./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Collatz.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 0.1.25-f470102 [2019-12-07 16:13:09,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:13:09,021 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:13:09,029 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:13:09,030 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:13:09,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:13:09,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:13:09,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:13:09,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:13:09,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:13:09,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:13:09,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:13:09,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:13:09,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:13:09,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:13:09,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:13:09,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:13:09,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:13:09,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:13:09,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:13:09,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:13:09,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:13:09,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:13:09,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:13:09,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:13:09,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:13:09,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:13:09,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:13:09,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:13:09,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:13:09,052 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:13:09,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:13:09,053 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:13:09,054 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:13:09,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:13:09,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:13:09,055 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:13:09,055 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:13:09,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:13:09,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:13:09,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:13:09,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 16:13:09,069 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:13:09,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:13:09,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 16:13:09,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 16:13:09,070 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 16:13:09,071 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 16:13:09,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 16:13:09,071 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 16:13:09,071 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 16:13:09,071 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 16:13:09,071 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 16:13:09,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 16:13:09,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 16:13:09,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:13:09,073 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 16:13:09,073 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:13:09,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 16:13:09,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:13:09,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 16:13:09,074 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 16:13:09,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:13:09,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 16:13:09,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:13:09,074 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 16:13:09,074 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 16:13:09,075 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:09,187 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:13:09,198 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:13:09,200 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:13:09,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:13:09,202 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:13:09,203 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Collatz.c [2019-12-07 16:13:09,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/data/d232ad2f7/1b3bdf58d8db4ffebd0991c6555b8d2a/FLAG4219559f4 [2019-12-07 16:13:09,558 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:13:09,558 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/sv-benchmarks/c/termination-crafted/Collatz.c [2019-12-07 16:13:09,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/data/d232ad2f7/1b3bdf58d8db4ffebd0991c6555b8d2a/FLAG4219559f4 [2019-12-07 16:13:09,571 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/data/d232ad2f7/1b3bdf58d8db4ffebd0991c6555b8d2a [2019-12-07 16:13:09,573 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:13:09,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:13:09,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:13:09,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:13:09,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:13:09,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f4fcb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09, skipping insertion in model container [2019-12-07 16:13:09,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:13:09,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:13:09,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:13:09,697 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:13:09,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:13:09,748 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:13:09,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09 WrapperNode [2019-12-07 16:13:09,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:13:09,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:13:09,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:13:09,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:13:09,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:13:09,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:13:09,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:13:09,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:13:09,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... [2019-12-07 16:13:09,781 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:13:09,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:13:09,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:13:09,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:13:09,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:09,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:13:09,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:13:09,908 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:13:09,909 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 16:13:09,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:13:09 BoogieIcfgContainer [2019-12-07 16:13:09,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:13:09,910 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 16:13:09,910 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 16:13:09,912 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 16:13:09,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:13:09,913 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 04:13:09" (1/3) ... [2019-12-07 16:13:09,913 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56c57c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:13:09, skipping insertion in model container [2019-12-07 16:13:09,913 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:13:09,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:13:09" (2/3) ... [2019-12-07 16:13:09,914 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56c57c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 04:13:09, skipping insertion in model container [2019-12-07 16:13:09,914 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 16:13:09,914 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:13:09" (3/3) ... [2019-12-07 16:13:09,915 INFO L371 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2019-12-07 16:13:09,948 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 16:13:09,949 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 16:13:09,949 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 16:13:09,949 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:13:09,949 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:13:09,949 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 16:13:09,949 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:13:09,949 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 16:13:09,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 16:13:09,971 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:09,971 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:13:09,971 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:13:09,975 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 16:13:09,975 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:13:09,976 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 16:13:09,976 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 16:13:09,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:09,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:13:09,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:13:09,976 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 16:13:09,977 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:13:09,981 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L14-2true [2019-12-07 16:13:09,981 INFO L796 eck$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 [2019-12-07 16:13:09,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:09,985 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 16:13:09,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:09,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208606873] [2019-12-07 16:13:09,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,050 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-12-07 16:13:10,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043649504] [2019-12-07 16:13:10,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,080 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,082 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-12-07 16:13:10,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031672878] [2019-12-07 16:13:10,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,097 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,132 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:10,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:10,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:10,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:10,133 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:10,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:10,134 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:10,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2019-12-07 16:13:10,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:10,134 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:10,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:10,276 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:10,276 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,281 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:10,281 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:10,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:10,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:10,317 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:10,319 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:10,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:10,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:10,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:10,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:10,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,319 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:10,319 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:10,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2019-12-07 16:13:10,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:10,319 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:10,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:10,393 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:10,396 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:10,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:10,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:10,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:10,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:10,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:10,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:10,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:10,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:13:10,414 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:13:10,415 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:13:10,420 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:13:10,420 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:13:10,421 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 16:13:10,424 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:13:10,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:10,448 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:13:10,449 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:10,458 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:13:10,458 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:10,477 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 [2019-12-07 16:13:10,478 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-12-07 16:13:10,507 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2019-12-07 16:13:10,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 16:13:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:13:10,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2019-12-07 16:13:10,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 16:13:10,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 16:13:10,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 16:13:10,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,512 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 16:13:10,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:10,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 16:13:10,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 16:13:10,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 16:13:10,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 16:13:10,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:13:10,518 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 16:13:10,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 16:13:10,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 16:13:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 16:13:10,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 16:13:10,535 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 16:13:10,535 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 16:13:10,535 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 16:13:10,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 16:13:10,535 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:10,535 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:13:10,535 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:13:10,535 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 16:13:10,536 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:13:10,536 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 69#L14-2 [2019-12-07 16:13:10,536 INFO L796 eck$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 [2019-12-07 16:13:10,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,536 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-12-07 16:13:10,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,536 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641356909] [2019-12-07 16:13:10,536 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,548 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-12-07 16:13:10,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,549 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192104795] [2019-12-07 16:13:10,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,557 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,557 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-12-07 16:13:10,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229080368] [2019-12-07 16:13:10,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,571 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,583 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:10,584 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:10,584 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:10,584 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:10,584 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:10,584 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,584 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:10,584 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:10,584 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2019-12-07 16:13:10,584 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:10,584 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:10,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:10,639 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:10,639 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:10,643 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:10,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:10,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:10,666 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:10,667 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:10,668 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:10,668 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:10,668 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:10,668 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:10,668 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,668 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:10,668 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:10,668 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2019-12-07 16:13:10,668 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:10,668 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:10,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:10,725 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:10,725 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:10,728 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:10,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:10,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:10,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:10,730 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:10,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:10,731 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:10,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:10,733 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:13:10,737 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:13:10,737 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,742 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:13:10,742 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:13:10,742 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:13:10,742 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 16:13:10,743 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:13:10,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:10,756 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:13:10,757 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:10,760 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:13:10,761 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:10,768 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 [2019-12-07 16:13:10,768 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 16:13:10,776 INFO L76 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. [2019-12-07 16:13:10,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:13:10,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:13:10,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 16:13:10,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 16:13:10,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 16:13:10,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-12-07 16:13:10,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:10,779 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-12-07 16:13:10,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:10,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 16:13:10,780 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 16:13:10,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 16:13:10,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-12-07 16:13:10,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:13:10,780 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 16:13:10,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-12-07 16:13:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 16:13:10,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 16:13:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 16:13:10,781 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 16:13:10,781 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 16:13:10,781 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 16:13:10,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-12-07 16:13:10,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 16:13:10,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:13:10,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:13:10,782 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-12-07 16:13:10,782 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 16:13:10,782 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 127#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 128#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 123#L14-2 [2019-12-07 16:13:10,782 INFO L796 eck$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 [2019-12-07 16:13:10,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,783 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-12-07 16:13:10,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900455374] [2019-12-07 16:13:10,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:10,832 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900455374] [2019-12-07 16:13:10,833 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203234386] [2019-12-07 16:13:10,833 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:10,848 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 16:13:10,848 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 16:13:10,849 WARN L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 16:13:10,849 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:10,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:10,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 16:13:10,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2019-12-07 16:13:10,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033691117] [2019-12-07 16:13:10,897 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 16:13:10,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:10,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-12-07 16:13:10,897 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:10,897 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188556113] [2019-12-07 16:13:10,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:10,905 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:10,919 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:10,919 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:10,919 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:10,919 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:10,920 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:10,920 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,920 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:10,920 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:10,920 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2019-12-07 16:13:10,920 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:10,920 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:10,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:10,984 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:10,984 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:10,987 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:10,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:10,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:11,008 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:11,009 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:11,009 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:11,009 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:11,010 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:11,010 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:11,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,010 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:11,010 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:11,010 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2019-12-07 16:13:11,010 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:11,010 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:11,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:11,069 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:11,069 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,072 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:11,073 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,073 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,073 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,073 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:11,074 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:11,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,076 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 16:13:11,080 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 16:13:11,080 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,084 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 16:13:11,084 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 16:13:11,085 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 16:13:11,085 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-12-07 16:13:11,086 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 16:13:11,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,099 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,099 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,102 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,103 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:11,110 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 [2019-12-07 16:13:11,111 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 16:13:11,121 INFO L76 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. [2019-12-07 16:13:11,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:13:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:13:11,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 16:13:11,122 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 16:13:11,122 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:11,122 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:13:11,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,134 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,134 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,137 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,138 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:11,144 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 [2019-12-07 16:13:11,144 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 16:13:11,151 INFO L76 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. [2019-12-07 16:13:11,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:13:11,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:13:11,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 16:13:11,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 16:13:11,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:11,152 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 16:13:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,163 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,163 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:13:11,166 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 16:13:11,166 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 16:13:11,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:13:11,173 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 [2019-12-07 16:13:11,173 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 16:13:11,181 INFO L76 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. [2019-12-07 16:13:11,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 16:13:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 16:13:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-12-07 16:13:11,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 16:13:11,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:11,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 16:13:11,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:11,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 16:13:11,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 16:13:11,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-12-07 16:13:11,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:13:11,184 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-12-07 16:13:11,184 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 16:13:11,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 16:13:11,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-12-07 16:13:11,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:13:11,184 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-12-07 16:13:11,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-12-07 16:13:11,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-12-07 16:13:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 16:13:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-12-07 16:13:11,185 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 