./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be --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 fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:15:38,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:15:38,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:15:38,145 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:15:38,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:15:38,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:15:38,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:15:38,158 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:15:38,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:15:38,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:15:38,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:15:38,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:15:38,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:15:38,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:15:38,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:15:38,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:15:38,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:15:38,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:15:38,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:15:38,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:15:38,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:15:38,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:15:38,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:15:38,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:15:38,219 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:15:38,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:15:38,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:15:38,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:15:38,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:15:38,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:15:38,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:15:38,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:15:38,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:15:38,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:15:38,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:15:38,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:15:38,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:15:38,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:15:38,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:15:38,237 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:15:38,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:15:38,239 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:15:38,296 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:15:38,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:15:38,299 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:15:38,299 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:15:38,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:15:38,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:15:38,302 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:15:38,302 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:15:38,302 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:15:38,303 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:15:38,304 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:15:38,304 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:15:38,305 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:15:38,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:15:38,305 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:15:38,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:15:38,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:15:38,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:15:38,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:15:38,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:15:38,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:15:38,308 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:15:38,308 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:15:38,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:15:38,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:15:38,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:15:38,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:15:38,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:15:38,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:15:38,313 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:15:38,313 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_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcb42c45d403119d826fb85259664d72fd3e2539ab650f03e49f091b9d2438bf [2021-10-21 19:15:38,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:15:38,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:15:38,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:15:38,720 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:15:38,720 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:15:38,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-10-21 19:15:38,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/data/114cf02e2/6aae9bf45d8e477f84b9b1b66dff8717/FLAG114bca907 [2021-10-21 19:15:39,305 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:15:39,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/sv-benchmarks/c/termination-restricted-15/NO_23.c [2021-10-21 19:15:39,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/data/114cf02e2/6aae9bf45d8e477f84b9b1b66dff8717/FLAG114bca907 [2021-10-21 19:15:39,680 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/data/114cf02e2/6aae9bf45d8e477f84b9b1b66dff8717 [2021-10-21 19:15:39,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:15:39,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:15:39,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:39,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:15:39,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:15:39,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:39,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c00ecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39, skipping insertion in model container [2021-10-21 19:15:39,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:39,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:15:39,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:15:39,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:39,956 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:15:39,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:15:39,988 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:15:39,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39 WrapperNode [2021-10-21 19:15:39,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:15:39,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:39,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:15:39,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:15:40,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,032 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:15:40,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:15:40,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:15:40,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:15:40,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:15:40,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:15:40,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:15:40,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:15:40,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (1/1) ... [2021-10-21 19:15:40,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:40,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:40,098 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:40,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:15:40,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:15:40,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:15:40,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:15:40,315 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:15:40,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:40 BoogieIcfgContainer [2021-10-21 19:15:40,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:15:40,319 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:15:40,319 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:15:40,323 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:15:40,324 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:40,324 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:15:39" (1/3) ... [2021-10-21 19:15:40,326 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a6a0c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:15:40, skipping insertion in model container [2021-10-21 19:15:40,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:40,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:15:39" (2/3) ... [2021-10-21 19:15:40,327 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a6a0c2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:15:40, skipping insertion in model container [2021-10-21 19:15:40,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:15:40,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:40" (3/3) ... [2021-10-21 19:15:40,329 INFO L389 chiAutomizerObserver]: Analyzing ICFG NO_23.c [2021-10-21 19:15:40,383 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:15:40,383 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:15:40,383 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:15:40,383 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:15:40,384 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:15:40,384 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:15:40,384 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:15:40,384 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:15:40,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:40,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:40,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:40,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:40,427 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:15:40,427 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:40,427 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:15:40,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:40,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:40,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:40,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:40,430 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:15:40,430 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:40,437 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 4#L10-2true [2021-10-21 19:15:40,438 INFO L793 eck$LassoCheckResult]: Loop: 4#L10-2true assume !!