./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Collatz.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 0.1.25-906a4fb [2020-10-19 18:39:35,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:39:35,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:39:35,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:39:35,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:39:35,629 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:39:35,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:39:35,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:39:35,643 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:39:35,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:39:35,645 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:39:35,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:39:35,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:39:35,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:39:35,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:39:35,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:39:35,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:39:35,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:39:35,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:39:35,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:39:35,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:39:35,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:39:35,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:39:35,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:39:35,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:39:35,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:39:35,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:39:35,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:39:35,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:39:35,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:39:35,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:39:35,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:39:35,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:39:35,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:39:35,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:39:35,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:39:35,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:39:35,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:39:35,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:39:35,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:39:35,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:39:35,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:39:35,706 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:39:35,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:39:35,708 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:39:35,708 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:39:35,708 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:39:35,709 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:39:35,709 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:39:35,709 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:39:35,710 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:39:35,710 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:39:35,710 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:39:35,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:39:35,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:39:35,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:39:35,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:39:35,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:39:35,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:39:35,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:39:35,712 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:39:35,713 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:39:35,713 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:39:35,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:39:35,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:39:35,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:39:35,714 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:39:35,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:39:35,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:39:35,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:39:35,715 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:39:35,716 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:39:35,717 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 873a06533d36987711ab5e2c177066aa117a2df5 [2020-10-19 18:39:36,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:39:36,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:39:36,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:39:36,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:39:36,083 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:39:36,085 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Collatz.c [2020-10-19 18:39:36,153 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb2c33e5/b56eee37fd9746cea5d4e193e3d2ebc5/FLAG4235c3ea6 [2020-10-19 18:39:36,530 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:39:36,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz.c [2020-10-19 18:39:36,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb2c33e5/b56eee37fd9746cea5d4e193e3d2ebc5/FLAG4235c3ea6 [2020-10-19 18:39:36,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb2c33e5/b56eee37fd9746cea5d4e193e3d2ebc5 [2020-10-19 18:39:36,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:39:36,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:39:36,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:39:36,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:39:37,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:39:37,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:39:36" (1/1) ... [2020-10-19 18:39:37,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69cbac92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37, skipping insertion in model container [2020-10-19 18:39:37,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:39:36" (1/1) ... [2020-10-19 18:39:37,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:39:37,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:39:37,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:39:37,248 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:39:37,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:39:37,278 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:39:37,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37 WrapperNode [2020-10-19 18:39:37,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:39:37,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:39:37,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:39:37,280 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:39:37,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:39:37,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:39:37,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:39:37,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:39:37,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... [2020-10-19 18:39:37,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:39:37,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:39:37,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:39:37,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:39:37,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:37,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:39:37,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:39:37,688 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:39:37,689 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:39:37,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:37 BoogieIcfgContainer [2020-10-19 18:39:37,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:39:37,692 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:39:37,692 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:39:37,700 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:39:37,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:37,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:39:36" (1/3) ... [2020-10-19 18:39:37,703 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@332f5e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:39:37, skipping insertion in model container [2020-10-19 18:39:37,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:37,704 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:37" (2/3) ... [2020-10-19 18:39:37,704 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@332f5e77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:39:37, skipping insertion in model container [2020-10-19 18:39:37,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:37,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:37" (3/3) ... [2020-10-19 18:39:37,707 INFO L373 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2020-10-19 18:39:37,782 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:39:37,783 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:39:37,783 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:39:37,783 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:39:37,783 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:39:37,783 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:39:37,784 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:39:37,785 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:39:37,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-19 18:39:37,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:37,832 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:37,832 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:37,841 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:39:37,842 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:39:37,842 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:39:37,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2020-10-19 18:39:37,844 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:37,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:37,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:37,845 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-19 18:39:37,846 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:39:37,856 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L14-2true [2020-10-19 18:39:37,856 INFO L796 eck$LassoCheckResult]: Loop: 5#L14-2true assume !!(main_~y~0 > 1); 8#L14true assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 5#L14-2true [2020-10-19 18:39:37,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:37,864 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-19 18:39:37,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:37,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348559024] [2020-10-19 18:39:37,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:37,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:37,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:37,957 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:37,977 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:37,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:37,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-10-19 18:39:37,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:37,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732518644] [2020-10-19 18:39:37,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:38,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,021 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:38,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:38,023 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-10-19 18:39:38,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:38,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699675068] [2020-10-19 18:39:38,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:38,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,050 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:38,175 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:38,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:38,177 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:38,177 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:38,178 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:38,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:38,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:38,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:38,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-10-19 18:39:38,179 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:38,180 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:38,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:38,338 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:38,339 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:38,385 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:38,386 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:38,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:38,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:38,499 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:38,503 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:38,503 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:38,504 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:38,504 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:38,504 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:38,504 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:38,505 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:38,505 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:38,505 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2020-10-19 18:39:38,505 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:38,505 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:38,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:38,587 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:38,593 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:38,609 