./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Binomial.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Binomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD --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 c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/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: ERROR: ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:55:02,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:55:02,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:55:02,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:55:02,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:55:02,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:55:02,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:55:02,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:55:02,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:55:02,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:55:02,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:55:02,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:55:02,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:55:02,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:55:02,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:55:02,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:55:02,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:55:02,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:55:02,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:55:02,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:55:02,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:55:02,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:55:02,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:55:02,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:55:02,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:55:02,897 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:55:02,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:55:02,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:55:02,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:55:02,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:55:02,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:55:02,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:55:02,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:55:02,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:55:02,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:55:02,914 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:55:02,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:55:02,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:55:02,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:55:02,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:55:02,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:55:02,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:55:02,968 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:55:02,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:55:02,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:55:02,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:55:02,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:55:02,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:55:02,970 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:55:02,980 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:55:02,980 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:55:02,980 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:55:02,981 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:55:02,982 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:55:02,982 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:55:02,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:55:02,982 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:55:02,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:55:02,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:55:02,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:55:02,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:55:02,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:55:02,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:55:02,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:55:02,988 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:55:02,988 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c204b56aba09d3ce87e17edffdff1d33aa0b4dc87a1e1140339548dffa982588 [2021-10-28 23:55:03,240 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:55:03,266 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:55:03,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:55:03,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:55:03,272 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:55:03,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-28 23:55:03,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/data/f40530067/ce8c5b12817647a4adf3c750980018a0/FLAG732ee9543 [2021-10-28 23:55:03,750 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:55:03,751 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/sv-benchmarks/c/termination-numeric/Binomial.c [2021-10-28 23:55:03,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/data/f40530067/ce8c5b12817647a4adf3c750980018a0/FLAG732ee9543 [2021-10-28 23:55:04,157 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/data/f40530067/ce8c5b12817647a4adf3c750980018a0 [2021-10-28 23:55:04,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:55:04,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:55:04,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:04,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:55:04,168 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:55:04,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96c22af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04, skipping insertion in model container [2021-10-28 23:55:04,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:55:04,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:55:04,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:04,349 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:55:04,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:55:04,380 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:55:04,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04 WrapperNode [2021-10-28 23:55:04,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:55:04,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:04,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:55:04,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:55:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:55:04,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:55:04,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:55:04,410 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:55:04,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:55:04,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:55:04,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:55:04,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:55:04,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (1/1) ... [2021-10-28 23:55:04,438 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:04,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:04,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:04,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:55:04,490 INFO L130 BoogieDeclarations]: Found specification of procedure fact [2021-10-28 23:55:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure fact [2021-10-28 23:55:04,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:55:04,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:55:04,660 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:55:04,661 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-28 23:55:04,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:04 BoogieIcfgContainer [2021-10-28 23:55:04,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:55:04,663 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:55:04,664 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:55:04,667 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:55:04,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:04,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:55:04" (1/3) ... [2021-10-28 23:55:04,683 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793a6a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:04, skipping insertion in model container [2021-10-28 23:55:04,683 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:04,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:55:04" (2/3) ... [2021-10-28 23:55:04,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@793a6a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:55:04, skipping insertion in model container [2021-10-28 23:55:04,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:55:04,684 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:55:04" (3/3) ... [2021-10-28 23:55:04,685 INFO L389 chiAutomizerObserver]: Analyzing ICFG Binomial.c [2021-10-28 23:55:04,744 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:55:04,745 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:55:04,745 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:55:04,745 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:55:04,745 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:55:04,745 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:55:04,745 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:55:04,745 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:55:04,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:55:04,782 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:55:04,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:04,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:04,788 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:04,788 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:55:04,788 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:55:04,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:55:04,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:55:04,794 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:04,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:04,795 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:04,795 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 23:55:04,818 INFO L791 eck$LassoCheckResult]: Stem: 18#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 17#L35true assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 27#L38true assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 13#L41-3true [2021-10-28 23:55:04,818 INFO L793 eck$LassoCheckResult]: Loop: 13#L41-3true assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 22#L42-3true assume !(main_~k~0 <= main_~x~0); 14#L41-2true main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 13#L41-3true [2021-10-28 23:55:04,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:04,839 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 1 times [2021-10-28 23:55:04,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:04,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179090284] [2021-10-28 23:55:04,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:04,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:04,924 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:04,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:04,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:04,974 INFO L85 PathProgramCache]: Analyzing trace with hash 56819, now seen corresponding path program 1 times [2021-10-28 23:55:04,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:04,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872835175] [2021-10-28 23:55:04,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:04,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:04,994 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:05,000 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:05,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1158688391, now seen corresponding path program 1 times [2021-10-28 23:55:05,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:05,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343092202] [2021-10-28 23:55:05,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:05,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:05,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:05,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343092202] [2021-10-28 23:55:05,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343092202] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:05,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:05,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:55:05,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97286765] [2021-10-28 23:55:05,187 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:05,188 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:05,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:05,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:05,189 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:55:05,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,189 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:05,189 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:05,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-28 23:55:05,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:05,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:05,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:05,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:05,292 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:05,293 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:55:05,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:05,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:05,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:55:05,343 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:05,343 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:05,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:05,380 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:05,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:05,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:55:05,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:05,471 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,472 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:55:05,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:05,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:55:05,653 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:55:05,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:05,659 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:05,659 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:05,659 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:05,659 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:05,659 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:55:05,660 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,660 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:05,660 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:05,660 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration1_Loop [2021-10-28 23:55:05,660 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:05,660 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:05,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:05,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:05,724 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:05,728 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:55:05,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,743 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,747 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:05,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:05,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:05,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:05,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:05,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:05,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:05,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:05,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:55:05,783 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:05,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:05,814 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 23:55:05,816 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:05,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:05,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:05,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:05,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:05,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:05,826 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:05,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:05,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:55:05,867 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2021-10-28 23:55:05,867 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2021-10-28 23:55:05,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:05,874 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:05,879 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:55:05,880 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:55:05,880 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:55:05,880 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2021-10-28 23:55:05,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 23:55:05,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:05,916 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:55:05,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:05,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:05,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:55:05,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:05,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:05,982 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:55:05,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:06,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:55:06,109 