16:13:11,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 16:13:11,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:13:11,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:13:11,188 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 4 states. [2019-12-07 16:13:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:13:11,206 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2019-12-07 16:13:11,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:13:11,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2019-12-07 16:13:11,207 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-12-07 16:13:11,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2019-12-07 16:13:11,208 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 16:13:11,208 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-12-07 16:13:11,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-12-07 16:13:11,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 16:13:11,208 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-12-07 16:13:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-12-07 16:13:11,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2019-12-07 16:13:11,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 16:13:11,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-12-07 16:13:11,209 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 16:13:11,209 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 16:13:11,209 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 16:13:11,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-12-07 16:13:11,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 16:13:11,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 16:13:11,210 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 16:13:11,210 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 16:13:11,210 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-12-07 16:13:11,210 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 [2019-12-07 16:13:11,210 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 [2019-12-07 16:13:11,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 16:13:11,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:11,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491750718] [2019-12-07 16:13:11,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,213 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:11,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2019-12-07 16:13:11,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:11,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507757976] [2019-12-07 16:13:11,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,226 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:11,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-12-07 16:13:11,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:11,227 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960773326] [2019-12-07 16:13:11,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:11,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:11,276 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:11,276 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:11,276 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:11,276 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:11,276 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:11,276 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,276 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:11,276 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:11,276 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2019-12-07 16:13:11,276 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:11,276 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:11,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:11,319 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:11,319 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:11,322 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:11,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:11,770 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:11,771 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:11,771 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:11,771 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:11,771 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:11,771 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:11,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,772 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:11,772 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:11,772 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2019-12-07 16:13:11,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:11,772 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:11,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:11,819 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:11,820 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:11,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:11,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:11,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,832 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,833 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,838 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:11,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,840 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,840 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:11,842 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:11,842 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,847 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,849 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 [2019-12-07 16:13:11,851 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:11,851 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,851 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,851 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,851 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:11,854 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:11,854 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,860 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:11,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,865 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:11,868 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:11,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,876 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:11,895 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,898 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:11,898 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:11,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,898 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:11,901 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:11,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,907 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,909 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,915 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:11,915 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:11,916 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,916 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:11,919 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:11,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,929 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,934 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 [2019-12-07 16:13:11,936 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:11,936 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:11,936 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,936 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,936 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:11,942 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:11,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,960 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,962 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:11,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,966 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:11,966 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:11,966 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,966 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:11,968 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:11,968 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,973 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,974 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,977 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:11,979 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:11,979 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:11,979 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:11,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:11,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:11,979 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:11,982 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:11,983 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:11,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:11,996 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:11,997 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:11,997 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:11,997 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:11,997 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:11,997 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:11,997 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:11,997 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:11,997 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2019-12-07 16:13:11,997 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:11,997 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:11,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:11,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,048 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:12,049 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,052 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:12,052 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:12,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:13:12,056 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,062 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:12,062 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:12,075 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:12,318 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:12,320 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:12,320 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:12,320 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:12,320 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:12,320 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:12,320 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,320 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:12,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:12,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2019-12-07 16:13:12,321 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:12,321 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:12,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,379 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:12,379 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,382 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,383 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:12,386 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:12,386 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:13:12,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,396 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:12,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:12,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,403 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:12,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:12,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,406 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,407 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,410 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,411 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,414 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 16:13:12,414 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 16:13:12,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,425 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,425 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,426 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:12,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,427 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,432 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,432 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:12,433 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,435 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,438 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,439 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,439 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,440 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,443 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:12,443 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:12,455 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,460 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,460 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,461 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,461 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,467 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,472 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,473 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,474 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,475 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,476 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,481 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,487 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 16:13:12,487 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 16:13:12,501 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,505 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 [2019-12-07 16:13:12,506 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,506 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,506 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,507 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,507 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:12,507 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,513 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 [2019-12-07 16:13:12,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:12,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,514 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,514 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,515 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:12,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,516 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,517 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,520 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,521 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,521 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,521 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,524 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 