./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 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 0.2.1-dev-20ed64e [2021-08-27 13:54:50,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 13:54:50,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 13:54:50,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 13:54:50,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 13:54:50,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 13:54:50,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 13:54:50,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 13:54:50,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 13:54:50,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 13:54:50,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 13:54:50,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 13:54:50,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 13:54:50,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 13:54:50,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 13:54:50,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 13:54:50,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 13:54:50,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 13:54:50,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 13:54:50,981 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 13:54:50,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 13:54:50,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 13:54:50,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 13:54:50,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 13:54:50,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 13:54:50,995 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 13:54:50,996 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 13:54:50,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 13:54:50,999 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 13:54:51,000 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 13:54:51,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 13:54:51,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 13:54:51,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 13:54:51,005 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 13:54:51,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 13:54:51,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 13:54:51,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 13:54:51,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 13:54:51,007 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 13:54:51,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 13:54:51,009 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 13:54:51,010 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-08-27 13:54:51,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 13:54:51,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 13:54:51,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 13:54:51,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 13:54:51,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 13:54:51,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 13:54:51,039 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 13:54:51,039 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 13:54:51,039 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 13:54:51,039 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 13:54:51,040 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 13:54:51,040 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 13:54:51,040 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 13:54:51,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 13:54:51,041 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 13:54:51,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 13:54:51,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 13:54:51,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 13:54:51,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 13:54:51,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 13:54:51,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 13:54:51,051 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 13:54:51,051 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 13:54:51,051 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 13:54:51,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 13:54:51,052 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 13:54:51,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 13:54:51,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 13:54:51,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 13:54:51,054 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 13:54:51,054 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 873a06533d36987711ab5e2c177066aa117a2df5 [2021-08-27 13:54:51,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 13:54:51,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 13:54:51,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 13:54:51,415 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 13:54:51,416 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 13:54:51,417 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Collatz.c [2021-08-27 13:54:51,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b816f0/4fc004d4959942b699efb93696d2c612/FLAG5531ee647 [2021-08-27 13:54:51,839 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 13:54:51,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Collatz.c [2021-08-27 13:54:51,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b816f0/4fc004d4959942b699efb93696d2c612/FLAG5531ee647 [2021-08-27 13:54:51,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf7b816f0/4fc004d4959942b699efb93696d2c612 [2021-08-27 13:54:51,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 13:54:51,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 13:54:51,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:51,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 13:54:51,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 13:54:51,871 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:51" (1/1) ... [2021-08-27 13:54:51,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27b0666a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:51, skipping insertion in model container [2021-08-27 13:54:51,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 01:54:51" (1/1) ... [2021-08-27 13:54:51,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 13:54:51,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 13:54:52,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:52,018 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 13:54:52,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 13:54:52,039 INFO L208 MainTranslator]: Completed translation [2021-08-27 13:54:52,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52 WrapperNode [2021-08-27 13:54:52,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 13:54:52,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:52,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 13:54:52,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 13:54:52,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 13:54:52,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 13:54:52,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 13:54:52,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 13:54:52,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 13:54:52,116 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 13:54:52,117 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 13:54:52,117 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 13:54:52,118 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (1/1) ... [2021-08-27 13:54:52,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:52,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:52,142 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:52,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 13:54:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 13:54:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 13:54:52,330 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 13:54:52,331 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 13:54:52,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:52 BoogieIcfgContainer [2021-08-27 13:54:52,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 13:54:52,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 13:54:52,335 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 13:54:52,337 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 13:54:52,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:52,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 01:54:51" (1/3) ... [2021-08-27 13:54:52,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d327079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:52, skipping insertion in model container [2021-08-27 13:54:52,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:52,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 01:54:52" (2/3) ... [2021-08-27 13:54:52,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d327079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 01:54:52, skipping insertion in model container [2021-08-27 13:54:52,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 13:54:52,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:52" (3/3) ... [2021-08-27 13:54:52,341 INFO L389 chiAutomizerObserver]: Analyzing ICFG Collatz.c [2021-08-27 13:54:52,392 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 13:54:52,393 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 13:54:52,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 13:54:52,393 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 13:54:52,393 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 13:54:52,393 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 13:54:52,393 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 13:54:52,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 13:54:52,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:52,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:52,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:52,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:52,429 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:54:52,429 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:52,430 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 13:54:52,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:52,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:52,431 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:52,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:52,431 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-08-27 13:54:52,431 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:52,437 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L14-2true [2021-08-27 13:54:52,437 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~y~0 > 1); 6#L14true assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 8#L14-2true [2021-08-27 13:54:52,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,442 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-08-27 13:54:52,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691018577] [2021-08-27 13:54:52,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,506 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,526 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-08-27 13:54:52,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295092296] [2021-08-27 13:54:52,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,560 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,571 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:52,573 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-08-27 13:54:52,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:52,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081903738] [2021-08-27 13:54:52,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:52,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,590 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:52,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:52,740 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:52,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:52,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:52,741 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:52,741 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:52,741 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:52,741 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:52,741 