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-28 23:55:06,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:06,214 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 72 states and 105 transitions. Complement of second has 11 states. [2021-10-28 23:55:06,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-28 23:55:06,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:06,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 53 transitions. [2021-10-28 23:55:06,221 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 23:55:06,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:06,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 23:55:06,222 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:06,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 53 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 23:55:06,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:06,224 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 105 transitions. [2021-10-28 23:55:06,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 18 [2021-10-28 23:55:06,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 32 states and 47 transitions. [2021-10-28 23:55:06,251 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2021-10-28 23:55:06,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2021-10-28 23:55:06,252 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 47 transitions. [2021-10-28 23:55:06,252 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:06,253 INFO L681 BuchiCegarLoop]: Abstraction has 32 states and 47 transitions. [2021-10-28 23:55:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 47 transitions. [2021-10-28 23:55:06,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2021-10-28 23:55:06,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 20 states have internal predecessors, (27), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:55:06,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 41 transitions. [2021-10-28 23:55:06,276 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 41 transitions. [2021-10-28 23:55:06,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:06,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:55:06,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 23:55:06,281 INFO L87 Difference]: Start difference. First operand 29 states and 41 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:55:06,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:06,336 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2021-10-28 23:55:06,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:55:06,337 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2021-10-28 23:55:06,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 23:55:06,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2021-10-28 23:55:06,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2021-10-28 23:55:06,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-28 23:55:06,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2021-10-28 23:55:06,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:06,346 INFO L681 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2021-10-28 23:55:06,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2021-10-28 23:55:06,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2021-10-28 23:55:06,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 16 states have internal predecessors, (20), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-10-28 23:55:06,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2021-10-28 23:55:06,355 INFO L704 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-28 23:55:06,355 INFO L587 BuchiCegarLoop]: Abstraction has 25 states and 34 transitions. [2021-10-28 23:55:06,355 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:55:06,355 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 34 transitions. [2021-10-28 23:55:06,356 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 23:55:06,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:06,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:06,358 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:06,358 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:06,358 INFO L791 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 226#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 233#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 234#L41-3 [2021-10-28 23:55:06,360 INFO L793 eck$LassoCheckResult]: Loop: 234#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 229#L42-3 assume !!(main_~k~0 <= main_~x~0); 228#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 212#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#73#return; 216#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#75#return; 218#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 213#factENTRY ~n := #in~n; 227#L25 assume ~n <= 0;#res := 1; 224#factFINAL assume true; 214#factEXIT >#77#return; 222#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 230#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 231#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 232#L42-3 assume !(main_~k~0 <= main_~x~0); 236#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 234#L41-3 [2021-10-28 23:55:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 2 times [2021-10-28 23:55:06,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:06,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074872356] [2021-10-28 23:55:06,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:06,371 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:06,389 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:06,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:06,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1052427359, now seen corresponding path program 1 times [2021-10-28 23:55:06,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:06,391 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734483650] [2021-10-28 23:55:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:06,407 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:06,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490275042] [2021-10-28 23:55:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:06,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:06,418 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:06,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-28 23:55:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:06,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 23:55:06,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:55:06,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:06,611 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734483650] [2021-10-28 23:55:06,611 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:06,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490275042] [2021-10-28 23:55:06,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490275042] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:06,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:06,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:55:06,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611885072] [2021-10-28 23:55:06,613 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:06,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:06,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:55:06,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:55:06,614 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. cyclomatic complexity: 11 Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 states have internal predecessors, (14), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-10-28 23:55:06,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:06,697 INFO L93 Difference]: Finished difference Result 33 states and 49 transitions. [2021-10-28 23:55:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:55:06,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2021-10-28 23:55:06,700 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 25 [2021-10-28 23:55:06,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 49 transitions. [2021-10-28 23:55:06,702 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2021-10-28 23:55:06,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2021-10-28 23:55:06,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 49 transitions. [2021-10-28 23:55:06,705 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:06,705 INFO L681 BuchiCegarLoop]: Abstraction has 33 states and 49 transitions. [2021-10-28 23:55:06,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 49 transitions. [2021-10-28 23:55:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 27. [2021-10-28 23:55:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 7 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2021-10-28 23:55:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 41 transitions. [2021-10-28 23:55:06,716 INFO L704 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-28 23:55:06,716 INFO L587 BuchiCegarLoop]: Abstraction has 27 states and 41 transitions. [2021-10-28 23:55:06,716 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:55:06,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 41 transitions. [2021-10-28 23:55:06,718 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2021-10-28 23:55:06,718 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:06,718 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:06,721 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:06,721 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:06,721 INFO L791 eck$LassoCheckResult]: Stem: 358#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 359#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 368#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 369#L41-3 [2021-10-28 23:55:06,722 INFO L793 eck$LassoCheckResult]: Loop: 369#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 363#L42-3 assume !!(main_~k~0 <= main_~x~0); 361#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 354#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#67#return; 350#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#69#return; 352#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 347#factENTRY ~n := #in~n; 360#L25 assume !(~n <= 0); 349#L26 call #t~ret0 := fact(~n - 1);< 347#factENTRY ~n := #in~n; 360#L25 assume ~n <= 0;#res := 1; 357#factFINAL assume true; 348#factEXIT >#65#return; 355#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 362#factFINAL assume true; 372#factEXIT >#71#return; 356#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 370#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 366#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 367#L42-3 assume !(main_~k~0 <= main_~x~0); 371#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 369#L41-3 [2021-10-28 23:55:06,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:06,723 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 3 times [2021-10-28 23:55:06,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:06,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521950574] [2021-10-28 23:55:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:06,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:06,733 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:06,743 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:06,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:06,743 INFO L85 PathProgramCache]: Analyzing trace with hash 595054747, now seen corresponding path program 1 times [2021-10-28 23:55:06,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:06,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299703966] [2021-10-28 23:55:06,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:06,761 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:06,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [783208450] [2021-10-28 23:55:06,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:06,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:06,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:06,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:06,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-28 23:55:06,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 23:55:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:06,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:55:06,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:07,035 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 47 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-10-28 23:55:07,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:07,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299703966] [2021-10-28 23:55:07,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:07,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783208450] [2021-10-28 23:55:07,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783208450] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:07,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:07,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:55:07,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910463198] [2021-10-28 23:55:07,037 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:07,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:07,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:55:07,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:55:07,038 INFO L87 Difference]: Start difference. First operand 27 states and 41 transitions. cyclomatic complexity: 16 Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-10-28 23:55:07,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:07,206 INFO L93 Difference]: Finished difference Result 45 states and 72 transitions. [2021-10-28 23:55:07,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:55:07,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 72 transitions. [2021-10-28 23:55:07,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2021-10-28 23:55:07,211 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 72 transitions. [2021-10-28 23:55:07,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2021-10-28 23:55:07,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2021-10-28 23:55:07,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 72 transitions. [2021-10-28 23:55:07,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:07,213 INFO L681 BuchiCegarLoop]: Abstraction has 45 states and 72 transitions. [2021-10-28 23:55:07,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 72 transitions. [2021-10-28 23:55:07,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 32. [2021-10-28 23:55:07,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 9 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-28 23:55:07,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2021-10-28 23:55:07,219 INFO L704 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-28 23:55:07,219 INFO L587 BuchiCegarLoop]: Abstraction has 32 states and 53 transitions. [2021-10-28 23:55:07,219 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 23:55:07,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 53 transitions. [2021-10-28 23:55:07,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2021-10-28 23:55:07,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:07,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:07,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:07,222 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,222 INFO L791 eck$LassoCheckResult]: Stem: 567#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 568#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 577#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 578#L41-3 [2021-10-28 23:55:07,222 INFO L793 eck$LassoCheckResult]: Loop: 578#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 572#L42-3 assume !!(main_~k~0 <= main_~x~0); 570#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 563#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#67#return; 555#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#69#return; 557#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 552#factENTRY ~n := #in~n; 569#L25 assume !(~n <= 0); 554#L26 call #t~ret0 := fact(~n - 1);< 552#factENTRY ~n := #in~n; 569#L25 assume ~n <= 0;#res := 1; 566#factFINAL assume true; 553#factEXIT >#65#return; 564#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 571#factFINAL assume true; 581#factEXIT >#71#return; 565#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 579#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 575#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 576#L42-3 assume !