./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0 --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 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 15:26:36,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 15:26:36,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 15:26:36,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 15:26:36,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 15:26:36,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 15:26:36,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 15:26:36,792 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 15:26:36,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 15:26:36,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 15:26:36,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 15:26:36,801 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 15:26:36,802 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 15:26:36,803 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 15:26:36,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 15:26:36,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 15:26:36,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 15:26:36,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 15:26:36,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 15:26:36,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 15:26:36,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 15:26:36,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 15:26:36,844 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 15:26:36,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 15:26:36,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 15:26:36,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 15:26:36,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 15:26:36,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 15:26:36,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 15:26:36,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 15:26:36,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 15:26:36,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 15:26:36,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 15:26:36,871 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 15:26:36,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 15:26:36,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 15:26:36,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 15:26:36,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 15:26:36,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 15:26:36,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 15:26:36,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 15:26:36,878 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-22 15:26:36,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 15:26:36,942 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 15:26:36,943 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 15:26:36,943 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 15:26:36,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 15:26:36,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 15:26:36,945 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 15:26:36,946 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 15:26:36,946 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 15:26:36,946 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 15:26:36,947 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 15:26:36,948 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 15:26:36,948 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 15:26:36,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 15:26:36,949 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 15:26:36,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 15:26:36,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 15:26:36,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 15:26:36,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 15:26:36,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 15:26:36,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 15:26:36,950 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 15:26:36,951 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 15:26:36,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 15:26:36,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 15:26:36,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 15:26:36,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 15:26:36,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 15:26:36,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 15:26:36,956 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 15:26:36,956 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_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d237a1b253e1662249abfec0a27795a205783446cdc8f92e994520c562b96f7 [2021-11-22 15:26:37,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 15:26:37,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 15:26:37,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 15:26:37,286 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 15:26:37,287 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 15:26:37,289 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-22 15:26:37,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/data/766da72e3/67d2fe037a594fa5bb5bc0003d4a8547/FLAG73ba042cb [2021-11-22 15:26:37,918 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 15:26:37,918 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/sv-benchmarks/c/termination-crafted/Parallel.c [2021-11-22 15:26:37,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/data/766da72e3/67d2fe037a594fa5bb5bc0003d4a8547/FLAG73ba042cb [2021-11-22 15:26:38,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/data/766da72e3/67d2fe037a594fa5bb5bc0003d4a8547 [2021-11-22 15:26:38,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 15:26:38,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 15:26:38,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 15:26:38,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 15:26:38,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 15:26:38,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54759a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38, skipping insertion in model container [2021-11-22 15:26:38,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 15:26:38,303 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 15:26:38,484 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:26:38,492 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 15:26:38,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 15:26:38,518 INFO L208 MainTranslator]: Completed translation [2021-11-22 15:26:38,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38 WrapperNode [2021-11-22 15:26:38,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 15:26:38,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 15:26:38,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 15:26:38,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 15:26:38,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,554 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2021-11-22 15:26:38,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 15:26:38,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 15:26:38,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 15:26:38,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 15:26:38,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 15:26:38,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 15:26:38,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 15:26:38,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 15:26:38,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (1/1) ... [2021-11-22 15:26:38,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:38,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:38,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:38,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 15:26:38,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 15:26:38,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 15:26:38,771 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 15:26:38,774 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 15:26:38,874 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 15:26:38,884 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 15:26:38,885 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 15:26:38,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:26:38 BoogieIcfgContainer [2021-11-22 15:26:38,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 15:26:38,891 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 15:26:38,892 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 15:26:38,895 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 15:26:38,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:26:38,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 03:26:38" (1/3) ... [2021-11-22 15:26:38,899 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ebcd8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:26:38, skipping insertion in model container [2021-11-22 15:26:38,899 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:26:38,899 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 03:26:38" (2/3) ... [2021-11-22 15:26:38,900 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ebcd8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 03:26:38, skipping insertion in model container [2021-11-22 15:26:38,900 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 15:26:38,900 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:26:38" (3/3) ... [2021-11-22 15:26:38,903 INFO L388 chiAutomizerObserver]: Analyzing ICFG Parallel.c [2021-11-22 15:26:38,970 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 15:26:38,970 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 15:26:38,970 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 15:26:38,970 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 15:26:38,970 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 15:26:38,970 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 15:26:38,971 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 15:26:38,971 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 15:26:38,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2021-11-22 15:26:39,008 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 15:26:39,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:26:39,008 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:26:39,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 15:26:39,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 15:26:39,016 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 15:26:39,016 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2021-11-22 15:26:39,017 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 15:26:39,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:26:39,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:26:39,018 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 15:26:39,018 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 15:26:39,026 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L23-2true [2021-11-22 15:26:39,027 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 6#L23true assume !