./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Collatz.c -s /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 873a06533d36987711ab5e2c177066aa117a2df5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/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 0.2.0-a4ecdab [2020-11-29 23:55:18,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:55:18,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:55:18,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:55:18,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:55:18,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:55:18,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:55:18,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:55:18,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:55:18,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:55:18,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:55:18,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:55:18,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:55:18,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:55:18,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:55:18,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:55:18,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:55:18,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:55:18,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:55:18,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:55:18,176 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:55:18,177 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:55:18,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:55:18,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:55:18,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:55:18,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:55:18,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:55:18,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:55:18,193 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:55:18,194 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:55:18,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:55:18,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:55:18,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:55:18,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:55:18,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:55:18,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:55:18,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:55:18,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:55:18,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:55:18,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:55:18,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:55:18,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:55:18,249 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:55:18,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:55:18,251 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:55:18,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:55:18,252 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:55:18,252 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:55:18,252 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:55:18,253 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:55:18,253 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:55:18,253 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:55:18,254 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:55:18,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:55:18,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:55:18,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:55:18,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:55:18,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:55:18,256 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:55:18,256 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:55:18,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:55:18,257 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:55:18,257 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:55:18,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:55:18,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:55:18,258 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:55:18,258 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:55:18,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:55:18,259 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:55:18,259 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:55:18,259 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:55:18,262 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:55:18,262 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 873a06533d36987711ab5e2c177066aa117a2df5 [2020-11-29 23:55:18,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:55:18,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:55:18,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:55:18,545 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:55:18,546 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:55:18,546 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Collatz.c [2020-11-29 23:55:18,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/data/e7a33887c/f372d0e27b9441cab02f29e4a9837527/FLAG3d0334921 [2020-11-29 23:55:19,127 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:55:19,127 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/sv-benchmarks/c/termination-crafted/Collatz.c [2020-11-29 23:55:19,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/data/e7a33887c/f372d0e27b9441cab02f29e4a9837527/FLAG3d0334921 [2020-11-29 23:55:19,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/data/e7a33887c/f372d0e27b9441cab02f29e4a9837527 [2020-11-29 23:55:19,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:55:19,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:55:19,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:19,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:55:19,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:55:19,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785574d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19, skipping insertion in model container [2020-11-29 23:55:19,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:55:19,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:55:19,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:19,796 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:55:19,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:55:19,825 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:55:19,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19 WrapperNode [2020-11-29 23:55:19,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:55:19,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:19,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:55:19,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:55:19,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:55:19,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:55:19,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:55:19,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:55:19,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... [2020-11-29 23:55:19,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:55:19,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:55:19,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:55:19,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:55:19,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:55:19,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:55:20,096 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:55:20,096 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 23:55:20,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:20 BoogieIcfgContainer [2020-11-29 23:55:20,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:55:20,099 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:55:20,099 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:55:20,103 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:55:20,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:20,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:55:19" (1/3) ... [2020-11-29 23:55:20,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2317604b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:20, skipping insertion in model container [2020-11-29 23:55:20,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:20,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:55:19" (2/3) ... [2020-11-29 23:55:20,106 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2317604b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:55:20, skipping insertion in model container [2020-11-29 23:55:20,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:55:20,106 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:20" (3/3) ... [2020-11-29 23:55:20,108 INFO L373 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2020-11-29 23:55:20,175 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:55:20,176 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:55:20,176 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:55:20,176 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:55:20,176 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:55:20,176 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:55:20,176 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:55:20,176 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:55:20,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 23:55:20,206 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:20,206 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:20,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:20,212 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 23:55:20,212 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:55:20,212 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:55:20,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-11-29 23:55:20,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:20,213 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:20,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:20,214 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 23:55:20,214 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:55:20,223 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L14-2true [2020-11-29 23:55:20,223 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~y~0 > 1); 8#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); 5#L14-2true [2020-11-29 23:55:20,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:20,230 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 23:55:20,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:20,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906125213] [2020-11-29 23:55:20,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,316 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,332 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:20,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:20,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-11-29 23:55:20,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:20,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822614713] [2020-11-29 23:55:20,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:20,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,402 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:20,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:20,413 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-11-29 23:55:20,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:20,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193779978] [2020-11-29 23:55:20,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:20,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,427 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:20,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:20,453 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:20,665 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 11 [2020-11-29 23:55:20,690 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:20,690 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:20,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:20,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:20,691 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:20,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:20,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:20,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:20,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-11-29 23:55:20,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:20,693 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:20,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:20,845 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:20,845 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:20,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:20,862 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:20,894 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:20,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:20,932 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:20,934 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:20,934 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:20,934 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:20,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:20,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:20,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:20,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:20,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:20,935 