(main_~k~0 <= main_~x~0); 580#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 578#L41-3 [2021-10-28 23:55:07,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:07,223 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 4 times [2021-10-28 23:55:07,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:07,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652677024] [2021-10-28 23:55:07,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,224 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:07,227 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:07,231 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:07,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1540584337, now seen corresponding path program 2 times [2021-10-28 23:55:07,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:07,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370911059] [2021-10-28 23:55:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:07,240 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:07,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [184021029] [2021-10-28 23:55:07,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:55:07,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:07,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:07,242 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:07,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-28 23:55:07,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:55:07,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:55:07,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 23:55:07,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-10-28 23:55:07,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:07,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370911059] [2021-10-28 23:55:07,540 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:07,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184021029] [2021-10-28 23:55:07,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184021029] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:07,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:07,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-28 23:55:07,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365987626] [2021-10-28 23:55:07,546 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:07,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:07,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 23:55:07,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-28 23:55:07,548 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. cyclomatic complexity: 23 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-10-28 23:55:07,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:07,919 INFO L93 Difference]: Finished difference Result 58 states and 97 transitions. [2021-10-28 23:55:07,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:55:07,920 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 97 transitions. [2021-10-28 23:55:07,925 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 50 [2021-10-28 23:55:07,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 58 states and 97 transitions. [2021-10-28 23:55:07,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 58 [2021-10-28 23:55:07,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58 [2021-10-28 23:55:07,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 97 transitions. [2021-10-28 23:55:07,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:07,940 INFO L681 BuchiCegarLoop]: Abstraction has 58 states and 97 transitions. [2021-10-28 23:55:07,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states and 97 transitions. [2021-10-28 23:55:07,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 38. [2021-10-28 23:55:07,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (22), 12 states have call predecessors, (22), 13 states have call successors, (22) [2021-10-28 23:55:07,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 62 transitions. [2021-10-28 23:55:07,955 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-28 23:55:07,955 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 62 transitions. [2021-10-28 23:55:07,955 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 23:55:07,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 62 transitions. [2021-10-28 23:55:07,956 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-28 23:55:07,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:07,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:07,958 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:07,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:07,959 INFO L791 eck$LassoCheckResult]: Stem: 779#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 780#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 789#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 790#L41-3 [2021-10-28 23:55:07,959 INFO L793 eck$LassoCheckResult]: Loop: 790#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 792#L42-3 assume !!(main_~k~0 <= main_~x~0); 797#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 760#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#73#return; 772#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#75#return; 771#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 761#factENTRY ~n := #in~n; 783#L25 assume !(~n <= 0); 767#L26 call #t~ret0 := fact(~n - 1);< 761#factENTRY ~n := #in~n; 783#L25 assume ~n <= 0;#res := 1; 781#factFINAL assume true; 782#factEXIT >#65#return; 775#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 785#factFINAL assume true; 762#factEXIT >#77#return; 777#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 787#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 791#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 795#L42-3 assume !(main_~k~0 <= main_~x~0); 794#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 790#L41-3 [2021-10-28 23:55:07,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 5 times [2021-10-28 23:55:07,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:07,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194761708] [2021-10-28 23:55:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:07,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:07,968 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:07,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:07,969 INFO L85 PathProgramCache]: Analyzing trace with hash 646106509, now seen corresponding path program 1 times [2021-10-28 23:55:07,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:07,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189563346] [2021-10-28 23:55:07,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:07,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:07,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166599959] [2021-10-28 23:55:07,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:07,977 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:07,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:07,979 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:07,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-28 23:55:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:55:08,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:08,218 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-28 23:55:08,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:08,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189563346] [2021-10-28 23:55:08,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:08,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166599959] [2021-10-28 23:55:08,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166599959] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:08,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:08,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:55:08,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653140628] [2021-10-28 23:55:08,222 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:08,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:08,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:55:08,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:55:08,223 INFO L87 Difference]: Start difference. First operand 38 states and 62 transitions. cyclomatic complexity: 26 Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2021-10-28 23:55:08,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:08,404 INFO L93 Difference]: Finished difference Result 52 states and 81 transitions. [2021-10-28 23:55:08,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 23:55:08,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 81 transitions. [2021-10-28 23:55:08,406 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2021-10-28 23:55:08,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 52 states and 81 transitions. [2021-10-28 23:55:08,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2021-10-28 23:55:08,408 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2021-10-28 23:55:08,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 81 transitions. [2021-10-28 23:55:08,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:08,409 INFO L681 BuchiCegarLoop]: Abstraction has 52 states and 81 transitions. [2021-10-28 23:55:08,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 81 transitions. [2021-10-28 23:55:08,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 38. [2021-10-28 23:55:08,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.173913043478261) internal successors, (27), 24 states have internal predecessors, (27), 13 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (21), 12 states have call predecessors, (21), 13 states have call successors, (21) [2021-10-28 23:55:08,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2021-10-28 23:55:08,415 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 23:55:08,415 INFO L587 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2021-10-28 23:55:08,415 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 23:55:08,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2021-10-28 23:55:08,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2021-10-28 23:55:08,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:08,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:08,417 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:08,417 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:08,418 INFO L791 eck$LassoCheckResult]: Stem: 985#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 986#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 995#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 996#L41-3 [2021-10-28 23:55:08,418 INFO L793 eck$LassoCheckResult]: Loop: 996#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 998#L42-3 assume !!(main_~k~0 <= main_~x~0); 1003#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 966#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#73#return; 979#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#75#return; 969#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 967#factENTRY ~n := #in~n; 989#L25 assume !(~n <= 0); 978#L26 call #t~ret0 := fact(~n - 1);< 967#factENTRY ~n := #in~n; 989#L25 assume ~n <= 0;#res := 1; 987#factFINAL assume true; 988#factEXIT >#65#return; 984#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 991#factFINAL assume true; 968#factEXIT >#77#return; 981#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 993#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 997#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1001#L42-3 assume !(main_~k~0 <= main_~x~0); 1000#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 996#L41-3 [2021-10-28 23:55:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 6 times [2021-10-28 23:55:08,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:08,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222820199] [2021-10-28 23:55:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,423 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:08,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 440366743, now seen corresponding path program 2 times [2021-10-28 23:55:08,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:08,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51450221] [2021-10-28 23:55:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,436 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:08,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [579424789] [2021-10-28 23:55:08,437 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:55:08,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:08,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:08,439 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:08,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-28 23:55:08,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:55:08,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 23:55:08,529 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:08,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:08,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:08,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1834453461, now seen corresponding path program 1 times [2021-10-28 23:55:08,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:08,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211535369] [2021-10-28 23:55:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-10-28 23:55:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-10-28 23:55:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-10-28 23:55:08,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:08,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211535369] [2021-10-28 23:55:08,622 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2021-10-28 23:55:08,622 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190065596] [2021-10-28 23:55:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:08,622 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:08,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:08,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:08,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-28 23:55:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:08,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-28 23:55:08,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-28 23:55:08,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190065596] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:08,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:08,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 23:55:08,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017424499] [2021-10-28 23:55:09,208 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:09,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:09,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:09,208 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:09,208 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:55:09,208 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,208 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:09,208 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:09,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-28 23:55:09,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:09,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:09,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,434 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:09,434 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:55:09,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,439 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,451 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:09,451 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 23:55:09,459 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:09,459 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post8=0} Honda state: {ULTIMATE.start_main_#t~post8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:09,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,482 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,486 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:09,486 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 23:55:09,507 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:09,507 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:09,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,529 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 23:55:09,533 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:09,533 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,541 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:09,541 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:09,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,560 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,561 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 23:55:09,570 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:09,570 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:09,578 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret10=0} Honda state: {ULTIMATE.start_main_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:09,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,597 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 23:55:09,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:09,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,660 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:09,661 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:09,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:55:09,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:09,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 23:55:09,722 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:55:09,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:09,751 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:09,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:09,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:09,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:09,751 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:55:09,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:09,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:09,751 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:09,751 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration6_Loop [2021-10-28 23:55:09,751 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:09,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:09,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:09,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:10,113 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:10,113 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:55:10,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,115 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 23:55:10,131 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,132 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,132 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,133 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,153 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 23:55:10,154 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 [2021-10-28 23:55:10,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,161 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,162 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,163 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,183 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 23:55:10,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,191 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,191 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,191 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,191 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,192 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,192 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,198 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,220 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,221 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 23:55:10,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,230 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,230 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,230 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,230 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,231 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,232 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,257 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 23:55:10,258 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,266 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,266 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,266 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,266 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,266 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,271 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,271 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,275 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,294 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,294 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 23:55:10,296 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,303 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,323 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,342 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 23:55:10,344 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,351 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,351 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:10,352 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:10,352 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,366 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,389 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 23:55:10,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,390 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 23:55:10,392 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,399 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,400 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,401 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,420 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,421 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 23:55:10,424 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,431 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,431 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,432 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,433 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,452 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,453 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 23:55:10,454 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,461 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,462 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,462 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,462 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,462 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,463 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,481 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2021-10-28 23:55:10,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,500 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 23:55:10,501 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,509 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,510 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,510 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,512 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,530 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,531 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 23:55:10,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,541 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,541 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,548 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,548 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,574 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,610 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,615 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,626 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,626 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 23:55:10,636 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 23:55:10,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,657 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 23:55:10,658 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,665 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,665 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,665 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:10,666 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:10,666 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,677 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,708 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-28 23:55:10,709 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,709 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,715 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,724 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,724 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 23:55:10,725 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,725 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,738 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,760 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,760 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 23:55:10,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,769 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,769 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,769 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,769 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,769 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,770 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,770 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,790 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 23:55:10,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,806 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,807 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,807 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,829 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,830 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 23:55:10,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,839 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,839 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,839 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,839 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,839 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,840 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,840 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,841 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,860 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 23:55:10,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,870 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,880 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,880 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:10,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:10,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:10,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:10,939 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:10,940 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:10,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:10,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:10,950 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:10,950 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:10,950 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:10,951 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:10,951 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:10,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 23:55:10,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,002 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,007 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 23:55:11,015 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,023 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:11,023 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:11,023 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,034 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-28 23:55:11,052 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-28 23:55:11,053 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,053 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,055 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 [2021-10-28 23:55:11,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 23:55:11,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,063 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,063 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,064 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,093 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 23:55:11,094 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,101 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,101 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,101 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,102 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,172 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,173 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,179 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,188 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,188 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,188 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,189 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,190 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 23:55:11,206 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,243 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,247 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,248 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,258 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 23:55:11,259 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,279 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 23:55:11,280 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,290 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,297 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,297 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,350 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,358 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 [2021-10-28 23:55:11,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,367 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,368 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,369 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-28 23:55:11,378 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,399 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,399 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,404 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 [2021-10-28 23:55:11,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-28 23:55:11,411 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:11,411 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,412 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,412 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,412 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:11,412 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:11,413 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,414 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-10-28 23:55:11,432 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-28 23:55:11,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,433 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-28 23:55:11,434 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,441 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,442 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,442 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,443 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,443 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,446 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,464 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,465 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-28 23:55:11,466 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,473 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,473 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,473 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,474 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-10-28 23:55:11,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,507 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-28 23:55:11,509 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,515 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,516 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,516 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,516 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,516 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,517 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,517 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,526 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,545 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2021-10-28 23:55:11,545 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,546 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-28 23:55:11,547 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,554 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,554 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,554 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,554 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,555 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-28 23:55:11,575 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,575 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-28 23:55:11,577 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,597 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,597 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,597 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,597 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,606 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,616 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,674 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,675 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,687 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,687 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,687 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,690 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,690 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-28 23:55:11,702 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,734 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,737 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,748 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,748 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:11,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,749 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 23:55:11,749 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 23:55:11,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-28 23:55:11,770 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,801 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,801 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-28 23:55:11,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,802 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,804 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,813 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,814 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:11,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,814 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:11,816 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:11,816 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-28 23:55:11,870 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,902 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,904 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,913 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,913 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:11,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,914 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:11,915 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:11,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-28 23:55:11,930 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:11,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:11,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:11,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:11,963 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:11,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:11,974 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:11,974 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:11,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:11,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:11,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:11,974 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:11,976 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:11,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:11,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-28 