(main_~x~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 5#L23-2true [2021-11-22 15:26:39,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:39,034 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-22 15:26:39,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:39,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780508938] [2021-11-22 15:26:39,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:39,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,125 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:39,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:39,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-22 15:26:39,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:39,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820512821] [2021-11-22 15:26:39,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:39,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,163 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,169 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:39,172 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-22 15:26:39,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:39,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687748813] [2021-11-22 15:26:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:39,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:39,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,180 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:39,186 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:39,264 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:26:39,265 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:26:39,265 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:26:39,265 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:26:39,266 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 15:26:39,266 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,266 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:26:39,266 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:26:39,266 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-11-22 15:26:39,266 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:26:39,266 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:26:39,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,367 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:26:39,368 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 15:26:39,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 15:26:39,457 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:39,458 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:39,489 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:26:39,489 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: [] [2021-11-22 15:26:39,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-22 15:26:39,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 15:26:39,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:39,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:39,559 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:26:39,559 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: [] [2021-11-22 15:26:39,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:39,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:39,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:39,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 15:26:39,611 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:26:39,611 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 15:26:39,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:39,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:39,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:39,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 15:26:39,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:39,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,684 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-22 15:26:39,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 15:26:39,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:39,728 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 15:26:39,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-22 15:26:39,733 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:26:39,733 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:26:39,733 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:26:39,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:26:39,734 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 15:26:39,734 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,734 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:26:39,734 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:26:39,734 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration1_Loop [2021-11-22 15:26:39,734 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:26:39,734 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:26:39,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:39,832 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:26:39,838 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 15:26:39,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,857 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,865 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 [2021-11-22 15:26:39,878 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:39,878 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:39,879 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:39,879 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:39,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-22 15:26:39,895 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 15:26:39,895 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 15:26:39,925 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:26:39,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:39,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:39,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:39,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:39,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-22 15:26:39,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-22 15:26:39,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:39,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:39,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:39,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:39,992 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 15:26:39,992 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 15:26:40,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:26:40,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,067 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 [2021-11-22 15:26:40,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:40,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:26:40,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:40,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:40,078 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:40,079 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:26:40,079 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:26:40,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-22 15:26:40,091 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:26:40,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,118 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-22 15:26:40,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-22 15:26:40,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:40,131 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:26:40,131 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:40,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:40,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:40,132 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 15:26:40,132 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:26:40,148 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 15:26:40,175 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 15:26:40,176 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 15:26:40,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,178 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,181 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 15:26:40,181 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 15:26:40,181 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 15:26:40,182 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2021-11-22 15:26:40,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-22 15:26:40,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,204 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 15:26:40,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:40,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:26:40,247 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:26:40,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:26:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:26:40,266 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-22 15:26:40,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:26:40,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:26:40,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-22 15:26:40,370 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-22 15:26:40,412 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 22 states and 31 transitions. Complement of second has 7 states. [2021-11-22 15:26:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-22 15:26:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-11-22 15:26:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2021-11-22 15:26:40,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-22 15:26:40,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:40,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-22 15:26:40,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:40,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2021-11-22 15:26:40,425 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:40,425 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 31 transitions. [2021-11-22 15:26:40,428 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 15:26:40,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 9 states and 12 transitions. [2021-11-22 15:26:40,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2021-11-22 15:26:40,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2021-11-22 15:26:40,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-11-22 15:26:40,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-22 15:26:40,432 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-11-22 15:26:40,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-11-22 15:26:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-11-22 15:26:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-22 15:26:40,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2021-11-22 15:26:40,454 INFO L704 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-22 15:26:40,455 INFO L587 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-22 15:26:40,455 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 15:26:40,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2021-11-22 15:26:40,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-22 15:26:40,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 15:26:40,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 15:26:40,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 15:26:40,456 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-22 15:26:40,456 INFO L791 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 70#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 76#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 72#L23 [2021-11-22 15:26:40,456 INFO L793 eck$LassoCheckResult]: Loop: 72#L23 assume main_~x~0#1 >= 0;main_~x~0#1 := main_~x~0#1 - 1; 71#L23-2 assume !!