./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Waldkirch.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_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/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_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Waldkirch.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/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_9f0d3061-b79e-433d-bd09-cb1620bab3ff/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 0d07943f594c0a86ad3f09c064026eaa390bfc50048ddd9265cfeaf428144657 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:54:44,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:54:44,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:54:44,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:54:44,818 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:54:44,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:54:44,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:54:44,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:54:44,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:54:44,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:54:44,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:54:44,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:54:44,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:54:44,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:54:44,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:54:44,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:54:44,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:54:44,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:54:44,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:54:44,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:54:44,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:54:44,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:54:44,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:54:44,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:54:44,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:54:44,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:54:44,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:54:44,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:54:44,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:54:44,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:54:44,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:54:44,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:54:44,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:54:44,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:54:44,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:54:44,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:54:44,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:54:44,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:54:44,890 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:54:44,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:54:44,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:54:44,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:54:44,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:54:44,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:54:44,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:54:44,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:54:44,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:54:44,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:54:44,963 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:54:44,963 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:54:44,963 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:54:44,963 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:54:44,963 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:54:44,964 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:54:44,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:54:44,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:54:44,964 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:54:44,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:54:44,966 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:54:44,966 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:54:44,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:54:44,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:54:44,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:54:44,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:54:44,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:54:44,967 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:54:44,969 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:54:44,969 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_9f0d3061-b79e-433d-bd09-cb1620bab3ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d07943f594c0a86ad3f09c064026eaa390bfc50048ddd9265cfeaf428144657 [2021-11-19 04:54:45,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:54:45,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:54:45,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:54:45,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:54:45,301 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:54:45,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted/Waldkirch.c [2021-11-19 04:54:45,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/data/730ebb563/41f0762cd41a4205b364604a2ec55012/FLAGdb241004a [2021-11-19 04:54:45,821 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:54:45,821 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/sv-benchmarks/c/termination-crafted/Waldkirch.c [2021-11-19 04:54:45,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/data/730ebb563/41f0762cd41a4205b364604a2ec55012/FLAGdb241004a [2021-11-19 04:54:46,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/data/730ebb563/41f0762cd41a4205b364604a2ec55012 [2021-11-19 04:54:46,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:54:46,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:54:46,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:54:46,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:54:46,241 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:54:46,242 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f60d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46, skipping insertion in model container [2021-11-19 04:54:46,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:54:46,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:54:46,465 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:54:46,470 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:54:46,487 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:54:46,502 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:54:46,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46 WrapperNode [2021-11-19 04:54:46,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:54:46,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:54:46,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:54:46,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:54:46,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,553 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2021-11-19 04:54:46,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:54:46,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:54:46,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:54:46,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:54:46,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,574 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:54:46,584 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:54:46,585 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:54:46,585 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:54:46,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (1/1) ... [2021-11-19 04:54:46,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:46,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:46,634 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:46,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:54:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:54:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:54:46,767 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:54:46,770 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:54:46,845 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:54:46,858 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:54:46,859 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:54:46,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:46 BoogieIcfgContainer [2021-11-19 04:54:46,862 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:54:46,863 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:54:46,864 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:54:46,868 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:54:46,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:54:46,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:54:46" (1/3) ... [2021-11-19 04:54:46,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@87e66cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:54:46, skipping insertion in model container [2021-11-19 04:54:46,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:54:46,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:46" (2/3) ... [2021-11-19 04:54:46,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@87e66cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:54:46, skipping insertion in model container [2021-11-19 04:54:46,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:54:46,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:46" (3/3) ... [2021-11-19 04:54:46,877 INFO L388 chiAutomizerObserver]: Analyzing ICFG Waldkirch.c [2021-11-19 04:54:46,946 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:54:46,946 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:54:46,947 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:54:46,947 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:54:46,947 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:54:46,947 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:54:46,947 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:54:46,947 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:54:46,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:54:46,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:54:46,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:54:46,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:54:47,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:54:47,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:54:47,002 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:54:47,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:54:47,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:54:47,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:54:47,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:54:47,005 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:54:47,006 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:54:47,014 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L14-2true [2021-11-19 04:54:47,014 INFO L793 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1; 7#L14-2true [2021-11-19 04:54:47,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:54:47,021 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:54:47,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:54:47,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063311964] [2021-11-19 04:54:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:54:47,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:54:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,113 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:54:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,134 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:54:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:54:47,139 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-19 04:54:47,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:54:47,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431340383] [2021-11-19 04:54:47,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:54:47,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:54:47,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,166 