23:55:11,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,024 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-10-28 23:55:12,026 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,036 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,036 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:12,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,036 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,037 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,099 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,101 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 [2021-10-28 23:55:12,111 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,111 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:12,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,112 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,112 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,121 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,121 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-10-28 23:55:12,148 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,183 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,196 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,196 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:12,196 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,197 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,198 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-10-28 23:55:12,214 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,247 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,247 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,259 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,259 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-28 23:55:12,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,260 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,261 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,261 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-10-28 23:55:12,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,299 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-28 23:55:12,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,300 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-10-28 23:55:12,302 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,309 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,309 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,309 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,309 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,309 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,310 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,311 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,318 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,337 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-10-28 23:55:12,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,346 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,346 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,346 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,346 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,346 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,346 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,348 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,348 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,374 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-10-28 23:55:12,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,399 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-10-28 23:55:12,400 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,408 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,408 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,408 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,408 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,409 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,421 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,454 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,459 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 [2021-10-28 23:55:12,468 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,469 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-10-28 23:55:12,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,469 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,471 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,471 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,498 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,530 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,535 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,546 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,546 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,546 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,546 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,546 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,557 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-10-28 23:55:12,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,628 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,630 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,639 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,640 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,640 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,642 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-10-28 23:55:12,658 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2021-10-28 23:55:12,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,686 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-10-28 23:55:12,688 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,695 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,695 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:12,695 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,695 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-28 23:55:12,703 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-28 23:55:12,704 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,722 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,755 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-28 23:55:12,755 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,756 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,758 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 [2021-10-28 23:55:12,767 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,768 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:12,768 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,768 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,768 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,769 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-10-28 23:55:12,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,815 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,816 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,817 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,826 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,826 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:12,826 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,827 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,827 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,827 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,828 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,828 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-10-28 23:55:12,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,853 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,853 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-10-28 23:55:12,861 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,861 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:12,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,862 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,862 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,863 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:12,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,910 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-10-28 23:55:12,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,919 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,919 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:12,919 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,919 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,920 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,920 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:12,931 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:12,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2021-10-28 23:55:12,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:12,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:12,965 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:12,971 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:12,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-10-28 23:55:12,980 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:12,980 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:12,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:12,981 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:12,981 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:12,981 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:12,987 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:12,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,001 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2021-10-28 23:55:13,020 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,021 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-10-28 23:55:13,022 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,029 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,029 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:13,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,029 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:13,030 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:13,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,050 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-10-28 23:55:13,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,058 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,059 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-28 23:55:13,059 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,059 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-28 23:55:13,059 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-28 23:55:13,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,061 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,079 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-28 23:55:13,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,080 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-10-28 23:55:13,081 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 [2021-10-28 23:55:13,088 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,089 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,089 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2021-10-28 23:55:13,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,123 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,124 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2021-10-28 23:55:13,131 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,131 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,132 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,133 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,133 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,136 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,155 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,155 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-10-28 23:55:13,156 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 [2021-10-28 23:55:13,164 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,164 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,164 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,164 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,165 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,170 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Ended with exit code 0 [2021-10-28 23:55:13,188 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,189 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-10-28 23:55:13,190 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,197 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,197 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,198 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,198 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,199 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2021-10-28 23:55:13,229 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,231 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-10-28 23:55:13,232 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 [2021-10-28 23:55:13,240 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,240 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,241 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,257 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,282 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,315 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,316 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,327 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,327 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,327 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,327 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-10-28 23:55:13,344 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:13,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,383 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,384 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 23:55:13,394 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-28 23:55:13,394 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-28 23:55:13,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:13,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:13,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:13,394 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-28 23:55:13,395 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 23:55:13,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:13,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-10-28 23:55:13,409 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 23:55:13,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:13,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:13,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 23:55:13,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:55:13,440 INFO L87 Difference]: Start difference. First operand 38 states and 61 transitions. cyclomatic complexity: 25 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-10-28 23:55:13,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:13,483 INFO L93 Difference]: Finished difference Result 40 states and 62 transitions. [2021-10-28 23:55:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 23:55:13,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 62 transitions. [2021-10-28 23:55:13,485 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 32 [2021-10-28 23:55:13,486 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 40 states and 62 transitions. [2021-10-28 23:55:13,486 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 40 [2021-10-28 23:55:13,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-28 23:55:13,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 62 transitions. [2021-10-28 23:55:13,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:55:13,487 INFO L681 BuchiCegarLoop]: Abstraction has 40 states and 62 transitions. [2021-10-28 23:55:13,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 62 transitions. [2021-10-28 23:55:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 36. [2021-10-28 23:55:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 11 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (19), 11 states have call predecessors, (19), 11 states have call successors, (19) [2021-10-28 23:55:13,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2021-10-28 23:55:13,492 INFO L704 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-28 23:55:13,492 INFO L587 BuchiCegarLoop]: Abstraction has 36 states and 56 transitions. [2021-10-28 23:55:13,492 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-10-28 23:55:13,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 56 transitions. [2021-10-28 23:55:13,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2021-10-28 23:55:13,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:13,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:13,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 23:55:13,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:13,493 INFO L791 eck$LassoCheckResult]: Stem: 1181#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1182#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1193#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1194#L41-3 [2021-10-28 23:55:13,493 INFO L793 eck$LassoCheckResult]: Loop: 1194#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1187#L42-3 assume !!(main_~k~0 <= main_~x~0); 1185#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1175#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#67#return; 1169#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#69#return; 1167#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1166#factENTRY ~n := #in~n; 1184#L25 assume ~n <= 0;#res := 1; 1183#factFINAL assume true; 1168#factEXIT >#71#return; 1178#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1195#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1192#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1198#L42-3 assume !