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-11-29 23:55:20,935 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:20,935 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:20,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:21,214 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2020-11-29 23:55:21,257 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:21,260 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:21,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:21,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:21,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:21,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:21,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:21,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:21,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:21,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:21,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:55:21,288 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:55:21,289 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:21,326 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:55:21,326 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:55:21,327 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:55:21,327 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:21,360 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:55:21,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:21,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:21,414 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:21,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:21,430 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:55:21,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:21,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:21,472 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 23:55:21,473 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-11-29 23:55:21,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2020-11-29 23:55:21,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:55:21,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-11-29 23:55:21,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-11-29 23:55:21,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:21,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-29 23:55:21,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:21,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-11-29 23:55:21,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:21,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-11-29 23:55:21,542 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:21,548 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-11-29 23:55:21,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-29 23:55:21,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-29 23:55:21,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-11-29 23:55:21,550 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:55:21,550 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:55:21,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-11-29 23:55:21,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-29 23:55:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 23:55:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-11-29 23:55:21,578 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:55:21,578 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:55:21,578 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:55:21,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-11-29 23:55:21,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:21,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:21,580 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:21,580 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:55:21,580 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:55:21,581 INFO L794 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); 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 := 1 + 3 * main_~y~0; 69#L14-2 [2020-11-29 23:55:21,581 INFO L796 eck$LassoCheckResult]: Loop: 69#L14-2 assume !!(main_~y~0 > 1); 70#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); 69#L14-2 [2020-11-29 23:55:21,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:21,582 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2020-11-29 23:55:21,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:21,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784995178] [2020-11-29 23:55:21,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,600 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,614 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,618 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:21,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:21,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2020-11-29 23:55:21,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:21,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999681214] [2020-11-29 23:55:21,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,635 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,655 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:21,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:21,656 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2020-11-29 23:55:21,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:21,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659517324] [2020-11-29 23:55:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:21,710 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:21,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:21,811 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:21,811 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:21,812 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:21,812 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:21,812 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:21,812 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:21,812 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:21,812 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:21,812 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-11-29 23:55:21,812 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:21,812 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:21,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:21,930 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:21,930 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:21,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:21,938 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:21,981 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:21,981 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:22,035 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:22,037 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:22,037 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:22,037 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:22,037 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:22,037 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:22,037 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,037 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:22,037 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:22,037 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-11-29 23:55:22,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:22,038 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:22,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:22,119 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:22,119 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,126 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:22,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:22,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:22,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:22,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:22,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:22,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:22,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:22,135 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:55:22,141 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:55:22,141 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:22,148 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:55:22,148 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:55:22,148 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:55:22,148 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,183 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:55:22,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:22,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:22,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:22,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:22,230 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:55:22,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:22,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:22,250 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 23:55:22,250 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-29 23:55:22,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2020-11-29 23:55:22,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:55:22,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 23:55:22,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-29 23:55:22,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:22,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 23:55:22,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:22,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-29 23:55:22,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:22,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-11-29 23:55:22,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:22,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2020-11-29 23:55:22,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 23:55:22,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 23:55:22,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-11-29 23:55:22,276 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:55:22,276 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-29 23:55:22,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-11-29 23:55:22,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-29 23:55:22,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 23:55:22,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-11-29 23:55:22,278 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-29 23:55:22,278 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-11-29 23:55:22,278 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:55:22,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-11-29 23:55:22,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-29 23:55:22,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:22,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:22,279 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2020-11-29 23:55:22,279 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-29 23:55:22,280 INFO L794 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); 127#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; 128#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; 123#L14-2 [2020-11-29 23:55:22,280 INFO L796 eck$LassoCheckResult]: Loop: 123#L14-2 assume !!(main_~y~0 > 1); 124#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); 123#L14-2 [2020-11-29 23:55:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2020-11-29 23:55:22,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:22,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917089072] [2020-11-29 23:55:22,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:22,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917089072] [2020-11-29 23:55:22,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239104654] [2020-11-29 23:55:22,411 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:55:22,431 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-29 23:55:22,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-29 23:55:22,432 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:55:22,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:22,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 23:55:22,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-11-29 23:55:22,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931270909] [2020-11-29 23:55:22,522 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:55:22,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:22,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2020-11-29 23:55:22,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:22,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532519821] [2020-11-29 23:55:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:22,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:22,547 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:22,548 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:22,624 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:22,624 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:22,624 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:22,624 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:22,625 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:22,625 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,625 