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:52,741 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-08-27 13:54:52,741 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:52,742 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:52,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:52,898 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:52,898 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:52,900 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:52,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:52,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:52,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 13:54:52,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:52,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:52,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:52,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:52,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:52,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:52,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 13:54:52,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:52,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:53,034 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:53,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,042 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:53,042 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:53,042 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:53,042 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:53,042 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:53,042 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,043 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:53,043 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:53,043 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration1_Loop [2021-08-27 13:54:53,043 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:53,043 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:53,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:53,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:53,116 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:53,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,121 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:53,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:53,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:53,143 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:53,143 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:53,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:53,147 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:53,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:53,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 13:54:53,164 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:54:53,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:54:53,173 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:54:53,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 13:54:53,179 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:54:53,179 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:54:53,180 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:54:53,180 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-08-27 13:54:53,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,209 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:54:53,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,238 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:53,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,249 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:54:53,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:53,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:53,311 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:53,312 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,350 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 8 states. [2021-08-27 13:54:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 13:54:53,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-08-27 13:54:53,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-08-27 13:54:53,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:54:53,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-08-27 13:54:53,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-08-27 13:54:53,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:53,364 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-08-27 13:54:53,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:54:53,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-08-27 13:54:53,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-08-27 13:54:53,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:53,366 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:54:53,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-08-27 13:54:53,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-08-27 13:54:53,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-08-27 13:54:53,387 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:54:53,387 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-08-27 13:54:53,387 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 13:54:53,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-08-27 13:54:53,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:53,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:53,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:53,389 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 13:54:53,389 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:53,389 INFO L791 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 68#L14-2 assume !!(main_~y~0 > 1); 69#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 70#L14-2 [2021-08-27 13:54:53,389 INFO L793 eck$LassoCheckResult]: Loop: 70#L14-2 assume !!(main_~y~0 > 1); 73#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 70#L14-2 [2021-08-27 13:54:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,390 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-08-27 13:54:53,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923044451] [2021-08-27 13:54:53,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,407 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:53,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,420 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:53,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-08-27 13:54:53,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215913256] [2021-08-27 13:54:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,437 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:53,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,455 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2021-08-27 13:54:53,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56561979] [2021-08-27 13:54:53,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,473 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:53,482 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:53,507 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:53,507 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:53,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:53,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:53,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:53,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:53,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:53,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-08-27 13:54:53,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:53,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:53,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:53,560 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:53,560 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:53,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,561 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 13:54:53,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:53,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:53,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,618 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 13:54:53,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:53,628 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:53,682 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:53,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,691 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:53,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:53,692 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:53,692 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:53,692 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:53,692 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,692 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:53,692 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:53,692 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration2_Loop [2021-08-27 13:54:53,692 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:53,692 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:53,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:53,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:53,748 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:53,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,750 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:53,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:53,770 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:53,770 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:53,770 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:53,770 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:53,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 13:54:53,773 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:53,773 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:53,792 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:54:53,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:54:53,796 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:54:53,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:53,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:53,799 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:53,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 13:54:53,823 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:54:53,823 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:54:53,824 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:54:53,824 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-08-27 13:54:53,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:53,843 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:54:53,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:53,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:53,874 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:54:53,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:53,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:53,890 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:53,890 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,899 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-08-27 13:54:53,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:54:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:54:53,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-08-27 13:54:53,901 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,901 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:54:53,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,902 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-08-27 13:54:53,902 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:53,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-08-27 13:54:53,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:53,903 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-08-27 13:54:53,903 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-08-27 13:54:53,903 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 13:54:53,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-08-27 13:54:53,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:53,904 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:54:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-08-27 13:54:53,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-08-27 13:54:53,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-08-27 13:54:53,906 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:54:53,906 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-08-27 13:54:53,906 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-27 13:54:53,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2021-08-27 13:54:53,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 13:54:53,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:53,907 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:53,907 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2021-08-27 13:54:53,907 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 13:54:53,907 INFO L791 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 122#L14-2 assume !!