(main_~k~0 <= main_~x~0); 1196#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1194#L41-3 [2021-10-28 23:55:13,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash 38893, now seen corresponding path program 7 times [2021-10-28 23:55:13,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:13,494 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45445363] [2021-10-28 23:55:13,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:13,494 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,504 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,507 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:13,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:13,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1214025381, now seen corresponding path program 1 times [2021-10-28 23:55:13,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:13,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720224873] [2021-10-28 23:55:13,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:13,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:13,519 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:13,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1228909024] [2021-10-28 23:55:13,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:13,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:13,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,522 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-10-28 23:55:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,618 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:13,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,635 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:13,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:13,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2062430919, now seen corresponding path program 1 times [2021-10-28 23:55:13,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:13,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639477285] [2021-10-28 23:55:13,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:13,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:13,645 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:13,653 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1985109566] [2021-10-28 23:55:13,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:13,654 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:13,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:13,655 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:13,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-10-28 23:55:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,753 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:13,774 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:14,086 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:14,086 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:14,086 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:14,086 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:14,086 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:55:14,086 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,086 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:14,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:14,087 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-28 23:55:14,087 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:14,087 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:14,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:14,215 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:14,215 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:55:14,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,223 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-10-28 23:55:14,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,279 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,280 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-10-28 23:55:14,302 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,334 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-10-28 23:55:14,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#res=1} Honda state: {ULTIMATE.start_binomialCoefficient_#res=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,387 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,388 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,390 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-10-28 23:55:14,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post7=0} Honda state: {ULTIMATE.start_main_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,444 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-10-28 23:55:14,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Honda state: {ULTIMATE.start_binomialCoefficient_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,503 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-10-28 23:55:14,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 23:55:14,526 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret9=0} Honda state: {ULTIMATE.start_main_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 23:55:14,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,559 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,563 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,564 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:55:14,564 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-10-28 23:55:14,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:14,623 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:14,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:14,624 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:14,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:55:14,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:55:14,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-10-28 23:55:15,843 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:55:15,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:15,847 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:55:15,847 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:55:15,847 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:55:15,847 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:55:15,847 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:55:15,847 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:15,847 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:55:15,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:55:15,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: Binomial.c_Iteration7_Loop [2021-10-28 23:55:15,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:55:15,848 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:55:15,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,875 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:55:15,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:55:15,971 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:55:15,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:15,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:15,972 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:15,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-10-28 23:55:15,979 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 [2021-10-28 23:55:15,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:55:15,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:55:15,987 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:55:15,987 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:55:15,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:55:15,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:55:15,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:55:15,994 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:55:15,997 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:55:15,997 INFO L444 ModelExtractionUtils]: 6 out of 9 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 23:55:15,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:55:15,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:15,998 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:55:15,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-10-28 23:55:15,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:55:15,999 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:55:15,999 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:55:15,999 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0) = -2*ULTIMATE.start_main_~n~0 + 1 Supporting invariants [] [2021-10-28 23:55:16,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:16,018 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:55:16,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:16,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:55:16,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:16,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-28 23:55:16,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:16,261 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 23:55:16,261 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2021-10-28 23:55:16,262 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:55:16,488 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 56 transitions. cyclomatic complexity: 22. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Result 132 states and 203 transitions. Complement of second has 26 states. [2021-10-28 23:55:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2021-10-28 23:55:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 8 states have internal predecessors, (17), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 23:55:16,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 70 transitions. [2021-10-28 23:55:16,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 23 letters. [2021-10-28 23:55:16,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:16,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 26 letters. Loop has 23 letters. [2021-10-28 23:55:16,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:16,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 70 transitions. Stem has 3 letters. Loop has 46 letters. [2021-10-28 23:55:16,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:55:16,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132 states and 203 transitions. [2021-10-28 23:55:16,496 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-28 23:55:16,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132 states to 131 states and 202 transitions. [2021-10-28 23:55:16,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2021-10-28 23:55:16,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2021-10-28 23:55:16,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 202 transitions. [2021-10-28 23:55:16,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:16,500 INFO L681 BuchiCegarLoop]: Abstraction has 131 states and 202 transitions. [2021-10-28 23:55:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 202 transitions. [2021-10-28 23:55:16,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 126. [2021-10-28 23:55:16,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 78 states have (on average 1.1923076923076923) internal successors, (93), 81 states have internal predecessors, (93), 38 states have call successors, (38), 6 states have call predecessors, (38), 10 states have return successors, (62), 38 states have call predecessors, (62), 38 states have call successors, (62) [2021-10-28 23:55:16,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 193 transitions. [2021-10-28 23:55:16,514 INFO L704 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-28 23:55:16,514 INFO L587 BuchiCegarLoop]: Abstraction has 126 states and 193 transitions. [2021-10-28 23:55:16,514 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-10-28 23:55:16,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 193 transitions. [2021-10-28 23:55:16,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 40 [2021-10-28 23:55:16,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:16,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:16,517 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:55:16,517 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2021-10-28 23:55:16,518 INFO L791 eck$LassoCheckResult]: Stem: 1485#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 1486#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 1512#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 1513#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-28 23:55:16,518 INFO L793 eck$LassoCheckResult]: Loop: 1497#L42-3 assume !!(main_~k~0 <= main_~x~0); 1495#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1487#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1543#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume ~n <= 0;#res := 1; 1550#factFINAL assume true; 1548#factEXIT >#69#return; 1482#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1546#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1555#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1554#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1553#L42-3 assume !!(main_~k~0 <= main_~x~0); 1529#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1544#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#67#return; 1545#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#69#return; 1542#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 1465#factENTRY ~n := #in~n; 1556#L25 assume !(~n <= 0); 1470#L26 call #t~ret0 := fact(~n - 1);< 1491#factENTRY ~n := #in~n; 1492#L25 assume ~n <= 0;#res := 1; 1489#factFINAL assume true; 1468#factEXIT >#65#return; 1472#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 1557#factFINAL assume true; 1541#factEXIT >#71#return; 1533#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 1531#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 1530#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 1528#L42-3 assume !(main_~k~0 <= main_~x~0); 1526#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 1517#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 1497#L42-3 [2021-10-28 23:55:16,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:16,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times [2021-10-28 23:55:16,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:16,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402800655] [2021-10-28 23:55:16,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:16,519 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:16,524 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:16,527 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:16,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:16,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1979006875, now seen corresponding path program 3 times [2021-10-28 23:55:16,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:16,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308843927] [2021-10-28 23:55:16,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:16,528 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:16,534 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:16,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1221901295] [2021-10-28 23:55:16,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:55:16,535 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:16,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:16,535 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:16,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-10-28 23:55:16,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-28 23:55:16,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:55:16,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-28 23:55:16,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:16,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:16,895 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2021-10-28 23:55:16,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:16,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308843927] [2021-10-28 23:55:16,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:16,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221901295] [2021-10-28 23:55:16,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221901295] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:55:16,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:55:16,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:55:16,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267498064] [2021-10-28 23:55:16,897 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:16,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:16,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:55:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:55:16,898 INFO L87 Difference]: Start difference. First operand 126 states and 193 transitions. cyclomatic complexity: 72 Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-10-28 23:55:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:16,970 INFO L93 Difference]: Finished difference Result 168 states and 259 transitions. [2021-10-28 23:55:16,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:55:16,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 168 states and 259 transitions. [2021-10-28 23:55:16,974 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 58 [2021-10-28 23:55:16,979 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 168 states to 162 states and 253 transitions. [2021-10-28 23:55:16,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-10-28 23:55:16,980 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-10-28 23:55:16,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 162 states and 253 transitions. [2021-10-28 23:55:16,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:16,980 INFO L681 BuchiCegarLoop]: Abstraction has 162 states and 253 transitions. [2021-10-28 23:55:16,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states and 253 transitions. [2021-10-28 23:55:17,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 122. [2021-10-28 23:55:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 81 states have internal predecessors, (91), 36 states have call successors, (36), 6 states have call predecessors, (36), 10 states have return successors, (58), 34 states have call predecessors, (58), 36 states have call successors, (58) [2021-10-28 23:55:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 185 transitions. [2021-10-28 23:55:17,014 INFO L704 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-28 23:55:17,014 INFO L587 BuchiCegarLoop]: Abstraction has 122 states and 185 transitions. [2021-10-28 23:55:17,014 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-10-28 23:55:17,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 122 states and 185 transitions. [2021-10-28 23:55:17,015 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 37 [2021-10-28 23:55:17,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:17,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:17,020 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:55:17,021 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [11, 11, 6, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:17,021 INFO L791 eck$LassoCheckResult]: Stem: 2013#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2014#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2044#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2045#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-28 23:55:17,022 INFO L793 eck$LassoCheckResult]: Loop: 2049#L42-3 assume !!