,598 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,598 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,598 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:46,599 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 08:38:46,599 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,650 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,652 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,672 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,672 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:46,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,673 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 08:38:46,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 08:38:46,685 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-28 08:38:46,685 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-28 08:38:46,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-10-28 08:38:46,763 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 08:38:46,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,764 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,766 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 08:38:46,775 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,775 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,775 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,776 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:46,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,778 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,802 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,803 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 08:38:46,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,813 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,814 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,814 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,815 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 08:38:46,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,841 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 08:38:46,842 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,852 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,852 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 08:38:46,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,852 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 08:38:46,861 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-28 08:38:46,861 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:38:46,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:46,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:46,947 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 08:38:46,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:46,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:46,948 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:46,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:46,968 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:46,969 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:46,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:46,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:46,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:46,969 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:46,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:46,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:46,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-10-28 08:38:46,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:47,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:47,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:47,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:47,027 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:47,028 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:47,040 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:47,040 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:47,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:38:47,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:47,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:47,040 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:47,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 08:38:47,042 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:38:47,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-10-28 08:38:47,056 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:47,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:47,096 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:38:47,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:38:47,100 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:38:47,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 08:38:47,114 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 08:38:47,114 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 08:38:47,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:38:47,114 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:38:47,114 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 08:38:47,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-10-28 08:38:47,129 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-28 08:38:47,129 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-28 08:38:47,172 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:38:47,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:47,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:38:47 BoogieIcfgContainer [2021-10-28 08:38:47,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:38:47,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:38:47,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:38:47,221 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:38:47,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:38:36" (3/4) ... [2021-10-28 08:38:47,225 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:38:47,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:38:47,228 INFO L168 Benchmark]: Toolchain (without parser) took 11656.56 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 55.7 MB in the beginning and 95.3 MB in the end (delta: -39.7 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:47,229 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:47,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.64 ms. Allocated memory is still 86.0 MB. Free memory was 55.5 MB in the beginning and 64.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:47,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:47,231 INFO L168 Benchmark]: Boogie Preprocessor took 30.37 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 61.9 MB in the end (delta: 881.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:47,231 INFO L168 Benchmark]: RCFGBuilder took 276.45 ms. Allocated memory is still 86.0 MB. Free memory was 61.9 MB in the beginning and 54.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:47,232 INFO L168 Benchmark]: BuchiAutomizer took 10940.59 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 54.5 MB in the beginning and 95.3 MB in the end (delta: -40.9 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:38:47,232 INFO L168 Benchmark]: Witness Printer took 4.71 ms. Allocated memory is still 134.2 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:38:47,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory is still 44.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.64 ms. Allocated memory is still 86.0 MB. Free memory was 55.5 MB in the beginning and 64.2 MB in the end (delta: -8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.23 ms. Allocated memory is still 86.0 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.37 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 61.9 MB in the end (delta: 881.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 276.45 ms. Allocated memory is still 86.0 MB. Free memory was 61.9 MB in the beginning and 54.5 MB in the end (delta: 7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 10940.59 ms. Allocated memory was 86.0 MB in the beginning and 134.2 MB in the end (delta: 48.2 MB). Free memory was 54.5 MB in the beginning and 95.3 MB in the end (delta: -40.9 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.71 ms. Allocated memory is still 134.2 MB. Free memory is still 95.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 9.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 20 SDslu, 6 SDs, 0 SdLazy, 44 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div517 bol100 ite100 ukn100 eq125 hnf42 smp72 dnf100 smp100 tf105 neg99 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 76ms VariablesStem: 4 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer is unable to decide termination for the following lasso. Stem: "havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;" "assume !!(main_~y~0 > 1);" "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" Loop: "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" RESULT: Ultimate could not prove your program: unable to determine termination [2021-10-28 08:38:47,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:38:47,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a3526af-6cf1-4141-a279-a9d54a735c08/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...