(main_~y~0 > 1); 123#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 124#L14-2 assume !!(main_~y~0 > 1); 129#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 127#L14-2 [2021-08-27 13:54:53,907 INFO L793 eck$LassoCheckResult]: Loop: 127#L14-2 assume !!(main_~y~0 > 1); 128#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 127#L14-2 [2021-08-27 13:54:53,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:53,908 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2021-08-27 13:54:53,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:53,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778361203] [2021-08-27 13:54:53,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:53,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:54,020 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 13:54:54,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778361203] [2021-08-27 13:54:54,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778361203] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 13:54:54,021 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902753258] [2021-08-27 13:54:54,021 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 13:54:54,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 13:54:54,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,029 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:54,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 13:54:54,059 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 13:54:54,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 13:54:54,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:54,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902753258] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 13:54:54,134 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 13:54:54,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-27 13:54:54,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140770303] [2021-08-27 13:54:54,137 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-08-27 13:54:54,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-08-27 13:54:54,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:54,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273591238] [2021-08-27 13:54:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:54,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,142 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:54,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,146 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:54,166 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:54,166 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:54,167 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:54,167 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:54,167 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:54,167 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,167 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:54,167 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:54,167 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-08-27 13:54:54,167 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:54,168 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:54,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:54,215 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:54,216 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:54,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:54,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:54,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-08-27 13:54:54,264 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-08-27 13:54:54,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,267 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-08-27 13:54:54,269 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:54,269 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:54,313 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:54,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:54,317 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:54,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:54,317 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:54,317 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:54,317 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:54,317 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,317 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:54,317 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:54,317 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration3_Loop [2021-08-27 13:54:54,317 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:54,317 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:54,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:54,393 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:54,393 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:54,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,394 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-08-27 13:54:54,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:54,406 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:54,406 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:54,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:54,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:54,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:54,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:54,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:54,424 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 13:54:54,428 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-27 13:54:54,428 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-27 13:54:54,429 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,430 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,436 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 13:54:54,436 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-27 13:54:54,436 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 13:54:54,436 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-08-27 13:54:54,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-08-27 13:54:54,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:54,462 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-27 13:54:54,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,503 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:54,521 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:54,522 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,536 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-08-27 13:54:54,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:54:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:54:54,537 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:54:54,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:54,537 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:54:54,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,571 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:54,589 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:54,590 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,598 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 20 transitions. Complement of second has 5 states. [2021-08-27 13:54:54,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:54:54,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-08-27 13:54:54,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:54:54,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:54,600 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-08-27 13:54:54,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 13:54:54,658 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 13:54:54,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 13:54:54,668 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 13:54:54,684 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 13:54:54,684 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,699 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 23 transitions. Complement of second has 4 states. [2021-08-27 13:54:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-08-27 13:54:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-08-27 13:54:54,701 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2021-08-27 13:54:54,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:54,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-08-27 13:54:54,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:54,702 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2021-08-27 13:54:54,702 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 13:54:54,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2021-08-27 13:54:54,706 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:54:54,707 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2021-08-27 13:54:54,707 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-08-27 13:54:54,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-08-27 13:54:54,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2021-08-27 13:54:54,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:54,708 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2021-08-27 13:54:54,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2021-08-27 13:54:54,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2021-08-27 13:54:54,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-08-27 13:54:54,710 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-08-27 13:54:54,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 13:54:54,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 13:54:54,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-08-27 13:54:54,715 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 13:54:54,737 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2021-08-27 13:54:54,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 13:54:54,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2021-08-27 13:54:54,740 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-08-27 13:54:54,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 8 states and 11 transitions. [2021-08-27 13:54:54,740 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-08-27 13:54:54,740 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-08-27 13:54:54,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-08-27 13:54:54,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-08-27 13:54:54,741 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-08-27 13:54:54,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-08-27 13:54:54,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2021-08-27 13:54:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 13:54:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-08-27 13:54:54,742 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-27 13:54:54,743 INFO L587 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-08-27 13:54:54,743 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-27 13:54:54,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2021-08-27 13:54:54,743 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-08-27 13:54:54,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 13:54:54,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 13:54:54,744 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 13:54:54,744 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-08-27 13:54:54,744 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-08-27 13:54:54,744 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-08-27 13:54:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-08-27 13:54:54,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:54,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963913051] [2021-08-27 13:54:54,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:54,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,751 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:54,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2021-08-27 13:54:54,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:54,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597745640] [2021-08-27 