(main_~k~0 <= main_~x~0); 2078#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1999#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#67#return; 1997#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume ~n <= 0;#res := 1; 2076#factFINAL assume true; 1991#factEXIT >#69#return; 1996#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#71#return; 2002#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2108#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2042#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2027#L42-3 assume !!(main_~k~0 <= main_~x~0); 2028#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 1994#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#73#return; 1995#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#75#return; 1992#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2035#factENTRY ~n := #in~n; 2075#L25 assume !(~n <= 0); 2070#L26 call #t~ret0 := fact(~n - 1);< 2040#factENTRY ~n := #in~n; 2077#L25 assume ~n <= 0;#res := 1; 2074#factFINAL assume true; 2069#factEXIT >#65#return; 2068#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2067#factFINAL assume true; 2066#factEXIT >#77#return; 2065#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2063#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2060#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2059#L42-3 assume !(main_~k~0 <= main_~x~0); 2056#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2048#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2049#L42-3 [2021-10-28 23:55:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:17,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 2 times [2021-10-28 23:55:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:17,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321900703] [2021-10-28 23:55:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:17,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:17,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:17,031 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:17,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:17,043 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1284734623, now seen corresponding path program 1 times [2021-10-28 23:55:17,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:17,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646320379] [2021-10-28 23:55:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:17,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:17,051 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:17,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1723052940] [2021-10-28 23:55:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:17,056 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:17,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:17,059 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:17,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-10-28 23:55:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:17,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-28 23:55:17,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 142 proven. 18 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-10-28 23:55:17,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:17,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646320379] [2021-10-28 23:55:17,526 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:17,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723052940] [2021-10-28 23:55:17,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723052940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:17,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:17,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-10-28 23:55:17,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184808721] [2021-10-28 23:55:17,527 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:17,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:17,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 23:55:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-10-28 23:55:17,528 INFO L87 Difference]: Start difference. First operand 122 states and 185 transitions. cyclomatic complexity: 68 Second operand has 10 states, 8 states have (on average 3.75) internal successors, (30), 9 states have internal predecessors, (30), 6 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2021-10-28 23:55:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:17,841 INFO L93 Difference]: Finished difference Result 185 states and 292 transitions. [2021-10-28 23:55:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-28 23:55:17,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 185 states and 292 transitions. [2021-10-28 23:55:17,847 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 67 [2021-10-28 23:55:17,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 185 states to 185 states and 292 transitions. [2021-10-28 23:55:17,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2021-10-28 23:55:17,854 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2021-10-28 23:55:17,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 185 states and 292 transitions. [2021-10-28 23:55:17,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:17,855 INFO L681 BuchiCegarLoop]: Abstraction has 185 states and 292 transitions. [2021-10-28 23:55:17,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states and 292 transitions. [2021-10-28 23:55:17,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 152. [2021-10-28 23:55:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 96 states have (on average 1.15625) internal successors, (111), 101 states have internal predecessors, (111), 46 states have call successors, (46), 6 states have call predecessors, (46), 10 states have return successors, (78), 44 states have call predecessors, (78), 46 states have call successors, (78) [2021-10-28 23:55:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 235 transitions. [2021-10-28 23:55:17,872 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-28 23:55:17,872 INFO L587 BuchiCegarLoop]: Abstraction has 152 states and 235 transitions. [2021-10-28 23:55:17,872 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-10-28 23:55:17,872 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 152 states and 235 transitions. [2021-10-28 23:55:17,874 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 52 [2021-10-28 23:55:17,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:17,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:17,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:55:17,878 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:17,878 INFO L791 eck$LassoCheckResult]: Stem: 2555#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 2556#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 2585#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 2586#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-28 23:55:17,880 INFO L793 eck$LassoCheckResult]: Loop: 2592#L42-3 assume !!(main_~k~0 <= main_~x~0); 2639#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2624#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2571#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume ~n <= 0;#res := 1; 2638#factFINAL assume true; 2622#factEXIT >#69#return; 2625#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2627#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2680#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2583#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2569#L42-3 assume !!(main_~k~0 <= main_~x~0); 2565#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2566#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#67#return; 2623#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#69#return; 2553#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#71#return; 2626#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2686#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 2636#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2634#L42-3 assume !!(main_~k~0 <= main_~x~0); 2605#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 2535#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#73#return; 2573#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#75#return; 2595#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 2536#factENTRY ~n := #in~n; 2637#L25 assume !(~n <= 0); 2542#L26 call #t~ret0 := fact(~n - 1);< 2561#factENTRY ~n := #in~n; 2562#L25 assume ~n <= 0;#res := 1; 2559#factFINAL assume true; 2539#factEXIT >#65#return; 2544#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 2635#factFINAL assume true; 2633#factEXIT >#77#return; 2575#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 2576#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 2606#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 2604#L42-3 assume !(main_~k~0 <= main_~x~0); 2601#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 2591#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 2592#L42-3 [2021-10-28 23:55:17,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:17,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 3 times [2021-10-28 23:55:17,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:17,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095578520] [2021-10-28 23:55:17,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:17,882 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:17,888 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:17,904 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1420952905, now seen corresponding path program 2 times [2021-10-28 23:55:17,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:17,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088104256] [2021-10-28 23:55:17,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:17,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:17,916 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:17,916 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1152131885] [2021-10-28 23:55:17,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 23:55:17,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:17,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:17,922 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:17,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-10-28 23:55:18,109 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 23:55:18,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:55:18,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-28 23:55:18,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:18,536 INFO L134 CoverageAnalysis]: Checked inductivity of 617 backedges. 355 proven. 48 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2021-10-28 23:55:18,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:18,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088104256] [2021-10-28 23:55:18,537 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:18,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152131885] [2021-10-28 23:55:18,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152131885] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:18,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:18,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-28 23:55:18,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013750439] [2021-10-28 23:55:18,538 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:18,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:18,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-28 23:55:18,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2021-10-28 23:55:18,544 INFO L87 Difference]: Start difference. First operand 152 states and 235 transitions. cyclomatic complexity: 88 Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 11 states have internal predecessors, (37), 6 states have call successors, (13), 2 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2021-10-28 23:55:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:18,911 INFO L93 Difference]: Finished difference Result 285 states and 466 transitions. [2021-10-28 23:55:18,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-28 23:55:18,914 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 466 transitions. [2021-10-28 23:55:18,920 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 96 [2021-10-28 23:55:18,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 466 transitions. [2021-10-28 23:55:18,930 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2021-10-28 23:55:18,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2021-10-28 23:55:18,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 466 transitions. [2021-10-28 23:55:18,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:18,932 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 466 transitions. [2021-10-28 23:55:18,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 466 transitions. [2021-10-28 23:55:18,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 238. [2021-10-28 23:55:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 154 states have (on average 1.1233766233766234) internal successors, (173), 157 states have internal predecessors, (173), 68 states have call successors, (68), 10 states have call predecessors, (68), 16 states have return successors, (170), 70 states have call predecessors, (170), 68 states have call successors, (170) [2021-10-28 23:55:18,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 411 transitions. [2021-10-28 23:55:18,957 INFO L704 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-28 23:55:18,957 INFO L587 BuchiCegarLoop]: Abstraction has 238 states and 411 transitions. [2021-10-28 23:55:18,957 INFO L425 BuchiCegarLoop]: ======== Iteration 11============ [2021-10-28 23:55:18,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 238 states and 411 transitions. [2021-10-28 23:55:18,960 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 83 [2021-10-28 23:55:18,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:18,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:18,967 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:55:18,967 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [18, 18, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:18,967 INFO L791 eck$LassoCheckResult]: Stem: 3373#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 3374#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 3410#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 3411#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3413#L42-3 [2021-10-28 23:55:18,968 INFO L793 eck$LassoCheckResult]: Loop: 3413#L42-3 assume !!(main_~k~0 <= main_~x~0); 3493#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3371#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3478#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3477#factFINAL assume true; 3435#factEXIT >#67#return; 3393#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume ~n <= 0;#res := 1; 3450#factFINAL assume true; 3448#factEXIT >#69#return; 3443#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3484#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3453#factFINAL assume true; 3454#factEXIT >#71#return; 3476#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3506#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3504#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3501#L42-3 assume !!(main_~k~0 <= main_~x~0); 3500#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3442#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3478#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3477#factFINAL assume true; 3435#factEXIT >#67#return; 3441#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3478#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3477#factFINAL assume true; 3435#factEXIT >#69#return; 3438#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume !(~n <= 0); 3337#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3341#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3484#factFINAL assume true; 3336#factEXIT >#65#return; 3342#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3453#factFINAL assume true; 3454#factEXIT >#71#return; 3475#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3474#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 3473#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3472#L42-3 assume !!(main_~k~0 <= main_~x~0); 3471#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 3332#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3478#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3477#factFINAL assume true; 3435#factEXIT >#73#return; 3395#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume ~n <= 0;#res := 1; 3450#factFINAL assume true; 3448#factEXIT >#75#return; 3416#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 3333#factENTRY ~n := #in~n; 3452#L25 assume !