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:38,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:38,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:38,613 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:38,613 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:38,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:38,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:38,619 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:38,623 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:39:38,632 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:39:38,632 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:38,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:39:38,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:39:38,648 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:39:38,649 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:38,686 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:39:38,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:38,729 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:38,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:38,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:38,742 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:39:38,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:38,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:38,779 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:39:38,780 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2020-10-19 18:39:38,833 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2020-10-19 18:39:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:39:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2020-10-19 18:39:38,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-19 18:39:38,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:38,840 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-19 18:39:38,840 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:38,841 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2020-10-19 18:39:38,841 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:38,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2020-10-19 18:39:38,846 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:38,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-19 18:39:38,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-19 18:39:38,852 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-10-19 18:39:38,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-19 18:39:38,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:39:38,854 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:39:38,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-19 18:39:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-10-19 18:39:38,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-19 18:39:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-10-19 18:39:38,881 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:39:38,881 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-19 18:39:38,881 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:39:38,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-10-19 18:39:38,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:38,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:38,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:38,883 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 18:39:38,883 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:39:38,883 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 69#L14-2 [2020-10-19 18:39:38,884 INFO L796 eck$LassoCheckResult]: Loop: 69#L14-2 assume !!(main_~y~0 > 1); 70#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 69#L14-2 [2020-10-19 18:39:38,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:38,884 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2020-10-19 18:39:38,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:38,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140966944] [2020-10-19 18:39:38,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,904 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,906 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:38,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:38,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2020-10-19 18:39:38,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:38,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757447399] [2020-10-19 18:39:38,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,919 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,926 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,928 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:38,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2020-10-19 18:39:38,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:38,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464212909] [2020-10-19 18:39:38,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:38,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,942 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:38,954 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:38,956 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:39,011 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:39,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:39,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:39,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:39,012 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:39,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:39,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:39,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-10-19 18:39:39,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:39,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:39,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:39,083 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:39,083 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:39,096 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:39,158 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,227 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:39,230 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:39,230 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:39,230 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:39,230 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:39,230 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:39,231 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,231 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:39,231 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:39,231 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2020-10-19 18:39:39,231 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:39,231 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:39,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:39,299 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:39,299 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:39,308 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:39,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:39,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:39,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:39,309 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:39,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:39,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:39,316 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:39:39,319 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:39:39,320 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:39,323 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:39:39,323 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:39:39,323 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:39:39,323 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-10-19 18:39:39,344 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:39:39,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:39,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:39,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:39,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:39,375 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:39:39,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:39,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:39,388 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:39:39,388 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-10-19 18:39:39,404 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2020-10-19 18:39:39,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:39,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:39:39,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-19 18:39:39,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-19 18:39:39,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:39,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:39:39,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:39,408 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-19 18:39:39,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:39,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2020-10-19 18:39:39,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:39,410 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2020-10-19 18:39:39,410 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-10-19 18:39:39,410 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:39:39,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2020-10-19 18:39:39,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:39:39,411 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-19 18:39:39,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2020-10-19 18:39:39,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 18:39:39,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 18:39:39,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2020-10-19 18:39:39,413 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-19 18:39:39,413 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2020-10-19 18:39:39,413 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 18:39:39,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2020-10-19 18:39:39,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-19 18:39:39,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:39,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:39,415 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2020-10-19 18:39:39,415 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 18:39:39,415 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 127#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 128#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 123#L14-2 [2020-10-19 18:39:39,415 INFO L796 eck$LassoCheckResult]: Loop: 123#L14-2 assume !!(main_~y~0 > 1); 124#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 123#L14-2 [2020-10-19 18:39:39,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:39,416 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2020-10-19 18:39:39,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:39,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717813825] [2020-10-19 18:39:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:39,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717813825] [2020-10-19 18:39:39,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373181179] [2020-10-19 18:39:39,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-19 18:39:39,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-19 18:39:39,539 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-19 18:39:39,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-19 18:39:39,620 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:39,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-10-19 18:39:39,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-10-19 18:39:39,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347259609] [2020-10-19 18:39:39,625 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-10-19 18:39:39,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:39,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2020-10-19 18:39:39,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:39,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072311765] [2020-10-19 18:39:39,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:39,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:39,633 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:39,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:39,639 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:39,682 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:39,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:39,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:39,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:39,683 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:39,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:39,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:39,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-10-19 18:39:39,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:39,683 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:39,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:39,745 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:39,746 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:39,758 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:39,807 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,861 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:39,864 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:39,864 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:39,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:39,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:39,865 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:39,865 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,865 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:39,865 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:39,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2020-10-19 18:39:39,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:39,867 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:39,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:39,921 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:39,922 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:39,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:39,933 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:39,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:39,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:39,934 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:39,934 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:39,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:39,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:39,940 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:39:39,947 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 18:39:39,947 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:39,959 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:39:39,959 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:39:39,959 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:39:39,959 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:39,989 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:39:40,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,034 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:40,048 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:39:40,048 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-19 18:39:40,068 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-10-19 18:39:40,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:40,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:39:40,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-19 18:39:40,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:39:40,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:40,072 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:39:40,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:40,117 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:39:40,118 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-19 18:39:40,131 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2020-10-19 18:39:40,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:40,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:39:40,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-10-19 18:39:40,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:39:40,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:40,134 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-10-19 18:39:40,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:40,167 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 18:39:40,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:40,181 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-19 18:39:40,181 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2020-10-19 18:39:40,204 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2020-10-19 18:39:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:40,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 18:39:40,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-10-19 18:39:40,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 18:39:40,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:40,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2020-10-19 18:39:40,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:40,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2020-10-19 18:39:40,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:40,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2020-10-19 18:39:40,211 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:39:40,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2020-10-19 18:39:40,214 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-10-19 18:39:40,215 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-10-19 18:39:40,215 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2020-10-19 18:39:40,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:39:40,216 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2020-10-19 18:39:40,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2020-10-19 18:39:40,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2020-10-19 18:39:40,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 18:39:40,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-10-19 18:39:40,219 INFO L714 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2020-10-19 18:39:40,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 18:39:40,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 18:39:40,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-19 18:39:40,224 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 4 states. [2020-10-19 18:39:40,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 18:39:40,260 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2020-10-19 18:39:40,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 18:39:40,261 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2020-10-19 18:39:40,261 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-10-19 18:39:40,262 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2020-10-19 18:39:40,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-10-19 18:39:40,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-19 18:39:40,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-10-19 18:39:40,264 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-19 18:39:40,264 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-10-19 18:39:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-10-19 18:39:40,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2020-10-19 18:39:40,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-19 18:39:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-10-19 18:39:40,266 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 18:39:40,266 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-10-19 18:39:40,266 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 18:39:40,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-10-19 18:39:40,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 18:39:40,267 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:40,267 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:40,267 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 18:39:40,267 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2020-10-19 18:39:40,268 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-19 18:39:40,268 INFO L796 eck$LassoCheckResult]: Loop: 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-19 18:39:40,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-19 18:39:40,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:40,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601788359] [2020-10-19 18:39:40,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,283 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:40,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2020-10-19 18:39:40,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:40,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503893659] [2020-10-19 18:39:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,308 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,327 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,329 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:40,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:40,329 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2020-10-19 18:39:40,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:40,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630405978] [2020-10-19 18:39:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:40,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:40,350 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:40,435 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:40,435 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:40,435 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:40,435 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:40,435 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:40,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:40,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:40,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:40,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-19 18:39:40,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:40,436 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:40,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:40,555 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:40,555 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:40,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:40,567 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:40,616 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:40,616 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:40,747 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:40,749 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:40,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:40,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:40,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:40,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:40,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:40,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:40,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:40,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-19 18:39:40,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:40,751 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:40,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:40,837 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:40,837 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:40,848 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:40,850 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:40,850 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:40,850 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:40,850 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:40,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:40,852 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:40,853 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:40,857 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:40,890 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:40,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:40,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:40,910 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:40,911 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:40,911 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:40,911 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:40,914 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:40,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:40,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:40,980 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:40,998 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:41,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,002 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:41,013 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:41,013 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:41,039 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,071 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,090 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:41,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,093 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:41,098 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:41,098 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,145 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,174 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:41,174 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:41,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,174 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,175 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:41,179 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:41,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:41,194 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,219 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:41,229 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,232 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:41,232 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:41,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,232 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,232 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,232 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:41,240 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:41,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:41,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,290 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,299 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:41,300 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:41,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,301 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,307 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:41,308 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:41,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,373 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,380 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:41,380 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:41,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,381 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:41,385 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:41,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,394 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,426 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,433 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 Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,436 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:41,436 