./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/aviad.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/aviad.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX --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 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:35:10,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:35:10,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:35:10,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:35:10,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:35:10,798 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:35:10,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:35:10,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:35:10,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:35:10,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:35:10,808 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:35:10,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:35:10,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:35:10,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:35:10,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:35:10,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:35:10,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:35:10,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:35:10,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:35:10,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:35:10,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:35:10,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:35:10,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:35:10,833 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:35:10,837 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:35:10,838 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:35:10,839 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:35:10,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:35:10,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:35:10,843 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:35:10,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:35:10,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:35:10,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:35:10,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:35:10,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:35:10,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:35:10,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:35:10,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:35:10,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:35:10,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:35:10,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:35:10,855 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-09 09:35:10,883 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:35:10,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:35:10,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:35:10,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:35:10,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:35:10,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:35:10,886 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:35:10,886 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:35:10,886 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:35:10,887 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:35:10,887 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:35:10,887 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:35:10,888 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:35:10,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:35:10,888 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:35:10,889 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:35:10,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:35:10,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:35:10,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:35:10,890 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:35:10,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:35:10,890 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:35:10,891 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:35:10,891 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:35:10,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:35:10,892 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:35:10,892 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:35:10,892 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:35:10,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:35:10,894 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:35:10,894 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_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 [2021-11-09 09:35:11,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:35:11,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:35:11,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:35:11,302 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:35:11,303 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:35:11,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/termination-crafted-lit/aviad.c [2021-11-09 09:35:11,381 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/data/5feefc911/d787e809a2c244aa909165e54d23ec7c/FLAG53c86317e [2021-11-09 09:35:11,935 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:35:11,936 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/sv-benchmarks/c/termination-crafted-lit/aviad.c [2021-11-09 09:35:11,947 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/data/5feefc911/d787e809a2c244aa909165e54d23ec7c/FLAG53c86317e [2021-11-09 09:35:12,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/data/5feefc911/d787e809a2c244aa909165e54d23ec7c [2021-11-09 09:35:12,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:35:12,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:35:12,317 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:35:12,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:35:12,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:35:12,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33611780 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12, skipping insertion in model container [2021-11-09 09:35:12,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:35:12,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:35:12,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:35:12,524 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:35:12,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:35:12,547 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:35:12,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12 WrapperNode [2021-11-09 09:35:12,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:35:12,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:35:12,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:35:12,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:35:12,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:35:12,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:35:12,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:35:12,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:35:12,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:35:12,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:35:12,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:35:12,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:35:12,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (1/1) ... [2021-11-09 09:35:12,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:12,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:12,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:12,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:35:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:35:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:35:12,872 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:35:12,873 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-09 09:35:12,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:35:12 BoogieIcfgContainer [2021-11-09 09:35:12,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:35:12,877 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:35:12,877 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:35:12,880 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:35:12,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:35:12,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:35:12" (1/3) ... [2021-11-09 09:35:12,883 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23981151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:35:12, skipping insertion in model container [2021-11-09 09:35:12,883 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:35:12,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:35:12" (2/3) ... [2021-11-09 09:35:12,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23981151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:35:12, skipping insertion in model container [2021-11-09 09:35:12,884 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:35:12,884 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:35:12" (3/3) ... [2021-11-09 09:35:12,886 INFO L389 chiAutomizerObserver]: Analyzing ICFG aviad.c [2021-11-09 09:35:12,963 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:35:12,963 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:35:12,963 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:35:12,968 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:35:12,968 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:35:12,969 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:35:12,969 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:35:12,969 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:35:12,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 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) [2021-11-09 09:35:13,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:35:13,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:35:13,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:35:13,013 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 09:35:13,013 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 09:35:13,013 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:35:13,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 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) [2021-11-09 09:35:13,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-09 09:35:13,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:35:13,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:35:13,016 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-09 09:35:13,016 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-09 09:35:13,023 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~ret2, main_~x~0, main_~count~1;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;f_#in~a := main_~x~0;havoc f_#res;havoc f_#t~post0, f_~a, f_~tmp~0, f_~count~0;f_~a := f_#in~a;havoc f_~tmp~0;f_~count~0 := 0; 10#L11-2true [2021-11-09 09:35:13,023 INFO L793 eck$LassoCheckResult]: Loop: 10#L11-2true assume !!(f_~a > 1);f_~tmp~0 := (if f_~a < 0 && 0 != f_~a % 2 then f_~a % 2 - 2 else f_~a % 2); 6#L13true assume 0 == f_~tmp~0;f_~a := (if f_~a < 0 && 0 != f_~a % 2 then 1 + f_~a / 2 else f_~a / 2); 7#L13-2true f_#t~post0 := f_~count~0;f_~count~0 := 1 + f_#t~post0;havoc f_#t~post0; 10#L11-2true [2021-11-09 09:35:13,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:13,037 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-11-09 09:35:13,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:13,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658873025] [2021-11-09 09:35:13,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:13,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,132 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:35:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:35:13,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:13,171 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-11-09 09:35:13,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:13,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606981743] [2021-11-09 09:35:13,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:13,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,218 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:35:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,241 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:35:13,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 963342, now seen corresponding path program 1 times [2021-11-09 09:35:13,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:35:13,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550937801] [2021-11-09 09:35:13,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:35:13,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:35:13,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:35:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:35:13,304 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:35:13,498 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:35:13,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:35:13,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:35:13,508 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:35:13,508 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-09 09:35:13,508 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:13,508 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:35:13,508 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:35:13,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2021-11-09 09:35:13,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:35:13,509 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:35:13,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:13,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:13,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:13,680 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:35:13,680 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-09 09:35:13,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:13,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:13,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:13,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:35:13,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:35:13,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-09 09:35:13,743 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-09 09:35:13,744 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0=0} Honda state: {ULTIMATE.start_f_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-09 09:35:13,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:13,782 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:13,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:13,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:13,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-09 09:35:13,788 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-09 09:35:13,788 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:35:13,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:13,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:13,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:13,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:13,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-09 09:35:13,869 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-09 09:35:13,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-09 09:35:13,956 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-09 09:35:13,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:13,963 INFO L210 LassoAnalysis]: Preferences: [2021-11-09 09:35:13,964 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-09 09:35:13,964 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-09 09:35:13,964 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-09 09:35:13,964 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-09 09:35:13,964 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:13,964 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-09 09:35:13,964 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-09 09:35:13,964 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2021-11-09 09:35:13,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-09 09:35:13,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-09 09:35:13,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:13,973 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:13,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-09 09:35:14,074 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-09 09:35:14,079 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-09 09:35:14,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:14,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:14,082 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:14,092 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 [2021-11-09 09:35:14,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:35:14,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:35:14,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:35:14,103 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:35:14,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:35:14,105 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:35:14,105 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:35:14,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-09 09:35:14,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-09 09:35:14,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-09 09:35:14,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:14,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:14,146 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:14,150 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 [2021-11-09 09:35:14,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-09 09:35:14,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-09 09:35:14,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-09 09:35:14,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-09 09:35:14,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-09 09:35:14,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-09 09:35:14,165 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-09 09:35:14,165 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-09 09:35:14,180 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-09 09:35:14,208 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-09 09:35:14,209 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-09 09:35:14,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:35:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:35:14,212 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:35:14,219 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-09 09:35:14,219 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-09 09:35:14,220 INFO L513 LassoAnalysis]: Proved termination. [2021-11-09 09:35:14,220 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~a) = 1*ULTIMATE.start_f_~a Supporting invariants [] [2021-11-09 09:35:14,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-09 09:35:14,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:14,252 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-09 09:35:14,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:35:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:14,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-09 09:35:14,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:35:14,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-09 09:35:14,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:35:14,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-09 09:35:14,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:35:14,510 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-11-09 09:35:14,511 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 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) Second operand has 4 states, 4 states have (on average 1.0) 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) [2021-11-09 09:35:14,552 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 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). Second operand has 4 states, 4 states have (on average 1.0) 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 24 states and 28 transitions. Complement of second has 7 states. [2021-11-09 09:35:14,553 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 [2021-11-09 09:35:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) 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) [2021-11-09 09:35:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-11-09 09:35:14,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 3 letters. [2021-11-09 09:35:14,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:35:14,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 4 letters. Loop has 3 letters. [2021-11-09 09:35:14,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:35:14,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 6 letters. [2021-11-09 09:35:14,559 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-09 09:35:14,560 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 28 transitions. [2021-11-09 09:35:14,578 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:35:14,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-11-09 09:35:14,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-09 09:35:14,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-09 09:35:14,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-09 09:35:14,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:35:14,583 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:35:14,583 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:35:14,583 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:35:14,583 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:35:14,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:35:14,583 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-09 09:35:14,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-09 09:35:14,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:35:14 BoogieIcfgContainer [2021-11-09 09:35:14,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:35:14,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:35:14,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:35:14,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:35:14,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:35:12" (3/4) ... [2021-11-09 09:35:14,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:35:14,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:35:14,595 INFO L168 Benchmark]: Toolchain (without parser) took 2278.75 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 50.4 MB in the beginning and 86.7 MB in the end (delta: -36.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:35:14,595 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:35:14,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.73 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 50.2 MB in the beginning and 97.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:35:14,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.74 ms. Allocated memory is still 119.5 MB. Free memory was 97.1 MB in the beginning and 95.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:35:14,598 INFO L168 Benchmark]: Boogie Preprocessor took 18.51 ms. Allocated memory is still 119.5 MB. Free memory was 95.5 MB in the beginning and 94.9 MB in the end (delta: 609.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:35:14,598 INFO L168 Benchmark]: RCFGBuilder took 278.12 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 86.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:35:14,599 INFO L168 Benchmark]: BuchiAutomizer took 1711.98 ms. Allocated memory is still 119.5 MB. Free memory was 86.1 MB in the beginning and 86.7 MB in the end (delta: -588.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:35:14,599 INFO L168 Benchmark]: Witness Printer took 3.76 ms. Allocated memory is still 119.5 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:35:14,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.73 ms. Allocated memory was 86.0 MB in the beginning and 119.5 MB in the end (delta: 33.6 MB). Free memory was 50.2 MB in the beginning and 97.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.74 ms. Allocated memory is still 119.5 MB. Free memory was 97.1 MB in the beginning and 95.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.51 ms. Allocated memory is still 119.5 MB. Free memory was 95.5 MB in the beginning and 94.9 MB in the end (delta: 609.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 278.12 ms. Allocated memory is still 119.5 MB. Free memory was 94.4 MB in the beginning and 86.6 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1711.98 ms. Allocated memory is still 119.5 MB. Free memory was 86.1 MB in the beginning and 86.7 MB in the end (delta: -588.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.76 ms. Allocated memory is still 119.5 MB. Free memory is still 86.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function a and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 6 SDslu, 10 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp78 ukn100 mio100 lsp100 div500 bol100 ite100 ukn100 eq131 hnf46 smp57 dnf100 smp100 tf106 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-09 09:35:14,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0adce8f3-a86d-45b3-9f69-b3c51aaf9064/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE