./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL --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 c8ad5919f2c7d8d20fdeb64562e90991d5514131c2ca388368b0a2f7daf1fa4e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:48:44,620 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:48:44,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:48:44,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:48:44,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:48:44,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:48:44,674 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:48:44,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:48:44,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:48:44,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:48:44,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:48:44,686 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:48:44,686 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:48:44,688 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:48:44,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:48:44,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:48:44,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:48:44,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:48:44,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:48:44,703 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:48:44,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:48:44,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:48:44,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:48:44,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:48:44,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:48:44,719 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:48:44,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:48:44,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:48:44,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:48:44,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:48:44,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:48:44,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:48:44,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:48:44,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:48:44,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:48:44,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:48:44,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:48:44,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:48:44,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:48:44,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:48:44,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:48:44,743 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:48:44,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:48:44,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:48:44,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:48:44,809 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:48:44,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:48:44,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:48:44,811 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:48:44,812 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:48:44,812 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:48:44,812 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:48:44,814 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:48:44,814 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:48:44,814 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:48:44,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:48:44,815 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:48:44,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:48:44,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:48:44,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:48:44,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:48:44,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:48:44,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:48:44,817 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:48:44,817 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:48:44,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:48:44,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:48:44,818 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:48:44,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:48:44,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:48:44,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:48:44,835 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:48:44,836 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_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8ad5919f2c7d8d20fdeb64562e90991d5514131c2ca388368b0a2f7daf1fa4e [2021-11-19 04:48:45,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:48:45,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:48:45,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:48:45,244 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:48:45,245 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:48:45,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-restricted-15/b.17.c [2021-11-19 04:48:45,340 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/data/07fe50636/763b4da8196c4e8dbe18e098423817d8/FLAG6d4dd2594 [2021-11-19 04:48:45,923 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:48:45,923 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/sv-benchmarks/c/termination-restricted-15/b.17.c [2021-11-19 04:48:45,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/data/07fe50636/763b4da8196c4e8dbe18e098423817d8/FLAG6d4dd2594 [2021-11-19 04:48:46,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/data/07fe50636/763b4da8196c4e8dbe18e098423817d8 [2021-11-19 04:48:46,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:48:46,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:48:46,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:48:46,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:48:46,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:48:46,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795b2a24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46, skipping insertion in model container [2021-11-19 04:48:46,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:48:46,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:48:46,548 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:48:46,554 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:48:46,572 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:48:46,589 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:48:46,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46 WrapperNode [2021-11-19 04:48:46,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:48:46,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:48:46,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:48:46,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:48:46,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,610 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,636 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2021-11-19 04:48:46,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:48:46,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:48:46,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:48:46,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:48:46,652 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,681 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:48:46,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:48:46,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:48:46,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:48:46,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (1/1) ... [2021-11-19 04:48:46,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:46,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:46,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:48:46,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:48:46,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:48:46,906 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:48:46,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:48:47,029 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:48:47,040 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:48:47,041 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:48:47,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:47 BoogieIcfgContainer [2021-11-19 04:48:47,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:48:47,048 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:48:47,048 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:48:47,053 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:48:47,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:48:47,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:48:46" (1/3) ... [2021-11-19 04:48:47,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f3a2af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:48:47, skipping insertion in model container [2021-11-19 04:48:47,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:48:47,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:48:46" (2/3) ... [2021-11-19 04:48:47,059 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71f3a2af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:48:47, skipping insertion in model container [2021-11-19 04:48:47,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:48:47,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:47" (3/3) ... [2021-11-19 04:48:47,062 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.17.c [2021-11-19 04:48:47,131 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:48:47,132 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:48:47,132 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:48:47,132 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:48:47,132 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:48:47,132 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:48:47,133 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:48:47,133 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:48:47,163 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-19 04:48:47,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:48:47,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:48:47,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:48:47,219 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:48:47,219 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:48:47,220 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:48:47,220 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-11-19 04:48:47,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-19 04:48:47,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:48:47,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:48:47,223 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:48:47,223 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-19 04:48:47,233 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 3#L12-2true [2021-11-19 04:48:47,233 INFO L793 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0#1 > main_~z~0#1); 8#L13-2true assume !(main_~y~0#1 > main_~z~0#1); 9#L13-3true main_~x~0#1 := main_~x~0#1 - 1; 3#L12-2true [2021-11-19 04:48:47,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:47,242 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:48:47,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:47,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157793831] [2021-11-19 04:48:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:47,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,346 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:47,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:47,375 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-11-19 04:48:47,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:47,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241484021] [2021-11-19 04:48:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:47,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,392 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:47,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:47,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:47,403 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2021-11-19 04:48:47,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:47,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751048137] [2021-11-19 04:48:47,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:47,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,414 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:47,424 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:47,532 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:48:47,533 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:48:47,533 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:48:47,533 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:48:47,533 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:48:47,534 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:47,534 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:48:47,534 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:48:47,534 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2021-11-19 04:48:47,535 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:48:47,535 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:48:47,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:47,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:47,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:47,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:48:47,705 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:48:47,708 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:47,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:47,711 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:47,731 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:48:47,731 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:47,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:48:47,764 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:48:47,764 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:48:47,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:47,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:47,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:47,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:47,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:48:47,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:47,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:48:47,850 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:48:47,850 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:48:47,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:47,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:47,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:47,880 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:47,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:48:47,908 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:47,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:48:47,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-19 04:48:47,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:47,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:47,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:47,988 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:48:47,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:47,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:48:48,377 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:48:48,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:48,384 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:48:48,384 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:48:48,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:48:48,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:48:48,385 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:48:48,385 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:48,385 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:48:48,385 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:48:48,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2021-11-19 04:48:48,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:48:48,386 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:48:48,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:48,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:48,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:48,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:48:48,485 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:48:48,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:48,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:48,498 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:48,504 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 [2021-11-19 04:48:48,517 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:48:48,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:48:48,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:48:48,519 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:48:48,519 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:48:48,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:48:48,532 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:48:48,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:48:48,551 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:48:48,561 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-19 04:48:48,561 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:48:48,563 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:48,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:48,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:48,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:48:48,599 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:48:48,600 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:48:48,600 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:48:48,601 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2021-11-19 04:48:48,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:48,637 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:48:48,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:48,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:48:48,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:48,751 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:48:48,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:48,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:48,877 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-19 04:48:48,879 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:48,942 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 36 transitions. Complement of second has 7 states. [2021-11-19 04:48:48,944 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 [2021-11-19 04:48:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-11-19 04:48:48,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-19 04:48:48,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:48,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-19 04:48:48,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:48,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-19 04:48:48,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:48,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-11-19 04:48:48,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:48:48,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-19 04:48:48,968 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-19 04:48:48,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-19 04:48:48,970 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-19 04:48:48,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-19 04:48:48,970 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-19 04:48:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-19 04:48:49,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-19 04:48:49,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:48:49,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-11-19 04:48:49,005 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-19 04:48:49,006 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-19 04:48:49,006 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:48:49,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-11-19 04:48:49,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:48:49,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:48:49,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:48:49,008 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-19 04:48:49,008 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:48:49,008 INFO L791 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 80#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 75#L12-2 assume !!(main_~x~0#1 > main_~z~0#1); 77#L13-2 [2021-11-19 04:48:49,009 INFO L793 eck$LassoCheckResult]: Loop: 77#L13-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~y~0#1 := main_~y~0#1 - 1; 77#L13-2 [2021-11-19 04:48:49,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:49,010 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-19 04:48:49,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:49,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269367119] [2021-11-19 04:48:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:49,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:49,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,018 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,024 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:49,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-19 04:48:49,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:49,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239247005] [2021-11-19 04:48:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:49,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,032 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,037 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-11-19 04:48:49,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:48:49,039 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082646567] [2021-11-19 04:48:49,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:48:49,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:48:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,047 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:48:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:48:49,054 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:48:49,075 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:48:49,075 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:48:49,075 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:48:49,075 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:48:49,075 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:48:49,076 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,076 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:48:49,076 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:48:49,076 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2021-11-19 04:48:49,076 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:48:49,077 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:48:49,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,158 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:48:49,159 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:48:49,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:48:49,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:49,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:48:49,200 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:48:49,201 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:48:49,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:49,240 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,243 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:48:49,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:48:49,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:49,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-19 04:48:49,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,292 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:48:49,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:48:49,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:48:49,550 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:48:49,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:49,554 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:48:49,554 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:48:49,554 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:48:49,554 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:48:49,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:48:49,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:48:49,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:48:49,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2021-11-19 04:48:49,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:48:49,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:48:49,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:48:49,665 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:48:49,665 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:48:49,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,672 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,685 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 [2021-11-19 04:48:49,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:48:49,698 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:48:49,698 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:48:49,698 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:48:49,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:48:49,716 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:48:49,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:48:49,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:48:49,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:49,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,783 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:49,849 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 [2021-11-19 04:48:49,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:48:49,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:48:49,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:48:49,862 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:48:49,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:48:49,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:48:49,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:48:49,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:48:49,883 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:48:49,890 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-19 04:48:49,891 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-19 04:48:49,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:48:49,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:48:49,893 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:48:49,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:48:49,902 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:48:49,902 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:48:49,902 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2021-11-19 04:48:49,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-19 04:48:49,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:49,948 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:48:49,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:48:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:49,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:48:49,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:49,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:48:49,993 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:48:49,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:48:49,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:48:49,995 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 [2021-11-19 04:48:49,996 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-11-19 04:48:50,015 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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 14 states and 19 transitions. Complement of second has 4 states. [2021-11-19 04:48:50,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:48:50,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-11-19 04:48:50,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-19 04:48:50,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-19 04:48:50,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:50,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-19 04:48:50,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:50,019 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-19 04:48:50,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:48:50,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-11-19 04:48:50,023 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:48:50,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-19 04:48:50,023 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:48:50,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:48:50,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:48:50,023 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:48:50,024 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:48:50,024 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:48:50,024 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:48:50,024 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-19 04:48:50,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:48:50,024 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:48:50,024 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:48:50,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:48:50 BoogieIcfgContainer [2021-11-19 04:48:50,043 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:48:50,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:48:50,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:48:50,044 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:48:50,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:48:47" (3/4) ... [2021-11-19 04:48:50,049 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:48:50,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:48:50,051 INFO L158 Benchmark]: Toolchain (without parser) took 3709.31ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 78.0MB in the beginning and 114.0MB in the end (delta: -36.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-19 04:48:50,052 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:48:50,053 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.96ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 69.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:48:50,054 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.17ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 68.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:48:50,057 INFO L158 Benchmark]: Boogie Preprocessor took 44.87ms. Allocated memory is still 109.1MB. Free memory was 68.0MB in the beginning and 67.2MB in the end (delta: 856.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:48:50,061 INFO L158 Benchmark]: RCFGBuilder took 358.58ms. Allocated memory is still 109.1MB. Free memory was 67.0MB in the beginning and 59.3MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:48:50,062 INFO L158 Benchmark]: BuchiAutomizer took 2994.84ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 59.2MB in the beginning and 114.0MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:48:50,063 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 146.8MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:48:50,075 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 109.1MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.96ms. Allocated memory is still 109.1MB. Free memory was 77.8MB in the beginning and 69.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.17ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 68.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.87ms. Allocated memory is still 109.1MB. Free memory was 68.0MB in the beginning and 67.2MB in the end (delta: 856.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.58ms. Allocated memory is still 109.1MB. Free memory was 67.0MB in the beginning and 59.3MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2994.84ms. Allocated memory was 109.1MB in the beginning and 146.8MB in the end (delta: 37.7MB). Free memory was 59.2MB in the beginning and 114.0MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 146.8MB. Free memory is still 114.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 5 locations. One deterministic module has affine ranking function -1 * z + y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 69ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:48:50,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-19 04:48:50,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acc8bef9-ee38-44f5-924e-a74dd482ef79/bin/uautomizer-ZXIjhQolGL/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