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:41,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,436 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:41,442 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:41,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:41,458 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:41,488 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:41,489 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:41,489 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:41,489 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:41,489 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:41,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:41,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:41,489 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-19 18:39:41,489 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:41,489 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:41,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,497 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,589 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:41,589 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:41,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:41,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:41,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:39:41,598 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:41,623 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:41,623 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:41,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:41,790 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:41,792 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:41,792 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:41,792 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:41,792 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:41,793 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:41,793 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,793 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:41,793 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:41,794 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-19 18:39:41,794 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:41,794 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:41,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:41,897 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:41,897 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,908 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,910 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:41,910 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,910 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,910 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:41,915 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:41,915 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,922 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:41,960 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:41,962 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:41,962 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:41,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:41,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:41,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:41,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:41,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:41,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:42,009 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:42,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,048 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,055 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,060 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:42,061 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,071 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,110 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,112 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,112 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,113 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,114 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:42,114 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,116 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,149 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,152 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,153 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:42,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,156 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,176 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,180 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,181 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,181 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,181 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,194 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:42,194 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-19 18:39:42,209 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,246 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,246 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,247 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:42,248 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,250 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,272 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,276 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,277 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:42,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,305 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,310 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,326 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-19 18:39:42,326 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2020-10-19 18:39:42,346 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,374 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,376 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,377 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:42,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,403 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 Waiting until toolchain timeout for monitored process 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:42,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,406 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,408 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:42,408 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,435 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,440 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,440 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:42,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,441 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,447 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:42,447 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-19 18:39:42,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,505 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,507 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,507 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:42,507 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,508 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,509 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:42,509 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,512 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,537 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,537 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:42,537 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,537 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,537 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,537 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:42,538 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:42,538 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,540 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,563 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,567 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,567 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:42,567 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,567 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,567 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,574 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:42,575 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-19 18:39:42,599 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:42,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,626 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,626 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:42,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,627 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,628 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:42,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,633 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,671 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,671 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:42,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,671 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,672 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:42,672 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,677 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,711 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,719 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,719 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:42,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,719 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,728 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-19 18:39:42,729 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,786 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,825 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,828 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,828 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:42,828 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,829 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,830 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:42,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,872 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,874 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,874 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:42,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,875 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:42,876 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:42,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,881 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:42,912 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,919 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,921 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,921 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:42,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,922 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,927 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:42,927 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:42,943 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:42,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:42,975 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:42,975 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:42,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:42,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:42,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:42,976 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:42,976 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:42,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:42,979 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,001 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,004 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,004 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:43,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,004 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:43,006 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:43,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:43,008 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,031 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,035 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,035 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:43,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,035 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:43,045 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-10-19 18:39:43,046 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-10-19 18:39:43,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:43,091 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,093 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,093 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:43,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,094 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:43,095 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:43,095 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:43,097 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:43,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,121 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,121 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:43,121 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,121 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,121 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,121 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:43,122 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:43,122 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:43,131 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,158 INFO L473 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2020-10-19 18:39:43,159 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 