./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d1222cbe619907da17220c6769d95d8d6fd1064c .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:16:24,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:16:24,132 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:16:24,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:16:24,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:16:24,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:16:24,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:16:24,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:16:24,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:16:24,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:16:24,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:16:24,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:16:24,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:16:24,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:16:24,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:16:24,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:16:24,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:16:24,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:16:24,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:16:24,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:16:24,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:16:24,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:16:24,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:16:24,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:16:24,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:16:24,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:16:24,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:16:24,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:16:24,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:16:24,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:16:24,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:16:24,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:16:24,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:16:24,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:16:24,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:16:24,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:16:24,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:16:24,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:16:24,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:16:24,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:16:24,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:16:24,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 01:16:24,282 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:16:24,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:16:24,286 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:16:24,286 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:16:24,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:16:24,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:16:24,288 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:16:24,288 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:16:24,289 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:16:24,289 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:16:24,290 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:16:24,290 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:16:24,290 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:16:24,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:16:24,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:16:24,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:16:24,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:16:24,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:16:24,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:16:24,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:16:24,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:16:24,292 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:16:24,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:16:24,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:16:24,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:16:24,293 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:16:24,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:16:24,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:16:24,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:16:24,296 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:16:24,297 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_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1222cbe619907da17220c6769d95d8d6fd1064c [2021-10-13 01:16:24,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:16:24,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:16:24,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:16:24,675 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:16:24,675 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:16:24,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-10-13 01:16:24,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/data/107c26d5f/83a56dc6bece4cc58f293c4c0f8c65e9/FLAG49f467b23 [2021-10-13 01:16:25,276 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:16:25,278 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-10-13 01:16:25,290 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/data/107c26d5f/83a56dc6bece4cc58f293c4c0f8c65e9/FLAG49f467b23 [2021-10-13 01:16:25,647 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/data/107c26d5f/83a56dc6bece4cc58f293c4c0f8c65e9 [2021-10-13 01:16:25,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:16:25,656 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:16:25,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:16:25,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:16:25,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:16:25,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366c69cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25, skipping insertion in model container [2021-10-13 01:16:25,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:16:25,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:16:25,864 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:16:25,880 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:16:25,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:16:25,916 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:16:25,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25 WrapperNode [2021-10-13 01:16:25,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:16:25,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:16:25,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:16:25,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:16:25,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,954 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:16:25,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:16:25,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:16:25,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:16:25,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,966 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:16:25,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:16:25,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:16:25,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:16:25,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (1/1) ... [2021-10-13 01:16:25,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:26,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:26,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:16:26,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:16:26,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:16:26,219 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:16:26,219 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-13 01:16:26,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:26 BoogieIcfgContainer [2021-10-13 01:16:26,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:16:26,226 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:16:26,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:16:26,231 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:16:26,232 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:26,232 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:16:25" (1/3) ... [2021-10-13 01:16:26,234 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69561d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:16:26, skipping insertion in model container [2021-10-13 01:16:26,234 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:26,234 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:16:25" (2/3) ... [2021-10-13 01:16:26,235 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69561d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:16:26, skipping insertion in model container [2021-10-13 01:16:26,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:16:26,235 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:26" (3/3) ... [2021-10-13 01:16:26,237 INFO L389 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-10-13 01:16:26,297 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:16:26,297 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:16:26,298 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:16:26,298 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:16:26,298 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:16:26,298 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:16:26,298 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:16:26,299 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:16:26,313 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) [2021-10-13 01:16:26,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:16:26,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:16:26,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:16:26,338 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:16:26,338 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:16:26,338 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:16:26,339 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) [2021-10-13 01:16:26,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-13 01:16:26,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:16:26,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:16:26,341 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-13 01:16:26,341 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-13 01:16:26,347 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue ~x~0 := 0; 7#L-1true havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2;~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L14-1true [2021-10-13 01:16:26,348 INFO L793 eck$LassoCheckResult]: Loop: 9#L14-1true assume !!(~x~0 > 0); 5#L23true assume !