(main_~i~0 < 100); 6#L10true assume main_~i~0 < 50;main_~i~0 := 51; 4#L10-2true [2021-10-21 19:15:40,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:40,444 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 19:15:40,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:40,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559095876] [2021-10-21 19:15:40,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:40,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,552 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:40,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:40,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:40,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-21 19:15:40,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:40,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397672937] [2021-10-21 19:15:40,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:40,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,616 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:40,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,627 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:40,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:40,631 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-21 19:15:40,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:40,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311170660] [2021-10-21 19:15:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:40,633 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,645 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:40,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:40,754 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:40,769 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:40,769 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:40,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:40,770 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:15:40,770 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:40,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:40,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:40,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-10-21 19:15:40,772 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:40,772 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:40,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:40,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:40,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:40,888 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:40,888 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:15:40,891 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:40,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:40,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:40,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:15:40,916 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:40,917 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:40,942 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:15:40,942 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:15:40,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:40,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:40,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:40,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:15:41,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:41,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,019 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:15:41,019 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:15:41,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,052 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:15:41,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:41,059 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,105 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:15:41,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:15:41,119 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,193 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:15:41,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,199 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:41,199 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:41,199 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:41,199 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:41,199 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:41,199 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,199 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:41,199 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:41,200 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration1_Loop [2021-10-21 19:15:41,200 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:41,200 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:41,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,291 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:41,295 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:41,297 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,298 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,306 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 [2021-10-21 19:15:41,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:41,316 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:41,316 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:41,316 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:41,323 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:41,323 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:41,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:15:41,345 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:41,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,377 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,379 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:15:41,393 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 [2021-10-21 19:15:41,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:41,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:41,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:41,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:41,402 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:41,403 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:41,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:41,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:41,433 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:15:41,433 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:15:41,434 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,436 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:15:41,462 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:41,462 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:15:41,462 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:41,462 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-21 19:15:41,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-21 19:15:41,495 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:15:41,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:41,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:41,559 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:41,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:41,575 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:41,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:41,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:41,608 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:15:41,610 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:41,668 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 30 transitions. Complement of second has 6 states. [2021-10-21 19:15:41,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-10-21 19:15:41,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 19:15:41,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:41,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:15:41,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:41,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-21 19:15:41,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:41,676 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2021-10-21 19:15:41,682 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:41,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2021-10-21 19:15:41,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 19:15:41,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-21 19:15:41,687 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2021-10-21 19:15:41,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:41,687 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:15:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2021-10-21 19:15:41,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-21 19:15:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-21 19:15:41,713 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:15:41,713 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-21 19:15:41,713 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:15:41,713 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-21 19:15:41,714 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:41,714 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:41,714 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:41,715 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-21 19:15:41,715 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:41,716 INFO L791 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 69#L10-2 assume !!(main_~i~0 < 100); 67#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 63#L10-2 [2021-10-21 19:15:41,716 INFO L793 eck$LassoCheckResult]: Loop: 63#L10-2 assume !!(main_~i~0 < 100); 64#L10 assume main_~i~0 < 50;main_~i~0 := 51; 63#L10-2 [2021-10-21 19:15:41,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:41,717 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2021-10-21 19:15:41,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:41,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384782263] [2021-10-21 19:15:41,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:41,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:41,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:41,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384782263] [2021-10-21 19:15:41,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384782263] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:41,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:41,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-21 19:15:41,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910908104] [2021-10-21 19:15:41,756 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:15:41,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:41,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2021-10-21 19:15:41,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:41,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950143358] [2021-10-21 19:15:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:41,758 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:41,762 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:41,766 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:41,786 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:41,786 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:41,786 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:41,786 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:41,787 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:15:41,787 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,787 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:41,787 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:41,787 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-10-21 19:15:41,787 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:41,787 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:41,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:41,834 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:41,834 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:15:41,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,836 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:41,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:15:41,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:15:41,857 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:15:41,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-10-21 19:15:41,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,881 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:15:41,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:41,894 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:41,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:41,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:41,955 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:41,964 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:15:41,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:41,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:15:42,033 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:15:42,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,035 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:42,036 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:42,036 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:42,036 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:42,036 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:42,036 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,036 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:42,036 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:42,036 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration2_Loop [2021-10-21 19:15:42,037 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:42,037 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:42,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,092 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:42,092 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:42,092 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,093 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,105 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 [2021-10-21 19:15:42,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:42,115 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:42,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:42,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:42,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:42,117 