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:22,625 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:22,625 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-11-29 23:55:22,625 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:22,625 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:22,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:22,721 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:22,721 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:22,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:22,729 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:22,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:22,776 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,841 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:22,843 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:22,843 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:22,843 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:22,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:22,844 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:22,844 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,844 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:22,844 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:22,844 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-11-29 23:55:22,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:22,844 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:22,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:22,927 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:22,927 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:22,937 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:22,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:22,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:22,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:22,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:22,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:22,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:22,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,945 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:55:22,949 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:55:22,949 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:22,956 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:55:22,956 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:55:22,956 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:55:22,956 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:22,987 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:55:23,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,025 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:23,040 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-29 23:55:23,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-29 23:55:23,059 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-11-29 23:55:23,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:23,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:55:23,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 23:55:23,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 23:55:23,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:23,061 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:55:23,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,097 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:23,110 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 [2020-11-29 23:55:23,110 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-29 23:55:23,128 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-11-29 23:55:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:23,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:55:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-29 23:55:23,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 23:55:23,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:23,131 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:55:23,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:55:23,164 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:55:23,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:55:23,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:55:23,177 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 [2020-11-29 23:55:23,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-11-29 23:55:23,198 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2020-11-29 23:55:23,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 23:55:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:55:23,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-11-29 23:55:23,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-29 23:55:23,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:23,200 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-29 23:55:23,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:23,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-29 23:55:23,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:55:23,201 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2020-11-29 23:55:23,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:55:23,202 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2020-11-29 23:55:23,202 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-29 23:55:23,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 23:55:23,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2020-11-29 23:55:23,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:55:23,203 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-11-29 23:55:23,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2020-11-29 23:55:23,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2020-11-29 23:55:23,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:55:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-11-29 23:55:23,203 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-11-29 23:55:23,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:55:23,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:55:23,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 23:55:23,206 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 4 states. [2020-11-29 23:55:23,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:55:23,243 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2020-11-29 23:55:23,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:55:23,244 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-11-29 23:55:23,244 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-11-29 23:55:23,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-11-29 23:55:23,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-11-29 23:55:23,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-11-29 23:55:23,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-11-29 23:55:23,245 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:55:23,245 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-29 23:55:23,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-11-29 23:55:23,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-11-29 23:55:23,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 23:55:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-11-29 23:55:23,246 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 23:55:23,246 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 23:55:23,247 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:55:23,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-11-29 23:55:23,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 23:55:23,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:55:23,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:55:23,247 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:55:23,248 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-11-29 23:55:23,248 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-11-29 23:55:23,248 INFO L796 eck$LassoCheckResult]: Loop: 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 := 1 + 3 * main_~y~0; 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 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-11-29 23:55:23,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-29 23:55:23,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:23,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106517316] [2020-11-29 23:55:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,258 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:23,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2020-11-29 23:55:23,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:23,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486352693] [2020-11-29 23:55:23,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,294 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,297 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:23,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:23,301 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2020-11-29 23:55:23,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:23,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563520364] [2020-11-29 23:55:23,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:23,320 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:23,322 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:23,442 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:23,442 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:23,443 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:23,443 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:23,443 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:23,443 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:23,443 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:23,443 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:23,443 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-11-29 23:55:23,443 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:23,443 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:23,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:23,620 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-11-29 23:55:23,646 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:23,647 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:23,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:23,654 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:23,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:23,701 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:23,831 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:23,832 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:23,833 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:23,833 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:23,833 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:23,833 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:23,833 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:23,833 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:23,833 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:23,833 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-11-29 23:55:23,833 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:23,833 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:23,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:23,931 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:23,931 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:23,934 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:23,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:23,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:23,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:23,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:23,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:23,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:23,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:23,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:23,977 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:23,986 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:23,988 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:23,988 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:23,988 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:23,988 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:23,988 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:23,992 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:23,992 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,000 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,035 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,042 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,043 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:24,044 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,044 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,044 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:24,049 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:24,049 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,057 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,091 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:24,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,112 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:24,121 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:24,123 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,129 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,159 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,169 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:24,169 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:24,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,169 