(main_~x~0#1 >= 0 || main_~y~0#1 >= 0); 72#L23 [2021-11-22 15:26:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:40,457 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-22 15:26:40,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:40,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137705129] [2021-11-22 15:26:40,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:40,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,462 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:40,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:40,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2021-11-22 15:26:40,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:40,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851883951] [2021-11-22 15:26:40,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:40,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,472 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:40,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:40,478 INFO L85 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2021-11-22 15:26:40,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 15:26:40,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811414936] [2021-11-22 15:26:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 15:26:40,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 15:26:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,484 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 15:26:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 15:26:40,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 15:26:40,514 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:26:40,515 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:26:40,515 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:26:40,515 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:26:40,515 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 15:26:40,515 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,515 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:26:40,515 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:26:40,515 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-11-22 15:26:40,516 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:26:40,516 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:26:40,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:40,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:40,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:40,599 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:26:40,599 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 15:26:40,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,617 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-22 15:26:40,619 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:40,619 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:40,645 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:26:40,645 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: [] [2021-11-22 15:26:40,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,677 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-22 15:26:40,701 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:40,701 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:40,722 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 15:26:40,722 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 15:26:40,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-11-22 15:26:40,742 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,743 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-22 15:26:40,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 15:26:40,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:40,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:40,805 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:40,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-22 15:26:40,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 15:26:40,812 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 15:26:40,941 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 15:26:40,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:40,945 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 15:26:40,945 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 15:26:40,945 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 15:26:40,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 15:26:40,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 15:26:40,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:40,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 15:26:40,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 15:26:40,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: Parallel.c_Iteration2_Loop [2021-11-22 15:26:40,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 15:26:40,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 15:26:40,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:40,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:40,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 15:26:41,030 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 15:26:41,030 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 15:26:41,030 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:41,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:41,031 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:41,041 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 [2021-11-22 15:26:41,051 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:41,051 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:41,051 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:41,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:41,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 15:26:41,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 15:26:41,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-22 15:26:41,084 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:26:41,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:41,117 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:41,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:41,118 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:41,125 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 [2021-11-22 15:26:41,134 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:41,134 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:41,134 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 15:26:41,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:41,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-22 15:26:41,146 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 15:26:41,146 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 15:26:41,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 15:26:41,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:41,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:41,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:41,203 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:41,210 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 [2021-11-22 15:26:41,232 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 15:26:41,232 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 15:26:41,233 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 15:26:41,233 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-22 15:26:41,233 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 15:26:41,235 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-22 15:26:41,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 15:26:41,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-22 15:26:41,248 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 15:26:41,251 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 15:26:41,251 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 15:26:41,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 15:26:41,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 15:26:41,252 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 15:26:41,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-22 15:26:41,257 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 15:26:41,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 15:26:41,257 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 15:26:41,257 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-11-22 15:26:41,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:41,280 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 15:26:41,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 15:26:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:26:41,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 15:26:41,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:26:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 15:26:41,322 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 15:26:41,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 15:26:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 15:26:41,376 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-22 15:26:41,376 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 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) [2021-11-22 15:26:41,386 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 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 15 states and 21 transitions. Complement of second has 4 states. [2021-11-22 15:26:41,386 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 [2021-11-22 15:26:41,387 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) [2021-11-22 15:26:41,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-22 15:26:41,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-22 15:26:41,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:41,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-22 15:26:41,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:41,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 4 letters. [2021-11-22 15:26:41,389 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 15:26:41,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2021-11-22 15:26:41,390 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 15:26:41,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-11-22 15:26:41,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 15:26:41,390 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 15:26:41,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 15:26:41,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 15:26:41,391 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:26:41,391 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:26:41,391 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 15:26:41,391 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 15:26:41,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 15:26:41,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 15:26:41,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 15:26:41,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 03:26:41 BoogieIcfgContainer [2021-11-22 15:26:41,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 15:26:41,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 15:26:41,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 15:26:41,400 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 15:26:41,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 03:26:38" (3/4) ... [2021-11-22 15:26:41,403 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 15:26:41,403 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 15:26:41,404 INFO L158 Benchmark]: Toolchain (without parser) took 3129.46ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 58.8MB in the beginning and 56.4MB in the end (delta: 2.4MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2021-11-22 15:26:41,405 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:26:41,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.26ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 76.0MB in the end (delta: -17.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 15:26:41,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.37ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:26:41,406 INFO L158 Benchmark]: Boogie Preprocessor took 21.64ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 15:26:41,407 INFO L158 Benchmark]: RCFGBuilder took 310.28ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 65.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 15:26:41,408 INFO L158 Benchmark]: BuchiAutomizer took 2507.43ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 65.6MB in the beginning and 57.2MB in the end (delta: 8.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-11-22 15:26:41,408 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 121.6MB. Free memory was 57.2MB in the beginning and 56.4MB in the end (delta: 778.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 15:26:41,411 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 100.7MB. Free memory is still 74.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.26ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 76.0MB in the end (delta: -17.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.37ms. Allocated memory is still 100.7MB. Free memory was 76.0MB in the beginning and 74.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.64ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 73.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.28ms. Allocated memory is still 100.7MB. Free memory was 73.7MB in the beginning and 65.6MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2507.43ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 65.6MB in the beginning and 57.2MB in the end (delta: 8.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 121.6MB. Free memory was 57.2MB in the beginning and 56.4MB in the end (delta: 778.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 5 locations. One deterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 8 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax181 hnf100 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf131 smp95 tf109 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 86ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 15:26:41,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:41,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-22 15:26:41,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c5400a8-97d6-4c69-8254-074942de47b1/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE