./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt --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 85017c4a5a64f245bd703090448e8d5785d54b75 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:25:43,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:25:43,723 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:25:43,789 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:25:43,790 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:25:43,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:25:43,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:25:43,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:25:43,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:25:43,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:25:43,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:25:43,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:25:43,808 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:25:43,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:25:43,812 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:25:43,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:25:43,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:25:43,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:25:43,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:25:43,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:25:43,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:25:43,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:25:43,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:25:43,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:25:43,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:25:43,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:25:43,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:25:43,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:25:43,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:25:43,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:25:43,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:25:43,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:25:43,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:25:43,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:25:43,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:25:43,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:25:43,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:25:43,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:25:43,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:25:43,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:25:43,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:25:43,861 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:25:43,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:25:43,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:25:43,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:25:43,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:25:43,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:25:43,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:25:43,918 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:25:43,919 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:25:43,919 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:25:43,919 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:25:43,921 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:25:43,921 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:25:43,921 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:25:43,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:25:43,922 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:25:43,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:25:43,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:25:43,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:25:43,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:25:43,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:25:43,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:25:43,924 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:25:43,924 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:25:43,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:25:43,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:25:43,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:25:43,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:25:43,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:25:43,926 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:25:43,928 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:25:43,928 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_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85017c4a5a64f245bd703090448e8d5785d54b75 [2021-10-13 01:25:44,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:25:44,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:25:44,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:25:44,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:25:44,317 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:25:44,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-13 01:25:44,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/data/3ad22e559/02a81dbd2ce84f1da3dd9d86a8a19ef6/FLAG5ded1ec2b [2021-10-13 01:25:44,979 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:25:44,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-13 01:25:44,990 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/data/3ad22e559/02a81dbd2ce84f1da3dd9d86a8a19ef6/FLAG5ded1ec2b [2021-10-13 01:25:45,360 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/data/3ad22e559/02a81dbd2ce84f1da3dd9d86a8a19ef6 [2021-10-13 01:25:45,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:25:45,368 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:25:45,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:45,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:25:45,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:25:45,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de05781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45, skipping insertion in model container [2021-10-13 01:25:45,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:25:45,411 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:25:45,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:45,616 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:25:45,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:25:45,644 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:25:45,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45 WrapperNode [2021-10-13 01:25:45,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:25:45,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:45,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:25:45,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:25:45,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:25:45,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:25:45,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:25:45,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:25:45,711 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,713 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,713 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:25:45,729 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:25:45,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:25:45,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:25:45,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (1/1) ... [2021-10-13 01:25:45,743 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:45,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:45,779 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:45,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:25:45,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:25:45,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:25:46,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:25:46,045 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 01:25:46,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:46 BoogieIcfgContainer [2021-10-13 01:25:46,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:25:46,052 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:25:46,052 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:25:46,056 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:25:46,056 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:46,057 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:25:45" (1/3) ... [2021-10-13 01:25:46,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76621263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:25:46, skipping insertion in model container [2021-10-13 01:25:46,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:46,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:25:45" (2/3) ... [2021-10-13 01:25:46,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76621263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:25:46, skipping insertion in model container [2021-10-13 01:25:46,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:25:46,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:46" (3/3) ... [2021-10-13 01:25:46,061 INFO L389 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-13 01:25:46,117 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:25:46,117 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:25:46,117 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:25:46,117 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:25:46,117 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:25:46,118 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:25:46,118 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:25:46,118 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:25:46,130 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:46,148 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:25:46,148 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:46,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:46,155 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:25:46,156 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:25:46,156 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:25:46,156 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:46,157 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-13 01:25:46,157 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:25:46,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:25:46,157 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-13 01:25:46,157 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-13 01:25:46,163 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := 1; 6#L18-2true [2021-10-13 01:25:46,164 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~y~0 := 1 + main_~y~0; 6#L18-2true [2021-10-13 01:25:46,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:46,170 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-13 01:25:46,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:46,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294481817] [2021-10-13 01:25:46,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:46,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,268 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,291 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:46,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:46,295 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-13 01:25:46,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:46,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671364823] [2021-10-13 01:25:46,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:46,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,312 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,320 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:46,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:46,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-13 01:25:46,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:25:46,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009203384] [2021-10-13 01:25:46,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:25:46,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:25:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,334 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:25:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:25:46,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:25:46,437 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:25:46,438 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:25:46,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:25:46,439 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:25:46,439 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:25:46,439 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:46,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:25:46,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:25:46,440 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2021-10-13 01:25:46,440 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:25:46,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:25:46,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:46,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:46,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:46,578 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:25:46,579 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:25:46,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:46,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:46,614 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:46,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:25:46,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:25:46,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:25:46,696 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:25:46,696 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:25:46,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:46,746 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:46,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:46,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:46,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:25:46,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:25:46,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:25:46,795 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:25:46,795 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:25:46,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:46,843 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:46,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:46,845 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:46,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:25:46,852 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:25:46,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:25:46,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:46,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:46,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:46,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:46,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:25:46,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:25:46,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:25:47,161 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:25:47,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,170 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:25:47,170 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:25:47,170 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:25:47,170 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:25:47,171 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:25:47,171 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,171 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:25:47,171 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:25:47,171 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2021-10-13 01:25:47,171 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:25:47,171 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:25:47,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:47,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:47,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:25:47,246 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:25:47,252 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:25:47,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,255 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:25:47,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:25:47,320 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:25:47,320 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:25:47,353 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:25:47,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,402 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,404 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:25:47,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:25:47,438 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-13 01:25:47,438 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-13 01:25:47,468 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:25:47,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,517 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,518 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:25:47,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:25:47,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:25:47,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:25:47,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 01:25:47,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:25:47,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,597 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-13 01:25:47,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,600 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 01:25:47,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,618 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 01:25:47,648 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-13 01:25:47,650 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-13 01:25:47,684 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:25:47,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,728 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,738 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,750 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,750 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 01:25:47,757 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-13 01:25:47,757 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-13 01:25:47,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 01:25:47,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:25:47,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,837 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:25:47,862 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:25:47,862 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:25:47,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:25:47,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:25:47,863 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-13 01:25:47,867 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-13 01:25:47,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:25:47,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 01:25:47,890 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:25:47,899 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-13 01:25:47,899 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:25:47,901 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:25:47,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:25:47,904 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:25:47,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 01:25:47,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:25:47,906 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:25:47,906 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:25:47,907 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-13 01:25:47,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 01:25:47,948 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:25:47,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:25:47,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:48,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:25:48,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:25:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:25:48,017 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 01:25:48,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:25:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:25:48,038 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-13 01:25:48,040 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:48,084 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 18 transitions. Complement of second has 5 states. [2021-10-13 01:25:48,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-13 01:25:48,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:25:48,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-13 01:25:48,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-13 01:25:48,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:25:48,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-13 01:25:48,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:25:48,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-13 01:25:48,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:25:48,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-13 01:25:48,095 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:25:48,098 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-13 01:25:48,100 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:25:48,100 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:25:48,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:25:48,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:25:48,101 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:25:48,101 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:25:48,101 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:25:48,101 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:25:48,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:25:48,102 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:25:48,102 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:25:48,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:25:48 BoogieIcfgContainer [2021-10-13 01:25:48,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:25:48,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:25:48,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:25:48,110 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:25:48,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:25:46" (3/4) ... [2021-10-13 01:25:48,115 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:25:48,115 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:25:48,117 INFO L168 Benchmark]: Toolchain (without parser) took 2747.65 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.2 MB in the beginning and 87.0 MB in the end (delta: -27.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:48,118 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 75.6 MB in the end (delta: 50.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:48,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.01 ms. Allocated memory is still 100.7 MB. Free memory was 59.0 MB in the beginning and 76.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:48,120 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:48,120 INFO L168 Benchmark]: Boogie Preprocessor took 27.29 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.6 MB in the end (delta: 836.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:48,121 INFO L168 Benchmark]: RCFGBuilder took 321.92 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 67.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:48,122 INFO L168 Benchmark]: BuchiAutomizer took 2057.31 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 87.5 MB in the end (delta: -20.5 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:25:48,123 INFO L168 Benchmark]: Witness Printer took 5.05 ms. Allocated memory is still 121.6 MB. Free memory was 87.5 MB in the beginning and 87.0 MB in the end (delta: 438.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:25:48,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 100.7 MB. Free memory was 75.6 MB in the beginning and 75.6 MB in the end (delta: 50.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 274.01 ms. Allocated memory is still 100.7 MB. Free memory was 59.0 MB in the beginning and 76.7 MB in the end (delta: -17.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.57 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.29 ms. Allocated memory is still 100.7 MB. Free memory was 75.4 MB in the beginning and 74.6 MB in the end (delta: 836.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 321.92 ms. Allocated memory is still 100.7 MB. Free memory was 74.3 MB in the beginning and 67.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2057.31 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 87.5 MB in the end (delta: -20.5 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.05 ms. Allocated memory is still 121.6 MB. Free memory was 87.5 MB in the beginning and 87.0 MB in the end (delta: 438.2 kB). 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 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 86ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:25:48,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-10-13 01:25:48,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8065e59b-f46e-4e4a-b8cb-73db66c4fde2/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...