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:42,117 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:42,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:15:42,137 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:42,139 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:15:42,140 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:15:42,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,141 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,143 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:42,143 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:15:42,143 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:42,143 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-21 19:15:42,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-21 19:15:42,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,177 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:15:42,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,206 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:42,215 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:15:42,215 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 16 transitions. Complement of second has 5 states. [2021-10-21 19:15:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:42,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:15:42,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-21 19:15:42,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:42,227 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2021-10-21 19:15:42,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:42,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2021-10-21 19:15:42,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:42,228 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2021-10-21 19:15:42,229 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:42,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 19:15:42,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-10-21 19:15:42,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:15:42,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2021-10-21 19:15:42,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:42,230 INFO L681 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 19:15:42,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2021-10-21 19:15:42,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 19:15:42,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2021-10-21 19:15:42,232 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2021-10-21 19:15:42,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:42,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:15:42,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:42,237 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:42,247 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2021-10-21 19:15:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:15:42,248 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2021-10-21 19:15:42,249 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:42,250 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2021-10-21 19:15:42,250 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-10-21 19:15:42,250 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:15:42,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2021-10-21 19:15:42,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:42,250 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-10-21 19:15:42,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2021-10-21 19:15:42,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-10-21 19:15:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 10 states have internal predecessors, (15), 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) [2021-10-21 19:15:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-10-21 19:15:42,253 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-21 19:15:42,253 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-21 19:15:42,253 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:15:42,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2021-10-21 19:15:42,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-21 19:15:42,254 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:42,254 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:42,255 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2021-10-21 19:15:42,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-21 19:15:42,255 INFO L791 eck$LassoCheckResult]: Stem: 144#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 139#L10-2 assume !!(main_~i~0 < 100); 140#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 148#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 146#L10-2 assume !!(main_~i~0 < 100); 142#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 145#L10-2 [2021-10-21 19:15:42,255 INFO L793 eck$LassoCheckResult]: Loop: 145#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 145#L10-2 [2021-10-21 19:15:42,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2021-10-21 19:15:42,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:42,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038253755] [2021-10-21 19:15:42,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:42,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:42,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-21 19:15:42,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:15:42,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038253755] [2021-10-21 19:15:42,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038253755] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:15:42,278 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:15:42,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:15:42,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678330987] [2021-10-21 19:15:42,278 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-21 19:15:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2021-10-21 19:15:42,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:42,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898006232] [2021-10-21 19:15:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:42,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:42,284 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:42,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:42,309 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:42,310 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:42,310 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:42,310 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:42,310 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:15:42,310 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,310 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:42,310 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:42,310 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-10-21 19:15:42,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:42,311 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:42,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,357 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:42,357 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:15:42,358 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,364 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-21 19:15:42,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:42,370 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:42,394 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:15:42,394 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-21 19:15:42,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,430 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,431 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-21 19:15:42,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:42,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:42,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,494 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,501 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:15:42,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:42,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-21 19:15:42,576 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:15:42,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,578 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:42,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:42,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:42,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:42,579 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:42,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:42,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:42,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration3_Loop [2021-10-21 19:15:42,579 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:42,579 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:42,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:42,638 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:42,638 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:42,639 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,640 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,654 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 [2021-10-21 19:15:42,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-21 19:15:42,662 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:42,662 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:42,662 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:42,662 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:42,666 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:42,666 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:42,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:42,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,716 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,717 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-21 19:15:42,718 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 [2021-10-21 19:15:42,726 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:42,726 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:42,726 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:42,726 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:42,726 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:42,727 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:42,727 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:42,741 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:15:42,744 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-21 19:15:42,744 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-21 19:15:42,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:42,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:42,750 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:42,755 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:15:42,755 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:15:42,755 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:15:42,755 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2021-10-21 19:15:42,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-21 19:15:42,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:42,794 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:15:42,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:42,869 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:15:42,870 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,886 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2021-10-21 19:15:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:42,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:15:42,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 19:15:42,889 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:42,890 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:15:42,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,952 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:42,964 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:15:42,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,977 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2021-10-21 19:15:42,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:42,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2021-10-21 19:15:42,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 19:15:42,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:42,980 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-21 