./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3 --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 9c3e090d52ebca0d111383f72b5851cb29661ded ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:56:33,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:56:33,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:56:33,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:56:33,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:56:33,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:56:33,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:56:33,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:56:33,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:56:34,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:56:34,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:56:34,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:56:34,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:56:34,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:56:34,014 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:56:34,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:56:34,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:56:34,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:56:34,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:56:34,033 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:56:34,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:56:34,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:56:34,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:56:34,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:56:34,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:56:34,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:56:34,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:56:34,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:56:34,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:56:34,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:56:34,060 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:56:34,061 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:56:34,064 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:56:34,065 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:56:34,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:56:34,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:56:34,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:56:34,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:56:34,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:56:34,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:56:34,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:56:34,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-15 19:56:34,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:56:34,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:56:34,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:56:34,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:56:34,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:56:34,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:56:34,128 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:56:34,129 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:56:34,129 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:56:34,129 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:56:34,130 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:56:34,131 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:56:34,131 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:56:34,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:56:34,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:56:34,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:56:34,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:56:34,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:56:34,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:56:34,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:56:34,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:56:34,133 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:56:34,134 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:56:34,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:56:34,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:56:34,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:56:34,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:56:34,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:56:34,135 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:56:34,136 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:56:34,137 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_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c3e090d52ebca0d111383f72b5851cb29661ded [2021-10-15 19:56:34,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:56:34,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:56:34,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:56:34,536 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:56:34,537 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:56:34,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/termination-restricted-15/NO_02.c [2021-10-15 19:56:34,623 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/data/04113ed3a/5984d2c67e9c4995b7e5e8e94b7e16ba/FLAG5ab50bddc [2021-10-15 19:56:35,093 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:56:35,093 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/sv-benchmarks/c/termination-restricted-15/NO_02.c [2021-10-15 19:56:35,102 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/data/04113ed3a/5984d2c67e9c4995b7e5e8e94b7e16ba/FLAG5ab50bddc [2021-10-15 19:56:35,474 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/data/04113ed3a/5984d2c67e9c4995b7e5e8e94b7e16ba [2021-10-15 19:56:35,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:56:35,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:56:35,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:56:35,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:56:35,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:56:35,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c76eed5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35, skipping insertion in model container [2021-10-15 19:56:35,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:56:35,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:56:35,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:56:35,748 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:56:35,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:56:35,793 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:56:35,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35 WrapperNode [2021-10-15 19:56:35,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:56:35,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:56:35,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:56:35,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:56:35,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:56:35,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:56:35,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:56:35,832 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:56:35,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:56:35,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:56:35,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:56:35,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:56:35,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (1/1) ... [2021-10-15 19:56:35,867 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:56:35,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:56:35,900 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:56:35,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:56:35,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:56:35,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:56:36,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:56:36,148 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-15 19:56:36,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:36 BoogieIcfgContainer [2021-10-15 19:56:36,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:56:36,154 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:56:36,154 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:56:36,158 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:56:36,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:36,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:56:35" (1/3) ... [2021-10-15 19:56:36,162 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6af90c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:56:36, skipping insertion in model container [2021-10-15 19:56:36,162 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:36,162 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:56:35" (2/3) ... [2021-10-15 19:56:36,164 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6af90c72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:56:36, skipping insertion in model container [2021-10-15 19:56:36,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:56:36,164 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:36" (3/3) ... [2021-10-15 19:56:36,167 INFO L389 chiAutomizerObserver]: Analyzing ICFG NO_02.c [2021-10-15 19:56:36,239 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:56:36,240 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:56:36,240 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:56:36,240 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:56:36,240 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:56:36,241 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:56:36,241 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:56:36,241 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:56:36,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:36,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:56:36,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:36,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:36,285 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 19:56:36,286 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:56:36,286 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:56:36,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:56:36,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-15 19:56:36,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:36,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:36,289 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-15 19:56:36,289 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-15 19:56:36,297 INFO L791 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 5#L10-2true [2021-10-15 19:56:36,297 INFO L793 eck$LassoCheckResult]: Loop: 5#L10-2true assume !!(main_~i~0 < 100);main_~j~0 := 0; 3#L12-2true assume !(main_~j~0 < 1); 8#L12-3true main_~i~0 := 1 + main_~i~0; 5#L10-2true [2021-10-15 19:56:36,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:36,306 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-15 19:56:36,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:36,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822044718] [2021-10-15 19:56:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:36,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,408 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:36,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:36,443 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2021-10-15 19:56:36,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:36,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228461074] [2021-10-15 19:56:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:36,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:56:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:56:36,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:56:36,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228461074] [2021-10-15 19:56:36,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228461074] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:56:36,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:56:36,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-15 19:56:36,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818141955] [2021-10-15 19:56:36,556 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:56:36,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:56:36,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:56:36,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:56:36,588 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.0) 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) [2021-10-15 19:56:36,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:56:36,616 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2021-10-15 19:56:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:56:36,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2021-10-15 19:56:36,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 19:56:36,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 3 states and 3 transitions. [2021-10-15 19:56:36,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2021-10-15 19:56:36,640 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2021-10-15 19:56:36,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2021-10-15 19:56:36,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:56:36,641 INFO L681 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-10-15 19:56:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2021-10-15 19:56:36,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2021-10-15 19:56:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) 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) [2021-10-15 19:56:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2021-10-15 19:56:36,690 INFO L704 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-10-15 19:56:36,690 INFO L587 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2021-10-15 19:56:36,691 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:56:36,691 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2021-10-15 19:56:36,692 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-15 19:56:36,692 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:56:36,692 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:56:36,693 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-15 19:56:36,708 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-15 19:56:36,709 INFO L791 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 25#L10-2 assume !!(main_~i~0 < 100);main_~j~0 := 0; 24#L12-2 [2021-10-15 19:56:36,709 INFO L793 eck$LassoCheckResult]: Loop: 24#L12-2 assume !!(main_~j~0 < 1);main_~j~0 := main_~j~0; 24#L12-2 [2021-10-15 19:56:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:36,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-15 19:56:36,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:36,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852956637] [2021-10-15 19:56:36,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:36,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,716 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,721 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:36,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:36,722 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2021-10-15 19:56:36,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:36,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202952039] [2021-10-15 19:56:36,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:36,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:36,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,740 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,745 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:36,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:56:36,746 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2021-10-15 19:56:36,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:56:36,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919692571] [2021-10-15 19:56:36,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:56:36,761 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:56:36,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,769 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:56:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:56:36,775 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:56:36,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:56:36 BoogieIcfgContainer [2021-10-15 19:56:36,887 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:56:36,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:56:36,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:56:36,890 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:56:36,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:56:36" (3/4) ... [2021-10-15 19:56:36,900 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:56:36,952 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:56:36,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:56:36,955 INFO L168 Benchmark]: Toolchain (without parser) took 1474.84 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.9 MB in the beginning and 88.0 MB in the end (delta: -31.1 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,956 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:56:36,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.57 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 70.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.08 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 69.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:56:36,963 INFO L168 Benchmark]: Boogie Preprocessor took 22.46 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.1 MB in the end (delta: 972.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,964 INFO L168 Benchmark]: RCFGBuilder took 297.77 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 60.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,964 INFO L168 Benchmark]: BuchiAutomizer took 734.47 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 37.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,965 INFO L168 Benchmark]: Witness Printer took 63.74 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 37.2 MB in the beginning and 88.0 MB in the end (delta: -50.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:56:36,972 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 92.3 MB. Free memory was 72.8 MB in the beginning and 72.7 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.57 ms. Allocated memory is still 92.3 MB. Free memory was 56.7 MB in the beginning and 70.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.08 ms. Allocated memory is still 92.3 MB. Free memory was 70.2 MB in the beginning and 69.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.46 ms. Allocated memory is still 92.3 MB. Free memory was 69.1 MB in the beginning and 68.1 MB in the end (delta: 972.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 297.77 ms. Allocated memory is still 92.3 MB. Free memory was 68.1 MB in the beginning and 60.6 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 734.47 ms. Allocated memory is still 92.3 MB. Free memory was 60.3 MB in the beginning and 37.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 63.74 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 37.2 MB in the beginning and 88.0 MB in the end (delta: -50.8 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 33.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 3 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 12]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=0, j=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 [L10] COND TRUE i < 100 [L11] j = 0 Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:56:37,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e03c5e1-faed-49ad-baf9-8ac95aed49b7/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...