./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF --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 7772925655f4060df2a7ae8273559e4b58ecce06a25204d1498fb382400e9970 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:13:13,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:13:13,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:13:13,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:13:13,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:13:13,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:13:13,395 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:13:13,397 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:13:13,399 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:13:13,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:13:13,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:13:13,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:13:13,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:13:13,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:13:13,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:13:13,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:13:13,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:13:13,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:13:13,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:13:13,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:13:13,417 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:13:13,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:13:13,420 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:13:13,421 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:13:13,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:13:13,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:13:13,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:13:13,427 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:13:13,428 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:13:13,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:13:13,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:13:13,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:13:13,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:13:13,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:13:13,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:13:13,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:13:13,435 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:13:13,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:13:13,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:13:13,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:13:13,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:13:13,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:13:13,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:13:13,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:13:13,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:13:13,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:13:13,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:13:13,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:13:13,492 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:13:13,492 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:13:13,492 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:13:13,492 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:13:13,493 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:13:13,494 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:13:13,494 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:13:13,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:13:13,494 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:13:13,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:13:13,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:13:13,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:13:13,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:13:13,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:13:13,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:13:13,496 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:13:13,496 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:13:13,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:13:13,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:13:13,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:13:13,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:13:13,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:13:13,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:13:13,501 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:13:13,501 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_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7772925655f4060df2a7ae8273559e4b58ecce06a25204d1498fb382400e9970 [2021-11-20 06:13:13,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:13:13,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:13:13,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:13:13,822 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:13:13,827 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:13:13,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-bwb/and-04-false.c [2021-11-20 06:13:13,913 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/data/59b3f9176/939de1eaca5942d19f535a1f9d1363e1/FLAG0c75f93e8 [2021-11-20 06:13:14,329 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:13:14,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/sv-benchmarks/c/termination-bwb/and-04-false.c [2021-11-20 06:13:14,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/data/59b3f9176/939de1eaca5942d19f535a1f9d1363e1/FLAG0c75f93e8 [2021-11-20 06:13:14,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/data/59b3f9176/939de1eaca5942d19f535a1f9d1363e1 [2021-11-20 06:13:14,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:13:14,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:13:14,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:13:14,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:13:14,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:13:14,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7683d8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14, skipping insertion in model container [2021-11-20 06:13:14,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:13:14,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:13:14,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:13:14,938 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:13:14,949 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:13:14,961 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:13:14,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14 WrapperNode [2021-11-20 06:13:14,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:13:14,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:13:14,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:13:14,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:13:14,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,987 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2021-11-20 06:13:14,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:13:14,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:13:14,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:13:14,988 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:13:14,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:14,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:15,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:15,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:15,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:13:15,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:13:15,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:13:15,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:13:15,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (1/1) ... [2021-11-20 06:13:15,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:15,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:15,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:13:15,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:13:15,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:13:15,129 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:13:15,130 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:13:15,193 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:13:15,199 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:13:15,199 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:13:15,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:15 BoogieIcfgContainer [2021-11-20 06:13:15,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:13:15,202 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:13:15,202 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:13:15,205 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:13:15,206 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:15,206 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:13:14" (1/3) ... [2021-11-20 06:13:15,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22106f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:13:15, skipping insertion in model container [2021-11-20 06:13:15,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:15,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:13:14" (2/3) ... [2021-11-20 06:13:15,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22106f05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:13:15, skipping insertion in model container [2021-11-20 06:13:15,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:13:15,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:15" (3/3) ... [2021-11-20 06:13:15,209 INFO L388 chiAutomizerObserver]: Analyzing ICFG and-04-false.c [2021-11-20 06:13:15,255 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:13:15,256 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:13:15,256 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:13:15,256 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:13:15,256 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:13:15,256 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:13:15,256 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:13:15,257 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:13:15,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:15,290 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:13:15,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:13:15,290 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:13:15,296 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:13:15,296 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:13:15,296 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:13:15,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:13:15,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:13:15,298 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:13:15,298 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:13:15,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 06:13:15,298 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:13:15,305 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L16-2true [2021-11-20 06:13:15,305 INFO L793 eck$LassoCheckResult]: Loop: 6#L16-2true assume !!