13:54:54,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:54,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,783 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,791 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:54,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:54,794 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2021-08-27 13:54:54,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:54,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435131505] [2021-08-27 13:54:54,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:54,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:54,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,802 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:54,818 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:54,862 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:54,863 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:54,863 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:54,863 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:54,863 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:54,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:54,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:54,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-08-27 13:54:54,864 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:54,864 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:54,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:54,920 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:54,920 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:54,920 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,925 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-08-27 13:54:54,928 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:54,928 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:54,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:54,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:54,966 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:54,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-08-27 13:54:54,969 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:54,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:55,065 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:55,069 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,069 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:55,069 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:55,069 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:55,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:55,069 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:55,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:55,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:55,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-08-27 13:54:55,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:55,069 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:55,070 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:55,158 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:55,159 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,165 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-08-27 13:54:55,170 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:55,177 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,177 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,177 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,177 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:55,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:55,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,184 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,199 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,200 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 13:54:55,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,201 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,202 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-08-27 13:54:55,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,209 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:55,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,210 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:55,214 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:55,214 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,225 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,252 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-08-27 13:54:55,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,257 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-08-27 13:54:55,260 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,269 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:55,269 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,269 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:55,273 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:55,273 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,314 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-08-27 13:54:55,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,315 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-08-27 13:54:55,321 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:55,329 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,329 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:55,333 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:55,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,339 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,355 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-08-27 13:54:55,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,356 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-08-27 13:54:55,358 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,365 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:55,365 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:55,365 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,366 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:55,372 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:55,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,385 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,404 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,405 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-08-27 13:54:55,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,407 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-08-27 13:54:55,409 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,416 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:55,417 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:55,417 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,417 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,417 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,417 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:55,420 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:55,420 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,428 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,444 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-08-27 13:54:55,444 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-08-27 13:54:55,444 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,445 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-08-27 13:54:55,447 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,454 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:55,454 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:55,454 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,454 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:55,462 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:55,462 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,511 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-08-27 13:54:55,511 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,513 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,536 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:55,536 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:55,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,536 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:55,539 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:55,540 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-08-27 13:54:55,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,584 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-08-27 13:54:55,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,585 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-08-27 13:54:55,588 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:55,596 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:55,596 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:55,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:55,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:55,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:55,596 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:54:55,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:55,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:55,621 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:55,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,656 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:55,656 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:55,656 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:55,656 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:55,656 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:55,657 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,657 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:55,657 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:55,657 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-08-27 13:54:55,657 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:55,657 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:55,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,739 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:55,740 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:55,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,745 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,754 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:55,754 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:55,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-08-27 13:54:55,773 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:54:55,774 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:54:55,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,801 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-08-27 13:54:55,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:55,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:55,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:55,861 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:55,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:55,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:55,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-08-27 13:54:55,982 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:55,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:55,986 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:55,986 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:55,986 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:55,986 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:55,986 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:55,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:55,986 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:55,986 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:55,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-08-27 13:54:55,986 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:55,986 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:55,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:55,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:56,076 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:56,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:56,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,080 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-08-27 13:54:56,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:56,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:56,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:56,108 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,126 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-08-27 13:54:56,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,134 