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:54:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,185 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:54:47,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:54:47,191 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-19 04:54:47,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:54:47,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337386696] [2021-11-19 04:54:47,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:54:47,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:54:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,201 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:54:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:54:47,212 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:54:47,312 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:54:47,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:54:47,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:54:47,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:54:47,327 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:54:47,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,327 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:54:47,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:54:47,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2021-11-19 04:54:47,328 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:54:47,328 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:54:47,365 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 04:54:47,389 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 04:54:47,403 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 04:54:47,504 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:54:47,505 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:54:47,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:47,518 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:47,524 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:54:47,524 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:54:47,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:54:47,555 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:54:47,555 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 04:54:47,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:47,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:47,599 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:47,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:54:47,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:54:47,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:54:47,651 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:54:47,651 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 04:54:47,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:47,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:47,692 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:47,698 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:54:47,698 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:54:47,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:54:47,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:47,764 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:47,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:47,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:54:47,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:54:47,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:54:47,842 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:54:47,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:47,850 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:54:47,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:54:47,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:54:47,851 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:54:47,851 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:54:47,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:54:47,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:54:47,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2021-11-19 04:54:47,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:54:47,852 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:54:47,854 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 04:54:47,859 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 04:54:47,867 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 04:54:47,907 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:54:47,912 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:54:47,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:47,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:47,914 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:47,923 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 04:54:47,935 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:54:47,935 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:54:47,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:54:47,936 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:54:47,943 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:54:47,943 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:54:47,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:54:47,990 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:54:48,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:48,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:48,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:48,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:48,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:54:48,035 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 04:54:48,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:54:48,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:54:48,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:54:48,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:54:48,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:54:48,047 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:54:48,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:54:48,069 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:54:48,079 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:54:48,080 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-19 04:54:48,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:54:48,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:54:48,085 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:54:48,091 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:54:48,091 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:54:48,092 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:54:48,092 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-11-19 04:54:48,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:54:48,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:48,141 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:54:48,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:54:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:54:48,196 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:54:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:54:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:54:48,210 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 04:54:48,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:54:48,211 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 04:54:48,255 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 04:54:48,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:54:48,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:54:48,311 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2021-11-19 04:54:48,313 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 [2021-11-19 04:54:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:54:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-11-19 04:54:48,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-19 04:54:48,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:54:48,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-19 04:54:48,321 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:54:48,321 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-19 04:54:48,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:54:48,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-11-19 04:54:48,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:54:48,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-11-19 04:54:48,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:54:48,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:54:48,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:54:48,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:54:48,330 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:54:48,330 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:54:48,330 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:54:48,330 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:54:48,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:54:48,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:54:48,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:54:48,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:54:48 BoogieIcfgContainer [2021-11-19 04:54:48,338 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:54:48,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:54:48,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:54:48,339 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:54:48,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:46" (3/4) ... [2021-11-19 04:54:48,342 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:54:48,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:54:48,344 INFO L158 Benchmark]: Toolchain (without parser) took 2111.97ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 58.1MB in the beginning and 83.7MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:54:48,344 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:54:48,345 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.63ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 58.0MB in the beginning and 88.4MB in the end (delta: -30.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:54:48,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:54:48,346 INFO L158 Benchmark]: Boogie Preprocessor took 27.35ms. Allocated memory is still 111.1MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:54:48,347 INFO L158 Benchmark]: RCFGBuilder took 277.64ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 78.5MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:54:48,348 INFO L158 Benchmark]: BuchiAutomizer took 1474.92ms. Allocated memory is still 111.1MB. Free memory was 78.5MB in the beginning and 84.3MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:54:48,348 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 83.7MB in the end (delta: 601.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:54:48,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory was 62.2MB in the beginning and 62.1MB in the end (delta: 30.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.63ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 58.0MB in the beginning and 88.4MB in the end (delta: -30.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 111.1MB. Free memory was 88.4MB in the beginning and 87.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.35ms. Allocated memory is still 111.1MB. Free memory was 87.3MB in the beginning and 86.3MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.64ms. Allocated memory is still 111.1MB. Free memory was 86.3MB in the beginning and 78.5MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1474.92ms. Allocated memory is still 111.1MB. Free memory was 78.5MB in the beginning and 84.3MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 111.1MB. Free memory was 84.3MB in the beginning and 83.7MB in the end (delta: 601.8kB). Peak memory consumption was 2.1MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 77ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:54:48,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f0d3061-b79e-433d-bd09-cb1620bab3ff/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