(main_~x~0#1 < 8); 3#L16true assume !(0 == main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 6#L16-2true [2021-11-20 06:13:15,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:15,312 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 06:13:15,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:15,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387094058] [2021-11-20 06:13:15,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:15,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,386 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:15,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-11-20 06:13:15,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:15,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928359607] [2021-11-20 06:13:15,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:15,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,421 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,427 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:15,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:15,429 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-11-20 06:13:15,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:15,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298613794] [2021-11-20 06:13:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:15,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,436 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:13:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:13:15,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:13:15,530 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:13:15,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:13:15,531 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:13:15,531 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:13:15,532 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:13:15,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:13:15,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:13:15,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Loop [2021-11-20 06:13:15,533 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:13:15,533 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:13:15,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:15,651 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:13:15,652 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:13:15,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:15,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:15,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:13:15,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:15,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:13:15,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:15,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:15,749 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:15,758 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:13:15,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:15,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:13:15,802 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:13:15,803 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-6} Honda state: {ULTIMATE.start_main_~x~0#1=-6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 9, 5] Nus: [0, 0] [2021-11-20 06:13:15,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:15,842 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:13:15,842 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:13:15,842 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:13:15,843 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:13:15,843 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:13:15,843 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,843 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:13:15,843 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:13:15,843 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Lasso [2021-11-20 06:13:15,844 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:13:15,844 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:13:15,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:15,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:15,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:13:15,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:13:15,924 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:13:15,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:15,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:15,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:13:15,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:13:15,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:15,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:13:15,946 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:13:15,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-20 06:13:15,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:15,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:15,972 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:15,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:13:15,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:13:15,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:15,985 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:13:15,985 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:13:16,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:16,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:16,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:16,021 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:16,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:13:16,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:13:16,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:16,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:16,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:13:16,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:13:16,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:13:16,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:13:16,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:13:16,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:13:16,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:13:16,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-6} Honda state: {ULTIMATE.start_main_~x~0#1=-6} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [1, 9, 5] Nus: [0, 0] [2021-11-20 06:13:16,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:13:16,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:13:16 BoogieIcfgContainer [2021-11-20 06:13:16,166 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:13:16,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:13:16,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:13:16,167 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:13:16,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:13:15" (3/4) ... [2021-11-20 06:13:16,170 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 06:13:16,202 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:13:16,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:13:16,204 INFO L158 Benchmark]: Toolchain (without parser) took 1457.24ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 55.4MB in the beginning and 69.0MB in the end (delta: -13.5MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,205 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 92.3MB. Free memory is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:13:16,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.64ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 55.2MB in the beginning and 113.0MB in the end (delta: -57.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.88ms. Allocated memory is still 136.3MB. Free memory was 113.0MB in the beginning and 111.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:13:16,207 INFO L158 Benchmark]: Boogie Preprocessor took 15.57ms. Allocated memory is still 136.3MB. Free memory was 111.7MB in the beginning and 110.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,207 INFO L158 Benchmark]: RCFGBuilder took 196.90ms. Allocated memory is still 136.3MB. Free memory was 110.2MB in the beginning and 102.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,208 INFO L158 Benchmark]: BuchiAutomizer took 963.86ms. Allocated memory is still 136.3MB. Free memory was 102.5MB in the beginning and 70.9MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,208 INFO L158 Benchmark]: Witness Printer took 36.06ms. Allocated memory is still 136.3MB. Free memory was 70.2MB in the beginning and 69.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:13:16,212 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 is still 71.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.64ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 55.2MB in the beginning and 113.0MB in the end (delta: -57.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.88ms. Allocated memory is still 136.3MB. Free memory was 113.0MB in the beginning and 111.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.57ms. Allocated memory is still 136.3MB. Free memory was 111.7MB in the beginning and 110.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 196.90ms. Allocated memory is still 136.3MB. Free memory was 110.2MB in the beginning and 102.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 963.86ms. Allocated memory is still 136.3MB. Free memory was 102.5MB in the beginning and 70.9MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 36.06ms. Allocated memory is still 136.3MB. Free memory was 70.2MB in the beginning and 69.0MB in the end (delta: 1.3MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6db7912b=0, \result=0} State at position 1 is {x=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6db7912b=0, \result=0} For i>1, the state at position i is {x=-6 + sum_{k=0}^i -1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6db7912b=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [1, 9, 5] Mus: [0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] x = __VERIFIER_nondet_int() Loop: [L15] COND TRUE x < 8 [L16] COND FALSE !(x == 0) [L20] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 06:13:16,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6826e625-1d9c-45b2-8004-22a61104cd17/bin/uautomizer-DQz5hQGWxF/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)