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:56,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:56,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,135 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-08-27 13:54:56,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,154 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-08-27 13:54:56,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,163 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:56,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:56,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,173 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,191 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-08-27 13:54:56,191 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 13:54:56,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,195 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-08-27 13:54:56,196 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,203 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,203 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,203 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,211 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:54:56,211 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:54:56,228 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,248 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,249 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-08-27 13:54:56,256 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,272 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,272 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:56,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-08-27 13:54:56,292 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,292 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-08-27 13:54:56,295 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,302 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,303 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:56,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,321 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-08-27 13:54:56,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,323 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-08-27 13:54:56,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,333 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,340 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:56,340 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:54:56,347 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2021-08-27 13:54:56,363 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,364 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-08-27 13:54:56,366 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,373 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,373 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,374 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:56,374 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,417 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-08-27 13:54:56,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,418 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-08-27 13:54:56,420 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,427 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,427 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,427 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,428 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:56,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,456 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2021-08-27 13:54:56,474 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-08-27 13:54:56,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,475 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-08-27 13:54:56,477 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,484 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:56,493 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-08-27 13:54:56,493 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-08-27 13:54:56,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,530 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-08-27 13:54:56,532 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,540 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:56,541 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:56,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,542 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,561 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-08-27 13:54:56,563 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:56,570 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,570 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:56,571 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:56,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,635 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-08-27 13:54:56,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,636 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-08-27 13:54:56,639 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,647 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,647 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:56,647 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,647 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,647 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,653 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:54:56,653 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:54:56,672 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,699 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,701 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,709 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,718 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,718 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:56,718 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,718 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,718 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,718 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,719 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:56,719 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-08-27 13:54:56,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,755 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-08-27 13:54:56,758 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,765 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,766 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:56,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,766 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:56,767 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:56,767 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,768 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,784 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2021-08-27 13:54:56,784 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-08-27 13:54:56,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,785 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-08-27 13:54:56,787 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,794 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,794 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:56,794 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,795 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,795 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,802 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:56,803 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:54:56,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,848 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,870 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,870 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:56,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,870 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,872 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:56,872 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-08-27 13:54:56,888 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,913 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-08-27 13:54:56,917 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,926 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,926 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:56,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:56,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,926 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:56,927 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:56,927 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:56,944 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:56,968 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:56,968 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-08-27 13:54:56,968 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:56,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:56,969 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:56,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-08-27 13:54:56,972 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:56,980 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:56,980 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:56,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:56,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:56,981 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:56,990 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-08-27 13:54:56,990 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-08-27 13:54:57,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,061 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,062 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,069 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,077 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,078 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:57,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,078 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:57,080 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:57,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-08-27 13:54:57,092 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,115 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,116 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-08-27 13:54:57,119 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,128 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,128 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:57,128 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,128 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:57,130 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:57,130 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,143 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,168 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-08-27 13:54:57,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,169 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-08-27 13:54:57,172 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,180 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,180 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:57,180 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,180 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,180 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:57,188 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:57,188 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:54:57,201 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,230 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-08-27 13:54:57,232 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,240 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,241 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:57,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,241 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:57,242 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:57,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,297 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,301 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-08-27 13:54:57,310 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,310 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:57,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,310 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:57,311 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:57,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,341 