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:24,174 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:24,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:24,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,218 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,227 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,229 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:24,229 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:24,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,230 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:24,240 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:24,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,293 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,304 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:24,304 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:24,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,305 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:24,315 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:24,315 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,342 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,375 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:24,380 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:24,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,380 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:24,384 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:24,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:24,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,428 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:24,434 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:24,434 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:24,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:24,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:24,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:24,435 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:24,447 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:24,448 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:24,507 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:24,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:24,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:24,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:24,507 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:24,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:24,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:24,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-11-29 23:55:24,507 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:24,507 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:24,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:24,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:24,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:24,633 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:24,633 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,641 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:24,641 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,647 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:55:24,647 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:24,712 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:24,712 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:24,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:24,922 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:24,923 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:24,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:24,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:24,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:24,924 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:24,924 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:24,924 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:24,924 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:24,924 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-11-29 23:55:24,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:24,924 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:24,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:24,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:24,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:25,058 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:25,059 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,062 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:25,068 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:25,068 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:55:25,074 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,099 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:25,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:25,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:25,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:25,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:25,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:25,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:25,152 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,156 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,164 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 23:55:25,164 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-29 23:55:25,192 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,287 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,288 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:25,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:25,304 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,358 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,361 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:25,361 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,363 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:25,397 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,401 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,404 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:25,415 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:25,415 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,465 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,467 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,468 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:25,469 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:25,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,507 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:25,507 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:25,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:25,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:25,532 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,537 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:25,549 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 23:55:25,549 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 23:55:25,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,611 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,612 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:25,613 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:25,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,615 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,657 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:25,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,658 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:25,659 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:25,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,662 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:25,694 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,699 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,699 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:25,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,700 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,710 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 23:55:25,710 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,764 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,764 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:25,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,764 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,764 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,765 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,765 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:25,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,807 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,807 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:25,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,807 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:25,808 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:25,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:25,844 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,851 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,851 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:25,852 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,852 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,852 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,874 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:25,874 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:55:25,902 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,939 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,942 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,942 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:25,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,942 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:25,944 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:25,944 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,947 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:25,983 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:25,985 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:25,985 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:25,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:25,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:25,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:25,986 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:25,987 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:25,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:25,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:26,026 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,034 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,034 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,035 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:26,048 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 23:55:26,048 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,138 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,142 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,142 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,142 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:26,144 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:26,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,149 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,188 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,188 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,189 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:26,190 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:26,191 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:26,229 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,234 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,234 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:26,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,234 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,244 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:26,244 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:55:26,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,281 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,283 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,283 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:26,283 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,283 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,283 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,283 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:26,284 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:26,284 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:26,286 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,310 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,311 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,311 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:26,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,312 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:26,313 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:26,313 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:26,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:26,336 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,340 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,342 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,342 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,342 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:26,360 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-11-29 23:55:26,360 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-11-29 23:55:26,388 