19:15:42,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:42,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:15:42,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:43,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-21 19:15:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:15:43,075 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:15:43,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:15:43,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:15:43,083 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-21 19:15:43,083 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:43,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,109 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 15 states and 22 transitions. Complement of second has 4 states. [2021-10-21 19:15:43,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-21 19:15:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-21 19:15:43,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2021-10-21 19:15:43,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:43,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2021-10-21 19:15:43,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:43,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2021-10-21 19:15:43,112 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:15:43,112 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2021-10-21 19:15:43,113 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:43,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2021-10-21 19:15:43,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-10-21 19:15:43,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-10-21 19:15:43,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2021-10-21 19:15:43,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:43,114 INFO L681 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2021-10-21 19:15:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2021-10-21 19:15:43,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2021-10-21 19:15:43,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:43,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2021-10-21 19:15:43,116 INFO L704 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-10-21 19:15:43,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:15:43,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:15:43,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:15:43,117 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:15:43,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:15:43,126 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2021-10-21 19:15:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:15:43,127 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2021-10-21 19:15:43,127 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-21 19:15:43,128 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2021-10-21 19:15:43,128 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-21 19:15:43,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-21 19:15:43,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2021-10-21 19:15:43,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-21 19:15:43,128 INFO L681 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2021-10-21 19:15:43,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2021-10-21 19:15:43,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2021-10-21 19:15:43,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) 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) [2021-10-21 19:15:43,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2021-10-21 19:15:43,129 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-21 19:15:43,130 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2021-10-21 19:15:43,130 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:15:43,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2021-10-21 19:15:43,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-10-21 19:15:43,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:15:43,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:15:43,131 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:15:43,131 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2021-10-21 19:15:43,131 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 314#L10-2 [2021-10-21 19:15:43,131 INFO L793 eck$LassoCheckResult]: Loop: 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-21 19:15:43,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:43,132 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2021-10-21 19:15:43,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:43,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963536084] [2021-10-21 19:15:43,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:43,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,136 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:43,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:43,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2021-10-21 19:15:43,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:43,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409569504] [2021-10-21 19:15:43,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:43,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,145 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:43,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:43,150 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2021-10-21 19:15:43,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:43,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806149777] [2021-10-21 19:15:43,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:43,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,156 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:43,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:43,211 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:43,211 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:43,211 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:43,212 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:43,212 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:15:43,212 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,212 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:43,212 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:43,212 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-10-21 19:15:43,212 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:43,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:43,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,277 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:43,277 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:15:43,277 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,281 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:15:43,289 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:43,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-21 19:15:43,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,337 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,341 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:15:43,351 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:15:43,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-21 19:15:43,409 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:15:43,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,416 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:15:43,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:15:43,416 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:15:43,416 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:15:43,416 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:15:43,416 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,417 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:15:43,417 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:15:43,417 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_23.c_Iteration4_Lasso [2021-10-21 19:15:43,417 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:15:43,417 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:15:43,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,428 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:15:43,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:15:43,467 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:15:43,467 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,468 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,473 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 [2021-10-21 19:15:43,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-21 19:15:43,480 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,481 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,481 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,481 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:43,485 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:43,485 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:43,501 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,535 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,545 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 [2021-10-21 19:15:43,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:43,558 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:43,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:43,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-21 19:15:43,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,608 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,609 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,611 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 [2021-10-21 19:15:43,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:43,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:43,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:15:43,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:43,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-21 19:15:43,641 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,673 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,674 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,676 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 [2021-10-21 19:15:43,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-21 19:15:43,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:15:43,687 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:43,687 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:15:43,690 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,709 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:15:43,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,710 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-21 19:15:43,712 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 [2021-10-21 19:15:43,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,719 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:43,725 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:43,725 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:43,749 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,783 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,784 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,793 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 [2021-10-21 19:15:43,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-21 19:15:43,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,801 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:43,804 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:43,804 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:43,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:43,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,867 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-21 19:15:43,869 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 [2021-10-21 19:15:43,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:43,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,878 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,878 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:43,879 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:15:43,879 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:43,905 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:43,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-21 19:15:43,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:43,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:43,927 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:43,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-21 19:15:43,929 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 [2021-10-21 19:15:43,936 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:43,936 