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-08-27 13:54:57,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,342 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-08-27 13:54:57,345 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,352 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,352 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:57,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,352 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:54:57,363 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-08-27 13:54:57,364 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-08-27 13:54:57,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,417 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,418 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,441 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,450 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,450 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:57,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,450 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:54:57,451 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:57,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-08-27 13:54:57,464 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-08-27 13:54:57,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,486 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-08-27 13:54:57,488 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,496 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:57,497 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:57,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,497 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:54:57,499 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:57,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2021-08-27 13:54:57,518 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-08-27 13:54:57,518 INFO L791 eck$LassoCheckResult]: Stem: 296#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 297#L14-2 assume !!(main_~y~0 > 1); 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-08-27 13:54:57,518 INFO L793 eck$LassoCheckResult]: Loop: 298#L14 assume !(0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2));main_~y~0 := 1 + 3 * main_~y~0; 299#L14-2 assume !!(main_~y~0 > 1); 300#L14 assume 0 == (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then main_~y~0 % 2 - 2 else main_~y~0 % 2);main_~y~0 := (if main_~y~0 < 0 && 0 != main_~y~0 % 2 then 1 + main_~y~0 / 2 else main_~y~0 / 2); 301#L14-2 assume !!(main_~y~0 > 1); 298#L14 [2021-08-27 13:54:57,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:57,519 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 3 times [2021-08-27 13:54:57,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:57,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595879814] [2021-08-27 13:54:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:57,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,529 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,535 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:57,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:57,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 2 times [2021-08-27 13:54:57,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:57,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36373394] [2021-08-27 13:54:57,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:57,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,541 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:57,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 13:54:57,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1848815782, now seen corresponding path program 4 times [2021-08-27 13:54:57,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 13:54:57,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568789117] [2021-08-27 13:54:57,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 13:54:57,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 13:54:57,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,557 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 13:54:57,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 13:54:57,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 13:54:57,600 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:57,600 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:57,600 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:57,600 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:57,600 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:57,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:57,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:57,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-08-27 13:54:57,601 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:57,601 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:57,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:57,658 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:57,658 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:57,659 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,659 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,669 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:57,669 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:57,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-08-27 13:54:57,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,726 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-08-27 13:54:57,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:57,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:57,811 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:57,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,816 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:57,816 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:57,816 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:57,816 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:57,816 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:57,816 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,816 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:57,816 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:57,816 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Loop [2021-08-27 13:54:57,816 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:57,816 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:57,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:57,873 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:57,874 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:57,874 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,875 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:57,889 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:57,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:57,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-08-27 13:54:57,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:57,925 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 13:54:57,925 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,926 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-08-27 13:54:57,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:57,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:57,937 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:57,937 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:57,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:57,947 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:57,950 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:57,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:57,971 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:57,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-08-27 13:54:57,993 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-08-27 13:54:57,993 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:57,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:57,994 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:57,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-08-27 13:54:57,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:58,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,005 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:58,008 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:58,008 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:58,057 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-08-27 13:54:58,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,061 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-08-27 13:54:58,063 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,071 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:58,071 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,071 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:58,075 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:58,075 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-08-27 13:54:58,099 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-08-27 13:54:58,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,100 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-08-27 13:54:58,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,108 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:58,108 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:58,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,109 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:58,110 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:58,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,130 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-08-27 13:54:58,130 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-08-27 13:54:58,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,131 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-08-27 13:54:58,169 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,176 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:58,176 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:58,176 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,176 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,176 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,176 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:58,179 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:58,179 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,204 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:58,204 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-08-27 13:54:58,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,205 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-08-27 13:54:58,206 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,214 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:58,214 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:58,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,214 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:58,218 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:58,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,233 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,248 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2021-08-27 13:54:58,249 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-08-27 13:54:58,249 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,249 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-08-27 13:54:58,251 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,258 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:58,258 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:58,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,258 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:58,260 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:58,260 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-08-27 13:54:58,280 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-08-27 13:54:58,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,281 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-08-27 13:54:58,282 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,289 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:58,289 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:58,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,289 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:54:58,294 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:58,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,300 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2021-08-27 13:54:58,467 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:58,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:58,468 