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,429 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,432 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,432 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,432 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:26,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:26,454 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,472 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:26,516 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:26,516 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:26,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:26,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:26,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:26,516 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:26,518 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:26,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:26,555 INFO L473 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2020-11-29 23:55:26,556 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-11-29 23:55:26,556 INFO L796 eck$LassoCheckResult]: Loop: 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 := 1 + 3 * main_~y~0; 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 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-11-29 23:55:26,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:26,556 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2020-11-29 23:55:26,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:26,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478989197] [2020-11-29 23:55:26,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,585 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:26,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:26,590 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2020-11-29 23:55:26,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:26,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296432237] [2020-11-29 23:55:26,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,609 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,620 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,622 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:26,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:55:26,625 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2020-11-29 23:55:26,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:55:26,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763682341] [2020-11-29 23:55:26,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:55:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:55:26,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:55:26,678 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:55:26,756 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:26,757 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:26,757 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:26,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:26,757 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:26,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:26,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:26,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-11-29 23:55:26,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:26,757 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:26,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:26,849 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:26,849 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:26,855 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:26,855 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:26,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:26,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:27,001 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:27,002 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:27,002 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:27,003 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:27,003 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:27,003 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:27,003 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,003 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:27,003 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:27,003 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-11-29 23:55:27,003 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:27,003 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:27,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:27,121 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:27,121 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,133 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:27,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:27,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:27,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,173 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,177 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,178 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:27,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,179 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:27,182 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:27,182 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,186 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,217 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:27,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,222 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:27,226 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:27,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,232 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,264 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,270 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:27,270 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,270 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,270 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,270 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:27,275 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:27,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,285 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,317 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,324 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:27,324 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:27,324 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,324 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:27,327 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:27,327 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,368 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,376 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:27,376 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:27,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,377 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:27,381 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:27,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,396 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,429 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,432 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,434 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:27,434 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:27,434 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,435 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,435 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,435 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:27,440 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:27,441 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,464 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,497 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,500 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,502 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:27,503 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:27,503 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,503 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,503 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:27,507 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:27,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,547 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:27,550 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:27,552 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:27,552 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:27,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:27,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:27,553 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:27,553 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:27,561 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:27,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:27,646 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:55:27,687 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,695 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,731 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,735 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,744 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,774 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,811 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,844 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,851 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,859 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,874 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-29 23:55:27,882 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-11-29 23:55:27,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,923 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-11-29 23:55:27,987 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:27,987 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:27,987 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:27,987 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:27,987 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:55:27,987 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:27,987 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:27,987 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:27,987 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-11-29 23:55:27,988 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:27,988 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:27,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:27,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:27,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:28,111 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:28,111 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:28,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:28,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:55:28,116 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,138 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:28,138 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:28,140 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:55:28,140 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:28,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:55:28,170 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,205 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:55:28,205 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:55:28,288 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:55:28,289 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:55:28,289 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:55:28,289 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:55:28,289 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:55:28,289 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:55:28,289 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,289 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:55:28,289 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:55:28,289 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-11-29 23:55:28,289 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:55:28,289 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:55:28,290 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:28,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:28,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:55:28,408 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:55:28,409 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,411 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,412 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,412 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,412 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:28,412 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:28,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,436 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:28,441 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:28,441 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:55:28,446 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:55:28,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:55:28,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:28,489 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,491 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,493 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,493 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:28,494 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:28,494 