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:43,937 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:43,937 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:43,940 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:43,940 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:43,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,001 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-10-21 19:15:44,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,002 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-21 19:15:44,003 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 [2021-10-21 19:15:44,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,011 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,017 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:44,017 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:44,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,092 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,098 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 [2021-10-21 19:15:44,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,108 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,108 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,113 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:44,114 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:44,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-21 19:15:44,129 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-21 19:15:44,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,152 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-21 19:15:44,154 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 [2021-10-21 19:15:44,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:44,163 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,163 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,163 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,164 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:15:44,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:44,176 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,197 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-21 19:15:44,199 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 [2021-10-21 19:15:44,206 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,207 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,207 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,207 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,212 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:44,212 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:44,234 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-21 19:15:44,254 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-10-21 19:15:44,254 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,265 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-21 19:15:44,268 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 [2021-10-21 19:15:44,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,278 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:44,284 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:44,284 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:44,305 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,336 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,337 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-21 19:15:44,339 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 [2021-10-21 19:15:44,347 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,347 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,347 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,347 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:44,351 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:44,352 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:44,379 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,400 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,400 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,401 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,430 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 [2021-10-21 19:15:44,440 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,440 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:44,441 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,441 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,441 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:44,442 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:15:44,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:44,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-21 19:15:44,457 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,497 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,499 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 [2021-10-21 19:15:44,509 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:15:44,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,510 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:44,514 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:44,514 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:44,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-21 19:15:44,533 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,572 INFO L490 LassoAnalysis]: Using template '2-phase'. [2021-10-21 19:15:44,572 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,577 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-21 19:15:44,582 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 [2021-10-21 19:15:44,593 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,593 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:44,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,594 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:44,598 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:44,598 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:44,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,653 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,655 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,657 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 [2021-10-21 19:15:44,667 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,667 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:44,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,667 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:44,670 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:44,670 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:44,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-21 19:15:44,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,721 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,722 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-21 19:15:44,726 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 [2021-10-21 19:15:44,734 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,734 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:44,735 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:44,735 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,735 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,735 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:44,736 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:15:44,736 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:44,761 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2021-10-21 19:15:44,795 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,796 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,806 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 [2021-10-21 19:15:44,816 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,816 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:44,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,816 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:15:44,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-21 19:15:44,819 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:15:44,820 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:15:44,833 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,871 INFO L490 LassoAnalysis]: Using template '3-phase'. [2021-10-21 19:15:44,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,872 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,878 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 [2021-10-21 19:15:44,888 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,888 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:15:44,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,889 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,894 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:44,895 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:44,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-21 19:15:44,917 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-21 19:15:44,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,941 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:44,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-21 19:15:44,943 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-21 19:15:44,951 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:44,952 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:15:44,952 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:44,952 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:44,952 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:44,957 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:44,957 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:44,978 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:44,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:44,998 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:44,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:44,999 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-21 19:15:45,001 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 [2021-10-21 19:15:45,009 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,009 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:15:45,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:45,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,010 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,011 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:15:45,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:45,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,050 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-21 19:15:45,050 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,051 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-21 19:15:45,054 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 [2021-10-21 19:15:45,063 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,063 INFO L338 nArgumentSynthesizer]: Template has degree 2. [2021-10-21 19:15:45,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,063 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,070 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:45,071 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:45,083 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,104 INFO L490 LassoAnalysis]: Using template '4-phase'. [2021-10-21 19:15:45,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,105 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-10-21 19:15:45,106 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 [2021-10-21 19:15:45,114 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,114 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,114 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,115 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:45,122 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:45,122 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:45,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2021-10-21 19:15:45,175 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,176 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-10-21 19:15:45,191 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 [2021-10-21 19:15:45,199 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,200 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,200 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:45,208 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:45,208 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:45,226 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,264 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,265 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,274 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 [2021-10-21 19:15:45,285 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,285 