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:58,468 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:58,468 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-27 13:54:58,468 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,468 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:58,468 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:58,468 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-08-27 13:54:58,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:58,469 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:58,469 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-27 13:54:58,469 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-27 13:54:58,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,588 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:58,588 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-27 13:54:58,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,593 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-08-27 13:54:58,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:58,595 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:58,603 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:54:58,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:54:58,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-08-27 13:54:58,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,619 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-08-27 13:54:58,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:58,632 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:58,639 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-27 13:54:58,639 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-27 13:54:58,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Ended with exit code 0 [2021-08-27 13:54:58,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,655 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-08-27 13:54:58,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-27 13:54:58,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:58,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:58,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,688 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-08-27 13:54:58,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-27 13:54:58,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-27 13:54:58,762 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-27 13:54:58,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2021-08-27 13:54:58,765 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 13:54:58,765 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 13:54:58,765 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 13:54:58,765 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 13:54:58,765 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 13:54:58,765 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,765 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 13:54:58,765 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 13:54:58,765 INFO L133 ssoRankerPreferences]: Filename of dumped script: Collatz.c_Iteration4_Lasso [2021-08-27 13:54:58,766 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 13:54:58,766 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 13:54:58,766 WARN L313 ript$VariableManager]: TermVariabe |aux_div_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-27 13:54:58,766 WARN L313 ript$VariableManager]: TermVariabe |aux_mod_v_ULTIMATE.start_main_#t~nondet0_9_44| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-27 13:54:58,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 13:54:58,886 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 13:54:58,886 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 13:54:58,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,887 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-08-27 13:54:58,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:58,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:58,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:58,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,896 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Ended with exit code 0 [2021-08-27 13:54:58,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,913 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-08-27 13:54:58,914 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,921 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:58,921 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:58,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:58,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 13:54:58,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:58,922 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-08-27 13:54:58,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:58,938 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:58,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-08-27 13:54:58,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:58,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:58,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:58,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:58,950 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 13:54:58,954 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:54:58,954 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 13:54:58,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:58,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-08-27 13:54:58,975 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-08-27 13:54:58,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:58,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,001 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,010 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,018 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,018 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:59,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-08-27 13:54:59,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-08-27 13:54:59,052 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,053 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-08-27 13:54:59,055 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,062 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,062 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,062 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,062 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:59,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,063 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-08-27 13:54:59,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,079 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-08-27 13:54:59,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,088 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,093 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:54:59,094 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:54:59,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,125 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-08-27 13:54:59,125 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,126 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-08-27 13:54:59,127 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,134 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,135 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,135 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2021-08-27 13:54:59,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,153 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-08-27 13:54:59,154 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,160 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,161 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,161 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,161 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,161 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-08-27 13:54:59,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,179 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-08-27 13:54:59,181 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,189 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,189 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,189 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,203 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:59,203 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:54:59,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,240 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,240 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-08-27 13:54:59,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,241 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,254 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,262 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,263 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,263 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,263 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:59,263 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-08-27 13:54:59,276 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2021-08-27 13:54:59,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,296 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-08-27 13:54:59,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,333 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,333 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,333 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,333 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,333 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,334 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:59,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,335 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,350 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,350 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,351 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-08-27 13:54:59,353 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 13:54:59,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,360 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,360 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,369 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-08-27 13:54:59,369 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-08-27 13:54:59,386 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-08-27 13:54:59,402 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-08-27 13:54:59,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,403 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-08-27 13:54:59,404 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,411 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,411 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,411 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,411 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,411 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,412 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:59,412 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,413 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,428 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2021-08-27 13:54:59,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,429 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-08-27 13:54:59,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,438 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,438 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,438 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,439 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-08-27 13:54:59,439 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,457 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-08-27 13:54:59,459 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,466 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,466 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,466 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-08-27 13:54:59,472 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-08-27 13:54:59,472 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-08-27 13:54:59,484 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Ended with exit code 0 [2021-08-27 13:54:59,500 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-08-27 13:54:59,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,501 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-08-27 