(~n <= 0); 3339#L26 call #t~ret0 := fact(~n - 1);< 3401#factENTRY ~n := #in~n; 3389#L25 assume ~n <= 0;#res := 1; 3390#factFINAL assume true; 3479#factEXIT >#65#return; 3478#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 3477#factFINAL assume true; 3435#factEXIT >#77#return; 3397#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 3398#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 3429#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 3427#L42-3 assume !(main_~k~0 <= main_~x~0); 3424#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 3412#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 3413#L42-3 [2021-10-28 23:55:18,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:18,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 4 times [2021-10-28 23:55:18,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:18,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175765535] [2021-10-28 23:55:18,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:18,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:18,976 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:18,981 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:18,981 INFO L85 PathProgramCache]: Analyzing trace with hash 191172013, now seen corresponding path program 3 times [2021-10-28 23:55:18,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:18,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404605080] [2021-10-28 23:55:18,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:18,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:18,998 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:18,998 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066405485] [2021-10-28 23:55:18,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 23:55:18,999 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:18,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:19,000 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:19,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-10-28 23:55:19,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-28 23:55:19,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 23:55:19,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-28 23:55:19,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 125 proven. 63 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-10-28 23:55:19,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:19,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404605080] [2021-10-28 23:55:19,679 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:19,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066405485] [2021-10-28 23:55:19,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066405485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:19,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:19,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-28 23:55:19,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231812021] [2021-10-28 23:55:19,680 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:55:19,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:55:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-28 23:55:19,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2021-10-28 23:55:19,682 INFO L87 Difference]: Start difference. First operand 238 states and 411 transitions. cyclomatic complexity: 179 Second operand has 14 states, 11 states have (on average 2.909090909090909) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 5 states have call predecessors, (12), 7 states have call successors, (12) [2021-10-28 23:55:20,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:55:20,554 INFO L93 Difference]: Finished difference Result 604 states and 1105 transitions. [2021-10-28 23:55:20,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-28 23:55:20,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 604 states and 1105 transitions. [2021-10-28 23:55:20,566 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 229 [2021-10-28 23:55:20,580 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 604 states to 598 states and 1099 transitions. [2021-10-28 23:55:20,580 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 298 [2021-10-28 23:55:20,580 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 298 [2021-10-28 23:55:20,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 598 states and 1099 transitions. [2021-10-28 23:55:20,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 23:55:20,581 INFO L681 BuchiCegarLoop]: Abstraction has 598 states and 1099 transitions. [2021-10-28 23:55:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states and 1099 transitions. [2021-10-28 23:55:20,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 279. [2021-10-28 23:55:20,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 178 states have (on average 1.1292134831460674) internal successors, (201), 179 states have internal predecessors, (201), 85 states have call successors, (85), 10 states have call predecessors, (85), 16 states have return successors, (213), 89 states have call predecessors, (213), 85 states have call successors, (213) [2021-10-28 23:55:20,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 499 transitions. [2021-10-28 23:55:20,609 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-28 23:55:20,609 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 499 transitions. [2021-10-28 23:55:20,609 INFO L425 BuchiCegarLoop]: ======== Iteration 12============ [2021-10-28 23:55:20,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 499 transitions. [2021-10-28 23:55:20,611 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 87 [2021-10-28 23:55:20,612 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:55:20,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:55:20,613 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-28 23:55:20,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [17, 17, 9, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:55:20,613 INFO L791 eck$LassoCheckResult]: Stem: 4619#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~ret9, main_#t~ret10, main_#t~post8, main_~k~0, main_#t~post7, main_~n~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet4;havoc main_#t~nondet4; 4620#L35 assume !(main_~x~0 < 0);main_~y~0 := main_#t~nondet5;havoc main_#t~nondet5; 4652#L38 assume !(main_~y~0 < 0);main_~z~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := 0; 4653#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-28 23:55:20,613 INFO L793 eck$LassoCheckResult]: Loop: 4655#L42-3 assume !!(main_~k~0 <= main_~x~0); 4713#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4670#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#67#return; 4674#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4689#factENTRY ~n := #in~n; 4709#L25 assume ~n <= 0;#res := 1; 4696#factFINAL assume true; 4692#factEXIT >#69#return; 4672#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#71#return; 4694#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4827#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4824#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4823#L42-3 assume !!(main_~k~0 <= main_~x~0); 4822#L43 assume main_~k~0 <= main_~n~0;binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~n~0, main_~k~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4681#L30 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#67#return; 4675#L30-1 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#69#return; 4686#L30-2 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4697#factENTRY ~n := #in~n; 4698#L25 assume ~n <= 0;#res := 1; 4696#factFINAL assume true; 4692#factEXIT >#71#return; 4695#L30-3 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4820#L30-4 main_#t~ret9 := binomialCoefficient_#res;havoc main_#t~ret9; 4798#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4796#L42-3 assume !!(main_~k~0 <= main_~x~0); 4665#L43 assume !(main_~k~0 <= main_~n~0);binomialCoefficient_#in~n, binomialCoefficient_#in~k := main_~k~0, main_~n~0;havoc binomialCoefficient_#res;havoc binomialCoefficient_#t~ret1, binomialCoefficient_#t~ret2, binomialCoefficient_#t~ret3, binomialCoefficient_~n, binomialCoefficient_~k;binomialCoefficient_~n := binomialCoefficient_#in~n;binomialCoefficient_~k := binomialCoefficient_#in~k; 4673#L30-5 call binomialCoefficient_#t~ret1 := fact(binomialCoefficient_~n);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume !(~n <= 0); 4704#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4705#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4712#factFINAL assume true; 4707#factEXIT >#65#return; 4701#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4699#factFINAL assume true; 4669#factEXIT >#73#return; 4682#L30-6 call binomialCoefficient_#t~ret2 := fact(binomialCoefficient_~k);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#75#return; 4677#L30-7 call binomialCoefficient_#t~ret3 := fact(binomialCoefficient_~n - binomialCoefficient_~k);< 4689#factENTRY ~n := #in~n; 4709#L25 assume !(~n <= 0); 4703#L26 call #t~ret0 := fact(~n - 1);< 4647#factENTRY ~n := #in~n; 4710#L25 assume ~n <= 0;#res := 1; 4708#factFINAL assume true; 4702#factEXIT >#65#return; 4700#L26-1 #res := ~n * #t~ret0;havoc #t~ret0; 4690#factFINAL assume true; 4691#factEXIT >#77#return; 4668#L30-8 binomialCoefficient_#res := (if binomialCoefficient_#t~ret1 < 0 && 0 != binomialCoefficient_#t~ret1 % (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) then (if binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3 < 0 then binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3) - 1 else 1 + binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3)) else binomialCoefficient_#t~ret1 / (binomialCoefficient_#t~ret2 * binomialCoefficient_#t~ret3));havoc binomialCoefficient_#t~ret1;havoc binomialCoefficient_#t~ret2;havoc binomialCoefficient_#t~ret3; 4667#L30-9 main_#t~ret10 := binomialCoefficient_#res;havoc main_#t~ret10; 4666#L42-2 main_#t~post8 := main_~k~0;main_~k~0 := 1 + main_#t~post8;havoc main_#t~post8; 4664#L42-3 assume !(main_~k~0 <= main_~x~0); 4662#L41-2 main_#t~post7 := main_~n~0;main_~n~0 := 1 + main_#t~post7;havoc main_#t~post7; 4654#L41-3 assume !!(main_~n~0 <= main_~x~0);main_~k~0 := 0; 4655#L42-3 [2021-10-28 23:55:20,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:20,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 5 times [2021-10-28 23:55:20,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:20,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788430699] [2021-10-28 23:55:20,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:20,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:20,620 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:20,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:20,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1578538653, now seen corresponding path program 4 times [2021-10-28 23:55:20,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:20,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181084403] [2021-10-28 23:55:20,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:20,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:20,631 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:20,631 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1377944641] [2021-10-28 23:55:20,631 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-28 23:55:20,632 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:20,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:20,635 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:20,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-10-28 23:55:20,916 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-28 23:55:20,916 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2021-10-28 23:55:20,916 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:55:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:55:20,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:55:20,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:55:20,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1613108234, now seen corresponding path program 1 times [2021-10-28 23:55:20,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:55:20,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993602109] [2021-10-28 23:55:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:20,974 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:55:20,982 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 23:55:20,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [330104141] [2021-10-28 23:55:20,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:55:20,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 23:55:20,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:55:20,987 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 23:55:21,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-10-28 23:55:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:55:21,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 23:55:21,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:55:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 143 proven. 1 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2021-10-28 23:55:21,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:55:21,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993602109] [2021-10-28 23:55:21,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-28 23:55:21,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [330104141] [2021-10-28 23:55:21,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [330104141] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 23:55:21,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-28 23:55:21,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-10-28 23:55:21,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7078719] [2021-10-28 23:55:59,160 WARN L207 SmtUtils]: Spent 36.90 s on a formula simplification. DAG size of input: 192 DAG size of output: 1 [2021-10-28 23:55:59,163 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: loopTF is false but loop analysis said: feasible at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:833) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-28 23:55:59,166 INFO L168 Benchmark]: Toolchain (without parser) took 55003.09 ms. Allocated memory was 113.2 MB in the beginning and 220.2 MB in the end (delta: 107.0 MB). Free memory was 82.2 MB in the beginning and 110.2 MB in the end (delta: -28.0 MB). Peak memory consumption was 146.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:59,166 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 50.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:55:59,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.67 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 88.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:59,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.65 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 87.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:59,167 INFO L168 Benchmark]: Boogie Preprocessor took 19.08 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 86.2 MB in the end (delta: 793.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:55:59,168 INFO L168 Benchmark]: RCFGBuilder took 232.82 ms. Allocated memory is still 113.2 MB. Free memory was 85.8 MB in the beginning and 76.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:59,168 INFO L168 Benchmark]: BuchiAutomizer took 54501.76 ms. Allocated memory was 113.2 MB in the beginning and 220.2 MB in the end (delta: 107.0 MB). Free memory was 76.5 MB in the beginning and 110.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 141.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:55:59,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 113.2 MB. Free memory was 66.3 MB in the beginning and 66.3 MB in the end (delta: 50.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.67 ms. Allocated memory is still 113.2 MB. Free memory was 82.2 MB in the beginning and 88.6 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.65 ms. Allocated memory is still 113.2 MB. Free memory was 88.6 MB in the beginning and 87.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.08 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 86.2 MB in the end (delta: 793.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 232.82 ms. Allocated memory is still 113.2 MB. Free memory was 85.8 MB in the beginning and 76.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 54501.76 ms. Allocated memory was 113.2 MB in the beginning and 220.2 MB in the end (delta: 107.0 MB). Free memory was 76.5 MB in the beginning and 110.2 MB in the end (delta: -33.7 MB). Peak memory consumption was 141.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: loopTF is false but loop analysis said: feasible de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: loopTF is false but loop analysis said: feasible: de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.computeLoopTF(LassoCheck.java:343) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-28 23:55:59,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:59,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-10-28 23:55:59,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Ended with exit code 0 [2021-10-28 23:55:59,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-10-28 23:56:00,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Ended with exit code 0 [2021-10-28 23:56:00,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2021-10-28 23:56:00,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:00,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-10-28 23:56:00,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-10-28 23:56:01,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:01,224 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-28 23:56:01,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-28 23:56:01,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-10-28 23:56:01,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-28 23:56:02,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54d13eb0-9c49-485a-9819-6ba5fa17af07/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...