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:45,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,285 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:45,289 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-10-21 19:15:45,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:45,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-10-21 19:15:45,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,345 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,347 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 [2021-10-21 19:15:45,357 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,357 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,357 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,357 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,358 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-10-21 19:15:45,362 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-10-21 19:15:45,362 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-10-21 19:15:45,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-10-21 19:15:45,393 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,428 INFO L490 LassoAnalysis]: Using template '2-lex'. [2021-10-21 19:15:45,428 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,430 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,433 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 [2021-10-21 19:15:45,444 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,444 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:45,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,444 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,448 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:45,449 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:45,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-10-21 19:15:45,465 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,498 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,499 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,501 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 [2021-10-21 19:15:45,511 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,511 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:45,511 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,511 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,511 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,514 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:45,515 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:45,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-10-21 19:15:45,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2021-10-21 19:15:45,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,560 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-10-21 19:15:45,562 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 [2021-10-21 19:15:45,571 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,571 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:45,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:45,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,571 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,572 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-10-21 19:15:45,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:45,581 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2021-10-21 19:15:45,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,615 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-10-21 19:15:45,617 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 [2021-10-21 19:15:45,624 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,624 INFO L338 nArgumentSynthesizer]: Template has degree 1. [2021-10-21 19:15:45,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,625 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-10-21 19:15:45,627 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-10-21 19:15:45,627 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-21 19:15:45,642 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,677 INFO L490 LassoAnalysis]: Using template '3-lex'. [2021-10-21 19:15:45,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,681 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,683 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 [2021-10-21 19:15:45,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-10-21 19:15:45,693 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,693 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,693 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,693 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,693 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:15:45,701 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-21 19:15:45,701 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-21 19:15:45,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,766 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,767 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2021-10-21 19:15:45,768 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 [2021-10-21 19:15:45,776 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,776 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,777 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:15:45,785 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-21 19:15:45,785 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-21 19:15:45,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,837 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-10-21 19:15:45,838 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 [2021-10-21 19:15:45,846 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,846 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:15:45,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,847 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:15:45,848 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:15:45,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:15:45,851 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2021-10-21 19:15:45,872 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:15:45,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:15:45,873 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:15:45,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-10-21 19:15:45,877 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 [2021-10-21 19:15:45,885 WARN L333 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2021-10-21 19:15:45,885 INFO L338 nArgumentSynthesizer]: Template has degree 3. [2021-10-21 19:15:45,886 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:15:45,886 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:15:45,886 INFO L205 nArgumentSynthesizer]: 6 template conjuncts. [2021-10-21 19:15:45,892 INFO L401 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2021-10-21 19:15:45,893 INFO L402 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2021-10-21 19:15:45,914 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:15:45,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-10-21 19:15:45,935 INFO L469 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2021-10-21 19:15:45,935 INFO L791 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-21 19:15:45,935 INFO L793 eck$LassoCheckResult]: Loop: 314#L10-2 assume !!(main_~i~0 < 100); 315#L10 assume main_~i~0 < 50;main_~i~0 := 51; 316#L10-2 assume !!(main_~i~0 < 100); 317#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 314#L10-2 [2021-10-21 19:15:45,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:45,936 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2021-10-21 19:15:45,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:45,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617616983] [2021-10-21 19:15:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:45,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,941 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:45,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:45,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:45,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2021-10-21 19:15:45,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:45,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560822425] [2021-10-21 19:15:45,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:45,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:45,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,951 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,955 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:45,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:15:45,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2021-10-21 19:15:45,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:15:45,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601937386] [2021-10-21 19:15:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:15:45,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:15:45,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,961 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:15:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:15:45,967 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:46,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:15:46 BoogieIcfgContainer [2021-10-21 19:15:46,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:15:46,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:15:46,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:15:46,019 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:15:46,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:15:40" (3/4) ... [2021-10-21 19:15:46,022 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:15:46,051 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:15:46,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:15:46,053 INFO L168 Benchmark]: Toolchain (without parser) took 6365.43 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 66.9 MB in the beginning and 77.2 MB in the end (delta: -10.3 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,053 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 82.7 MB in the beginning and 82.6 MB in the end (delta: 51.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:46,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.56 ms. Allocated memory is still 104.9 MB. Free memory was 66.6 MB in the beginning and 80.6 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.3 MB in the beginning and 79.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:15:46,055 INFO L168 Benchmark]: Boogie Preprocessor took 23.44 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 78.2 MB in the end (delta: 928.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,055 INFO L168 Benchmark]: RCFGBuilder took 259.55 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 70.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,055 INFO L168 Benchmark]: BuchiAutomizer took 5698.84 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 70.6 MB in the beginning and 79.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,056 INFO L168 Benchmark]: Witness Printer took 33.16 ms. Allocated memory is still 140.5 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:15:46,058 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 104.9 MB. Free memory was 82.7 MB in the beginning and 82.6 MB in the end (delta: 51.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.56 ms. Allocated memory is still 104.9 MB. Free memory was 66.6 MB in the beginning and 80.6 MB in the end (delta: -13.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 104.9 MB. Free memory was 80.3 MB in the beginning and 79.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.44 ms. Allocated memory is still 104.9 MB. Free memory was 79.1 MB in the beginning and 78.2 MB in the end (delta: 928.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 259.55 ms. Allocated memory is still 104.9 MB. Free memory was 78.2 MB in the beginning and 70.6 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5698.84 ms. Allocated memory was 104.9 MB in the beginning and 140.5 MB in the end (delta: 35.7 MB). Free memory was 70.6 MB in the beginning and 79.3 MB in the end (delta: -8.7 MB). Peak memory consumption was 28.6 MB. Max. memory is 16.1 GB. * Witness Printer took 33.16 ms. Allocated memory is still 140.5 MB. Free memory was 79.3 MB in the beginning and 77.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 18.1ms AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 59.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:15:46,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dafe47d5-9664-49c0-99e2-5b95a2899099/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...