16:13:12,525 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 16:13:12,536 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,541 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,541 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,541 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,542 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:12,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,544 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,549 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,549 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,549 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:12,549 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:12,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,552 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,555 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,556 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,556 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:12,556 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,556 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,556 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,561 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:12,561 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:12,578 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,584 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,584 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:12,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,584 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,585 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,588 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,592 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,593 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,593 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:12,593 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,593 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,593 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,594 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,597 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,598 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,602 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,602 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,603 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,607 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 16:13:12,608 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 16:13:12,635 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,640 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,640 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,640 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,641 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:12,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,647 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,649 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,649 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,649 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:12,650 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:12,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,653 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,654 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,656 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,658 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,658 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,658 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,662 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:12,662 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:12,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,682 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,682 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,682 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,683 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,684 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,689 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,689 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:12,689 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,689 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,689 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,689 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:12,690 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:12,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,691 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,692 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,695 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,696 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,696 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,696 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:12,702 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-12-07 16:13:12,702 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-12-07 16:13:12,722 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,728 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,728 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,728 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,728 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,728 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,728 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:12,729 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:12,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,732 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,736 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:12,738 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:12,738 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:12,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:12,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:12,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:12,738 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:12,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:12,739 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:12,741 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:12,742 INFO L470 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2019-12-07 16:13:12,742 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 [2019-12-07 16:13:12,742 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 [2019-12-07 16:13:12,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:12,742 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2019-12-07 16:13:12,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:12,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795958081] [2019-12-07 16:13:12,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,755 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:12,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:12,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2019-12-07 16:13:12,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:12,755 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095584978] [2019-12-07 16:13:12,755 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,765 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:12,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:13:12,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2019-12-07 16:13:12,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 16:13:12,765 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876027317] [2019-12-07 16:13:12,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:13:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:13:12,785 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 16:13:12,822 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:12,822 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:12,822 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:12,822 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:12,822 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:12,822 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,822 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:12,822 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:12,822 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2019-12-07 16:13:12,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:12,823 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:12,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:12,863 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:12,863 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:12,866 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:12,866 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:12,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:12,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:13,055 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:13,056 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:13,056 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:13,057 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:13,057 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:13,057 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:13,057 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,057 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:13,057 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:13,057 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2019-12-07 16:13:13,057 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:13,057 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:13,058 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,097 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:13,097 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,100 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:13,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:13,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:13,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,105 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,107 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:13,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,109 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:13,110 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:13,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,113 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,116 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,117 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:13,117 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,117 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,117 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,117 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:13,119 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:13,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,122 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,123 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,125 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:13,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,127 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:13,129 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:13,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,133 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,134 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,138 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:13,138 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:13,138 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,138 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,138 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:13,139 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:13,139 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,144 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,145 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,147 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,149 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:13,149 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:13,149 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,149 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,149 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,149 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:13,151 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:13,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,160 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,163 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,164 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:13,164 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:13,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,165 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:13,167 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:13,167 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,183 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,184 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,186 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,188 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:13,188 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:13,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,188 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:13,190 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:13,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,195 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,197 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,198 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:13,199 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:13,199 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,199 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:13,201 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:13,201 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:13,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:13,255 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:13,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:13,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:13,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:13,255 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 16:13:13,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:13,255 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:13,255 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2019-12-07 16:13:13,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:13,256 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:13,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,268 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,345 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:13,345 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:13,348 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:13,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:13,351 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 16:13:13,351 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_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:13,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 16:13:13,355 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 16:13:13,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 16:13:13,900 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 16:13:13,901 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 16:13:13,901 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 16:13:13,901 