296#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-19 18:39:43,159 INFO L796 eck$LassoCheckResult]: Loop: 300#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 [2020-10-19 18:39:43,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:43,159 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2020-10-19 18:39:43,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:43,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153445859] [2020-10-19 18:39:43,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,177 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:43,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:43,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2020-10-19 18:39:43,178 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:43,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551604720] [2020-10-19 18:39:43,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,193 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,194 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:43,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:43,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2020-10-19 18:39:43,195 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:43,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570046579] [2020-10-19 18:39:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,210 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:43,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:43,225 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:43,292 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:43,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:43,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:43,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:43,292 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:43,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:43,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:43,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-19 18:39:43,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:43,293 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:43,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:43,378 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:43,378 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:43,391 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,427 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:43,427 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:43,523 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:43,524 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:43,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:43,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:43,525 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:43,525 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:43,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:43,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:43,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2020-10-19 18:39:43,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:43,525 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:43,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:43,595 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:43,595 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,611 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,613 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:43,613 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:43,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:43,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,658 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:43,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,663 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,663 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,663 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:43,665 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:43,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,670 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,703 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,708 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:43,708 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,708 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,709 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:43,711 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:43,711 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,717 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,751 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,754 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,756 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:43,756 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,756 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,756 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,756 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:43,759 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:43,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,766 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,801 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,806 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,806 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:43,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,807 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:43,809 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:43,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,852 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:43,855 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,858 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,858 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:43,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,858 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:43,861 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:43,862 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:43,878 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,905 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:43,907 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:43,909 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,909 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:43,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,910 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:43,914 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:43,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:43,942 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:43,963 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:43,965 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 [2020-10-19 18:39:43,966 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:43,967 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:43,967 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:43,967 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:43,967 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:43,967 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:43,970 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:43,970 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:43,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:44,000 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:44,002 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:44,004 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:44,004 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:44,004 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:44,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:44,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:44,005 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:44,008 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:44,009 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:44,019 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:44,083 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:39:44,105 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,146 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,158 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,176 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,194 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,205 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,240 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,260 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,284 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,294 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-19 18:39:44,307 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,329 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-10-19 18:39:44,344 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,348 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-19 18:39:44,411 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:44,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:44,411 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:44,411 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:44,411 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:44,411 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,412 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:44,412 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:44,412 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-19 18:39:44,412 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:44,413 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:44,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,420 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,539 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:44,539 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:44,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:44,542 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,546 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:39:44,546 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:44,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:44,571 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:39:44,571 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:44,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:44,593 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:44,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-19 18:39:44,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:44,703 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:44,703 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:44,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:44,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:44,704 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:44,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:44,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:44,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2020-10-19 18:39:44,704 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:44,704 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:44,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:44,822 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:44,823 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,826 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 [2020-10-19 18:39:44,827 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:44,827 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:44,828 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:44,828 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:44,828 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:44,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:44,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:44,835 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:44,873 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:44,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:44,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:44,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:44,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:44,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:44,880 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:39:44,917 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:44,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:44,947 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:44,947 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:44,947 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:44,947 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:44,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:44,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:44,949 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:44,970 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:44,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:44,973 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:44,973 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:44,973 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:44,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:44,974 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:44,974 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:44,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:44,976 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,004 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 [2020-10-19 18:39:45,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,006 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:45,011 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:45,011 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-19 18:39:45,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,068 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,070 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:45,072 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:45,072 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,076 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:45,122 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,128 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,132 