13:54:59,503 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,510 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,510 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:59,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,510 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,511 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,513 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,529 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-08-27 13:54:59,531 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,538 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,538 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:59,538 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,538 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,539 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,539 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,541 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2021-08-27 13:54:59,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,559 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-08-27 13:54:59,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,568 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,568 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-08-27 13:54:59,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,568 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,568 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,576 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:59,576 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:54:59,605 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,645 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-08-27 13:54:59,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,646 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-08-27 13:54:59,655 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,664 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,664 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:59,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,664 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,665 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:59,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,688 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,713 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,717 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-08-27 13:54:59,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,729 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,729 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:59,729 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,729 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,729 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,731 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-08-27 13:54:59,731 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,760 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,784 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,789 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-08-27 13:54:59,791 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,800 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,800 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:54:59,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,800 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-08-27 13:54:59,810 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-08-27 13:54:59,810 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-08-27 13:54:59,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,874 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-08-27 13:54:59,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,877 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-08-27 13:54:59,880 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,888 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,888 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,888 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,889 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,904 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-08-27 13:54:59,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,929 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-08-27 13:54:59,931 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,939 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,939 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:54:59,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,940 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,941 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-08-27 13:54:59,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:54:59,956 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:54:59,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-08-27 13:54:59,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:54:59,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:54:59,977 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:54:59,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-08-27 13:54:59,979 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:54:59,985 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:54:59,985 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-08-27 13:54:59,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:54:59,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:54:59,986 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-08-27 13:54:59,997 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-08-27 13:54:59,998 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-08-27 13:55:00,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:00,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:00,039 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-08-27 13:55:00,039 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:00,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:00,040 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:00,049 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:00,057 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:55:00,057 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:55:00,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:00,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:00,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:00,057 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:55:00,058 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:00,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:00,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-08-27 13:55:00,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:00,097 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:00,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:00,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:00,099 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:00,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-08-27 13:55:00,101 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:00,109 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:55:00,109 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:55:00,109 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 13:55:00,109 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:00,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:00,109 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:55:00,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 13:55:00,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 13:55:00,128 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:00,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:00,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 13:55:00,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 13:55:00,153 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 13:55:00,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-08-27 13:55:00,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 13:55:00,163 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-08-27 13:55:00,163 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-08-27 13:55:00,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 13:55:00,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 13:55:00,163 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-08-27 13:55:00,175 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-08-27 13:55:00,175 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-08-27 13:55:00,212 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 13:55:00,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:00,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 01:55:00 BoogieIcfgContainer [2021-08-27 13:55:00,245 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 13:55:00,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 13:55:00,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 13:55:00,247 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 13:55:00,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 01:54:52" (3/4) ... [2021-08-27 13:55:00,249 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 13:55:00,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 13:55:00,251 INFO L168 Benchmark]: Toolchain (without parser) took 8384.82 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 36.0 MB in the beginning and 85.8 MB in the end (delta: -49.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:00,252 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 44.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:00,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.22 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 27.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:00,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.48 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 41.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:00,253 INFO L168 Benchmark]: Boogie Preprocessor took 16.61 ms. Allocated memory is still 56.6 MB. Free memory was 41.0 MB in the beginning and 40.2 MB in the end (delta: 758.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:00,253 INFO L168 Benchmark]: RCFGBuilder took 217.12 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 31.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:00,253 INFO L168 Benchmark]: BuchiAutomizer took 7910.51 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 31.7 MB in the beginning and 85.8 MB in the end (delta: -54.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 16.1 GB. [2021-08-27 13:55:00,254 INFO L168 Benchmark]: Witness Printer took 4.10 ms. Allocated memory is still 111.1 MB. Free memory is still 85.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 13:55:00,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 38.9 MB in the end (delta: 44.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 172.22 ms. Allocated memory is still 56.6 MB. Free memory was 35.7 MB in the beginning and 27.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.48 ms. Allocated memory is still 56.6 MB. Free memory was 27.2 MB in the beginning and 41.0 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.61 ms. Allocated memory is still 56.6 MB. Free memory was 41.0 MB in the beginning and 40.2 MB in the end (delta: 758.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 217.12 ms. Allocated memory is still 56.6 MB. Free memory was 40.1 MB in the beginning and 31.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 7910.51 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 31.7 MB in the beginning and 85.8 MB in the end (delta: -54.1 MB). Peak memory consumption was 61.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.10 ms. Allocated memory is still 111.1 MB. Free memory is still 85.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic) and one module whose termination is unknown.One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 7.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 4. Automata minimization 15.9ms AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 20 SDslu, 6 SDs, 0 SdLazy, 44 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.9ms Time LassoAnalysisResults: nont0 unkn1 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div517 bol100 ite100 ukn100 eq125 hnf42 smp72 dnf100 smp100 tf105 neg99 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 3 Time: 63ms VariablesStem: 4 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 [2021-08-27 13:55:00,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-27 13:55:00,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...