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,503 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,524 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,525 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,525 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,525 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:28,531 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 23:55:28,531 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-11-29 23:55:28,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,560 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,561 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,561 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:28,562 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:28,562 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,563 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:28,582 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,584 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,586 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,586 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:28,586 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:28,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,611 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,612 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:28,627 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:28,627 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:55:28,649 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,679 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:28,680 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:28,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,689 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:28,714 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,717 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,717 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,717 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,718 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:28,718 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:28,718 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,742 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,744 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:28,757 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 23:55:28,757 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-11-29 23:55:28,776 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:28,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:55:28,835 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,836 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:28,837 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:28,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,839 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:28,872 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,883 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:28,884 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:28,884 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:28,884 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,884 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,884 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:28,885 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:28,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:55:28,888 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:28,929 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:28,931 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:28,931 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:28,931 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:28,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:28,932 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:28,939 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-11-29 23:55:28,940 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:28,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,003 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,003 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:29,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,003 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-11-29 23:55:29,004 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-11-29 23:55:29,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:29,040 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,046 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,046 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:29,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,047 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,048 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:29,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,090 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,090 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:29,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,090 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,100 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:29,100 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,138 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,176 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,176 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-11-29 23:55:29,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,176 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,177 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:29,177 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,181 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:29,212 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,221 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,224 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,224 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,224 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:29,226 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:29,226 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,230 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,265 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,269 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,269 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,269 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:29,282 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-11-29 23:55:29,282 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,373 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,376 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,376 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,376 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-11-29 23:55:29,378 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-11-29 23:55:29,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,383 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:29,413 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,416 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,418 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,419 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:29,419 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,419 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,419 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,419 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,420 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:29,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,423 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,458 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,460 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,461 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:29,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,461 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,472 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-11-29 23:55:29,472 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,490 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,532 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,532 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-11-29 23:55:29,532 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,532 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-11-29 23:55:29,533 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-29 23:55:29,533 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:29,568 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,573 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,573 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,573 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:29,575 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:29,575 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,613 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,618 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,618 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,618 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:29,633 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-11-29 23:55:29,633 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,664 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_122e3d66-405c-40f7-bd1f-706c3b3014ca/bin/uautomizer/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:55:29,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:55:29,702 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-11-29 23:55:29,702 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-11-29 23:55:29,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:55:29,703 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:55:29,703 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:55:29,703 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-11-29 23:55:29,704 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:55:29,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:55:29,708 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-11-29 23:55:29,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:55:29 BoogieIcfgContainer [2020-11-29 23:55:29,748 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:55:29,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:55:29,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:55:29,749 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:55:29,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:55:20" (3/4) ... [2020-11-29 23:55:29,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:55:29,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:55:29,753 INFO L168 Benchmark]: Toolchain (without parser) took 10204.81 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 70.3 MB in the beginning and 82.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:29,754 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 58.6 MB in the beginning and 58.6 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:29,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.97 ms. Allocated memory is still 98.6 MB. Free memory was 70.0 MB in the beginning and 77.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:29,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 98.6 MB. Free memory was 77.2 MB in the beginning and 76.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:29,755 INFO L168 Benchmark]: Boogie Preprocessor took 17.13 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 75.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:29,755 INFO L168 Benchmark]: RCFGBuilder took 223.26 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 67.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:29,756 INFO L168 Benchmark]: BuchiAutomizer took 9649.64 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 67.6 MB in the beginning and 82.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:55:29,756 INFO L168 Benchmark]: Witness Printer took 3.83 ms. Allocated memory is still 163.6 MB. Free memory is still 82.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:55:29,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 98.6 MB. Free memory was 58.6 MB in the beginning and 58.6 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.97 ms. Allocated memory is still 98.6 MB. Free memory was 70.0 MB in the beginning and 77.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.55 ms. Allocated memory is still 98.6 MB. Free memory was 77.2 MB in the beginning and 76.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.13 ms. Allocated memory is still 98.6 MB. Free memory was 76.2 MB in the beginning and 75.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 223.26 ms. Allocated memory is still 98.6 MB. Free memory was 75.1 MB in the beginning and 67.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 9649.64 ms. Allocated memory was 98.6 MB in the beginning and 163.6 MB in the end (delta: 65.0 MB). Free memory was 67.6 MB in the beginning and 82.3 MB in the end (delta: -14.8 MB). Peak memory consumption was 91.1 MB. Max. memory is 16.1 GB. * Witness Printer took 3.83 ms. Allocated memory is still 163.6 MB. Free memory is still 82.3 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 9.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 8.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 46 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div547 bol100 ite100 ukn100 eq124 hnf40 smp69 dnf100 smp100 tf105 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 53ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - 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 Received shutdown request...