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,133 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:45,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,204 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,205 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,216 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:45,217 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,307 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,309 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,311 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,312 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:45,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,315 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:45,377 INFO L489 LassoAnalysis]: Using template '4-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,380 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,383 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:45,383 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:45,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,437 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,441 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:45,454 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-19 18:39:45,454 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,545 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:45,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,551 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:45,552 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:45,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,557 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:45,610 INFO L489 LassoAnalysis]: Using template '2-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,615 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,618 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,618 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:45,618 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,619 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:45,620 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:45,620 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 83 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,624 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,688 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 [2020-10-19 18:39:45,690 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,690 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:45,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,690 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:45,696 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:45,696 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 84 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,734 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,791 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,792 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:45,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,792 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:45,793 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:45,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 85 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,800 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:45,837 INFO L489 LassoAnalysis]: Using template '3-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,843 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,846 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,846 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:45,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,847 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,848 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:45,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 86 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,853 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,890 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,892 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,892 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:45,892 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,892 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,892 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,899 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:45,899 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 87 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,934 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:45,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:45,976 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:45,977 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2020-10-19 18:39:45,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:45,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:45,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:45,977 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:45,978 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:45,978 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 88 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:45,985 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:46,018 INFO L489 LassoAnalysis]: Using template '4-phase'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:46,021 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,024 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,024 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,024 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:46,024 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,024 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,024 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:46,026 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:46,026 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 89 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:46,030 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:46,069 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 [2020-10-19 18:39:46,072 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,072 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,072 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,072 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,072 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:46,080 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2020-10-19 18:39:46,081 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. Waiting until toolchain timeout for monitored process 90 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:46,139 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:46,168 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,171 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,171 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,171 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 91 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:46,171 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,172 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2020-10-19 18:39:46,173 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2020-10-19 18:39:46,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:46,178 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:46,209 INFO L489 LassoAnalysis]: Using template '2-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:46,216 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,218 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,218 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:46,218 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:46,219 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,219 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,219 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:46,219 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:46,220 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 92 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:46,222 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:46,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,251 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,251 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:46,251 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,251 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,252 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:46,257 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2020-10-19 18:39:46,257 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-10-19 18:39:46,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:46,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,296 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,296 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2020-10-19 18:39:46,296 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:46,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,297 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,297 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:46,297 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:46,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:46,300 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:46,320 INFO L489 LassoAnalysis]: Using template '3-lex'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:46,323 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,324 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,324 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:46,325 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,325 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,325 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:46,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:46,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:46,329 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-19 18:39:46,351 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,353 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,353 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,353 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,353 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,353 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:46,363 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2020-10-19 18:39:46,363 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2020-10-19 18:39:46,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:46,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:46,441 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2020-10-19 18:39:46,441 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2020-10-19 18:39:46,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:46,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:46,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:46,442 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2020-10-19 18:39:46,443 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:46,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 97 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:46,450 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:46,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:39:46 BoogieIcfgContainer [2020-10-19 18:39:46,504 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:39:46,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:39:46,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:39:46,505 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:39:46,506 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:37" (3/4) ... [2020-10-19 18:39:46,510 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:39:46,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:39:46,513 INFO L168 Benchmark]: Toolchain (without parser) took 9521.72 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 316.7 MB). Free memory was 957.3 MB in the beginning and 1.2 GB in the end (delta: -192.9 MB). Peak memory consumption was 123.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:46,514 INFO L168 Benchmark]: CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:39:46,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.25 ms. Allocated memory is still 1.0 GB. Free memory was 957.3 MB in the beginning and 946.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:46,515 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:39:46,515 INFO L168 Benchmark]: Boogie Preprocessor took 90.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:46,516 INFO L168 Benchmark]: RCFGBuilder took 282.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:46,516 INFO L168 Benchmark]: BuchiAutomizer took 8812.60 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.5 MB). Peak memory consumption was 390.8 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:46,517 INFO L168 Benchmark]: Witness Printer took 5.56 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:39:46,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.21 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 283.25 ms. Allocated memory is still 1.0 GB. Free memory was 957.3 MB in the beginning and 946.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 90.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 282.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8812.60 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 192.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.5 MB). Peak memory consumption was 390.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.56 ms. Allocated memory is still 1.3 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 8.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 8.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 6 SDs, 0 SdLazy, 46 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div547 bol100 ite100 ukn100 eq124 hnf40 smp69 dnf100 smp100 tf105 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 51ms VariablesStem: 3 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 6 MotzkinApplications: 18 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - 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...