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 16:13:13,901 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 16:13:13,901 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 16:13:13,901 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:13,901 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 16:13:13,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 16:13:13,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2019-12-07 16:13:13,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 16:13:13,901 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 16:13:13,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 16:13:13,995 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 16:13:13,995 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:13,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:13,999 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:13,999 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:13,999 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:13,999 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:13,999 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:13,999 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:13,999 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,001 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,004 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,006 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,006 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:14,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 16:13:14,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,007 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,011 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 16:13:14,015 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:14,015 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 16:13:14,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,022 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,025 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,026 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,026 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:14,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,028 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,032 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,032 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,032 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,032 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,033 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:14,033 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,034 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,039 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,042 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 16:13:14,042 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 16:13:14,051 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,052 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,054 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,056 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,056 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,056 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,057 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,058 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,061 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,063 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,063 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,070 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,076 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:14,076 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:14,090 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,091 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,095 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,096 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,096 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,096 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,096 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,096 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:14,096 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,098 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,104 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,104 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:14,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,106 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 16:13:14,126 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,126 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,126 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,133 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 16:13:14,134 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 16:13:14,151 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,153 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,157 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,157 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,157 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,157 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,157 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,157 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:14,157 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,159 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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 [2019-12-07 16:13:14,162 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,164 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,164 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,164 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,165 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-12-07 16:13:14,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,167 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,171 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,172 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,172 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,172 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-12-07 16:13:14,176 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-12-07 16:13:14,176 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-12-07 16:13:14,190 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,191 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,194 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,195 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,195 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:14,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,196 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,196 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,198 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,202 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,203 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,204 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:14,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,204 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,204 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,204 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,212 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,212 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2019-12-07 16:13:14,212 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,212 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,212 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,216 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:14,216 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:14,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,246 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,249 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,251 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,251 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,251 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,251 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:14,252 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,259 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,259 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,260 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,260 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,260 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2019-12-07 16:13:14,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,263 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,267 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,268 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,268 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,269 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2019-12-07 16:13:14,274 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2019-12-07 16:13:14,274 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2019-12-07 16:13:14,326 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,327 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,331 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,331 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,331 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,331 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,332 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,332 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,338 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,338 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,338 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,338 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-12-07 16:13:14,338 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,340 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 93 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,343 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,345 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,345 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2019-12-07 16:13:14,345 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,345 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-12-07 16:13:14,349 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-12-07 16:13:14,349 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-12-07 16:13:14,365 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,366 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/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) Waiting until toolchain timeout for monitored process 94 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,369 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,370 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,370 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,370 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:14,371 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:14,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,373 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 95 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,376 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,378 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,378 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 16:13:14,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,378 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:14,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 16:13:14,379 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 16:13:14,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f419f5ff-9fb7-4b78-8c57-3d43dfcb19f8/bin/uautomizer/z3 Starting monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 96 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 16:13:14,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 16:13:14,386 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2019-12-07 16:13:14,386 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2019-12-07 16:13:14,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 16:13:14,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 16:13:14,386 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2019-12-07 16:13:14,393 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2019-12-07 16:13:14,393 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2019-12-07 16:13:14,416 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-12-07 16:13:14,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 04:13:14 BoogieIcfgContainer [2019-12-07 16:13:14,421 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 16:13:14,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:13:14,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:13:14,422 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:13:14,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:13:09" (3/4) ... [2019-12-07 16:13:14,424 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:13:14,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:13:14,425 INFO L168 Benchmark]: Toolchain (without parser) took 4851.12 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 345.0 MB). Free memory was 936.6 MB in the beginning and 1.2 GB in the end (delta: -300.4 MB). Peak memory consumption was 44.6 MB. Max. memory is 11.5 GB. [2019-12-07 16:13:14,426 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:13:14,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 936.6 MB in the beginning and 1.2 GB in the end (delta: -221.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-12-07 16:13:14,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:13:14,426 INFO L168 Benchmark]: Boogie Preprocessor took 11.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:13:14,427 INFO L168 Benchmark]: RCFGBuilder took 128.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-12-07 16:13:14,427 INFO L168 Benchmark]: BuchiAutomizer took 4511.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.2 MB). Peak memory consumption was 388.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:13:14,427 INFO L168 Benchmark]: Witness Printer took 2.58 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:13:14,429 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.0 MB). Free memory was 936.6 MB in the beginning and 1.2 GB in the end (delta: -221.1 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 128.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4511.43 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -97.2 MB). Peak memory consumption was 388.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.58 ms. Allocated memory is still 1.4 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 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 4.4s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 4.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: inital41 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div338 bol100 ite112 ukn100 eq133 hnf54 smp51 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 33ms VariablesStem: 5 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Unable to decide termination Buchi Automizer is unable to decide termination for the following lasso. Stem: "havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;" "assume !!(main_~y~0 > 1);" "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" Loop: "assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0;" "assume !!(main_~y~0 > 1);" "assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2);" "assume !!(main_~y~0 > 1);" RESULT: Ultimate could not prove your program: unable to determine termination Received shutdown request...