(0 != main_#t~nondet2);havoc main_#t~nondet2;havoc foo_#t~post0;foo_#t~post0 := ~x~0;~x~0 := foo_#t~post0 - 1;havoc foo_#t~post0; 9#L14-1true [2021-10-13 01:16:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:26,354 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-13 01:16:26,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:26,366 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296465269] [2021-10-13 01:16:26,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:26,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,446 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,472 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2021-10-13 01:16:26,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:26,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462596567] [2021-10-13 01:16:26,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:26,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,493 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,510 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:26,513 INFO L82 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2021-10-13 01:16:26,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:16:26,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23416255] [2021-10-13 01:16:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:16:26,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:16:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,530 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:16:26,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:16:26,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:16:26,648 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:16:26,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:16:26,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:16:26,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:16:26,662 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 01:16:26,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:16:26,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:16:26,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-10-13 01:16:26,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:16:26,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:16:26,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:26,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:26,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:26,734 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:16:26,735 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 01:16:26,737 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:26,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:26,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:16:26,775 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:16:26,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 01:16:26,797 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 01:16:26,797 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0=0} Honda state: {ULTIMATE.start_foo_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 01:16:26,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:26,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:26,836 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:26,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 01:16:26,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:16:26,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 01:16:26,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:26,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:26,905 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:26,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 01:16:26,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 01:16:26,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 01:16:26,977 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 01:16:26,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:26,984 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 01:16:26,984 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 01:16:26,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 01:16:26,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 01:16:26,985 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 01:16:26,985 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:26,985 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 01:16:26,985 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 01:16:26,985 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-10-13 01:16:26,985 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 01:16:26,985 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 01:16:26,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:26,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:26,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 01:16:27,036 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 01:16:27,040 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 01:16:27,043 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:27,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:27,045 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:27,050 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:16:27,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:16:27,060 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:16:27,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:16:27,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:16:27,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:16:27,065 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:16:27,065 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:16:27,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 01:16:27,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 01:16:27,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:27,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:27,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:27,125 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:27,131 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 01:16:27,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 01:16:27,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 01:16:27,141 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 01:16:27,141 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 01:16:27,141 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 01:16:27,141 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 01:16:27,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 01:16:27,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 01:16:27,159 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 01:16:27,175 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 01:16:27,175 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 01:16:27,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:16:27,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:16:27,179 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:16:27,210 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 01:16:27,210 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 01:16:27,210 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 01:16:27,211 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-10-13 01:16:27,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 01:16:27,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:27,255 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 01:16:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:16:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:16:27,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 01:16:27,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:16:27,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:16:27,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 01:16:27,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 01:16:27,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 01:16:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:16:27,379 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-13 01:16:27,380 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:16:27,415 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 23 transitions. Complement of second has 7 states. [2021-10-13 01:16:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 01:16:27,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:16:27,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-13 01:16:27,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-13 01:16:27,420 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:16:27,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-13 01:16:27,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:16:27,421 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-13 01:16:27,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 01:16:27,422 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2021-10-13 01:16:27,425 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:16:27,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-10-13 01:16:27,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 01:16:27,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 01:16:27,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 01:16:27,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:16:27,429 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:16:27,430 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:16:27,430 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 01:16:27,430 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:16:27,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 01:16:27,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 01:16:27,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 01:16:27,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:16:27 BoogieIcfgContainer [2021-10-13 01:16:27,436 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:16:27,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:16:27,437 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:16:27,437 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:16:27,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:16:26" (3/4) ... [2021-10-13 01:16:27,441 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:16:27,441 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:16:27,442 INFO L168 Benchmark]: Toolchain (without parser) took 1785.39 ms. Allocated memory is still 100.7 MB. Free memory was 65.5 MB in the beginning and 72.2 MB in the end (delta: -6.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,443 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 100.7 MB. Free memory was 81.6 MB in the beginning and 81.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,444 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.18 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 79.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:27,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.86 ms. Allocated memory is still 100.7 MB. Free memory was 79.4 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,445 INFO L168 Benchmark]: Boogie Preprocessor took 19.57 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 77.3 MB in the end (delta: 843.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,446 INFO L168 Benchmark]: RCFGBuilder took 247.23 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 69.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:16:27,447 INFO L168 Benchmark]: BuchiAutomizer took 1209.97 ms. Allocated memory is still 100.7 MB. Free memory was 69.0 MB in the beginning and 72.7 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,447 INFO L168 Benchmark]: Witness Printer took 4.26 ms. Allocated memory is still 100.7 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:16:27,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 100.7 MB. Free memory was 81.6 MB in the beginning and 81.6 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.18 ms. Allocated memory is still 100.7 MB. Free memory was 65.3 MB in the beginning and 79.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.86 ms. Allocated memory is still 100.7 MB. Free memory was 79.4 MB in the beginning and 78.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.57 ms. Allocated memory is still 100.7 MB. Free memory was 78.1 MB in the beginning and 77.3 MB in the end (delta: 843.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 247.23 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 69.3 MB in the end (delta: 7.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1209.97 ms. Allocated memory is still 100.7 MB. Free memory was 69.0 MB in the beginning and 72.7 MB in the end (delta: -3.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.26 ms. Allocated memory is still 100.7 MB. Free memory is still 72.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 5 SDslu, 6 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.5ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 01:16:27,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0906163a-62aa-4156-bdff-7a703a75b35d/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...