./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg --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 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:49:11,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:49:11,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:49:11,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:49:11,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:49:11,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:49:11,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:49:11,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:49:11,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:49:11,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:49:11,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:49:11,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:49:11,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:49:11,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:49:11,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:49:11,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:49:11,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:49:11,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:49:11,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:49:11,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:49:11,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:49:11,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:49:11,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:49:11,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:49:11,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:49:11,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:49:11,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:49:11,338 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:49:11,339 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:49:11,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:49:11,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:49:11,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:49:11,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:49:11,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:49:11,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:49:11,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:49:11,350 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:49:11,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:49:11,351 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:49:11,352 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:49:11,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:49:11,354 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:49:11,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:49:11,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:49:11,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:49:11,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:49:11,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:49:11,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:49:11,422 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:49:11,423 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:49:11,423 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:49:11,423 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:49:11,425 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:49:11,425 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:49:11,425 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:49:11,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:49:11,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:49:11,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:49:11,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:49:11,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:49:11,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:49:11,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:49:11,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:49:11,427 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:49:11,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:49:11,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:49:11,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:49:11,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:49:11,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:49:11,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:49:11,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:49:11,433 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:49:11,433 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_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 706881f151574cd444dafd615d249704df8f903990098d13198cd104c5c995e4 [2021-10-28 09:49:11,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:49:11,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:49:11,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:49:11,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:49:11,794 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:49:11,795 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-10-28 09:49:11,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/data/7fcffca1d/9f4f226bd10b40a39fc2fa7555bef3cf/FLAGc945a5a03 [2021-10-28 09:49:12,367 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:49:12,367 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-10-28 09:49:12,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/data/7fcffca1d/9f4f226bd10b40a39fc2fa7555bef3cf/FLAGc945a5a03 [2021-10-28 09:49:12,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/data/7fcffca1d/9f4f226bd10b40a39fc2fa7555bef3cf [2021-10-28 09:49:12,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:49:12,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:49:12,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:49:12,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:49:12,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:49:12,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:49:12" (1/1) ... [2021-10-28 09:49:12,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c0928f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:12, skipping insertion in model container [2021-10-28 09:49:12,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:49:12" (1/1) ... [2021-10-28 09:49:12,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:49:12,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:49:12,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:49:12,977 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:49:13,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:49:13,018 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:49:13,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13 WrapperNode [2021-10-28 09:49:13,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:49:13,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:49:13,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:49:13,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:49:13,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:49:13,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:49:13,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:49:13,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:49:13,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:49:13,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:49:13,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:49:13,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:49:13,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (1/1) ... [2021-10-28 09:49:13,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:13,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:13,110 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:13,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:49:13,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:49:13,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:49:13,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:49:13,319 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:49:13,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:49:13 BoogieIcfgContainer [2021-10-28 09:49:13,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:49:13,324 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:49:13,324 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:49:13,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:49:13,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:49:13,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:49:12" (1/3) ... [2021-10-28 09:49:13,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e82454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:49:13, skipping insertion in model container [2021-10-28 09:49:13,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:49:13,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:49:13" (2/3) ... [2021-10-28 09:49:13,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59e82454 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:49:13, skipping insertion in model container [2021-10-28 09:49:13,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:49:13,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:49:13" (3/3) ... [2021-10-28 09:49:13,333 INFO L389 chiAutomizerObserver]: Analyzing ICFG ChenFlurMukhopadhyay-SAS2012-Ex3.01.c [2021-10-28 09:49:13,395 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:49:13,396 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:49:13,396 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:49:13,396 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:49:13,396 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:49:13,396 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:49:13,396 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:49:13,396 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:49:13,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-28 09:49:13,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:49:13,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:49:13,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:49:13,435 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:49:13,436 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:49:13,436 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:49:13,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-10-28 09:49:13,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:49:13,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:49:13,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:49:13,438 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:49:13,438 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:49:13,444 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L27-2true [2021-10-28 09:49:13,445 INFO L793 eck$LassoCheckResult]: Loop: 7#L27-2true assume !!(main_~x~0 < main_~y~0);main_~x~0 := 1 + main_~x~0;main_~y~0 := main_~z~0; 7#L27-2true [2021-10-28 09:49:13,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:13,451 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:49:13,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:49:13,466 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334173484] [2021-10-28 09:49:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:49:13,467 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:49:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,544 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:49:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,565 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:49:13,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:13,569 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-28 09:49:13,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:49:13,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5355273] [2021-10-28 09:49:13,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:49:13,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:49:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,583 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:49:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,589 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:49:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:13,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:49:13,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:49:13,592 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337686919] [2021-10-28 09:49:13,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:49:13,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:49:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,601 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:49:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:49:13,609 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:49:13,687 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:49:13,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:49:13,688 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:49:13,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:49:13,688 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:49:13,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:13,689 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:49:13,689 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:49:13,689 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop [2021-10-28 09:49:13,689 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:49:13,689 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:49:13,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:13,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:13,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:13,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:49:13,859 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:49:13,861 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:13,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:13,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:13,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:49:13,871 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:49:13,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:49:13,893 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:49:13,893 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:49:13,917 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:13,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:13,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:13,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:13,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:49:13,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:49:13,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:49:13,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:49:13,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:49:13,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:13,973 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:13,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:13,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:13,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:49:13,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:49:13,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:49:14,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:14,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:14,039 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:14,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:49:14,058 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:49:14,058 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:49:14,585 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:49:14,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:14,591 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:49:14,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:49:14,592 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:49:14,592 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:49:14,592 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:49:14,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:49:14,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:49:14,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChenFlurMukhopadhyay-SAS2012-Ex3.01.c_Iteration1_Loop [2021-10-28 09:49:14,593 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:49:14,593 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:49:14,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:14,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:14,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:49:14,704 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:49:14,708 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:49:14,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:14,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:14,738 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 [2021-10-28 09:49:14,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:49:14,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:14,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:14,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:14,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:14,758 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:14,758 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:14,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:14,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:14,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:14,818 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:14,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:49:14,820 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 [2021-10-28 09:49:14,830 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:14,830 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:14,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:14,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:14,835 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:49:14,836 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:49:14,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:14,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:14,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:14,914 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:14,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:49:14,923 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:49:14,932 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:14,932 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:14,932 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:14,933 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:14,933 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:49:14,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:49:14,935 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:14,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:14,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:14,982 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-28 09:49:14,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:14,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:14,983 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:14,995 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 [2021-10-28 09:49:14,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:49:15,006 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:15,006 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:15,006 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:15,007 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:49:15,035 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 09:49:15,035 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 09:49:15,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:15,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:15,068 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:15,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:15,070 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:15,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:49:15,075 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 [2021-10-28 09:49:15,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:15,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:15,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:15,083 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:49:15,090 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-28 09:49:15,090 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-28 09:49:15,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:49:15,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:15,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:15,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:15,133 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:15,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:49:15,135 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 [2021-10-28 09:49:15,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:49:15,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:49:15,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:49:15,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:49:15,144 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-28 09:49:15,147 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-28 09:49:15,147 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:49:15,174 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:49:15,184 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-28 09:49:15,185 INFO L444 ModelExtractionUtils]: 3 out of 9 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:49:15,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:49:15,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:49:15,194 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:49:15,215 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:49:15,215 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:49:15,216 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:49:15,216 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 1*ULTIMATE.start_main_~z~0 - 1*ULTIMATE.start_main_~x~0 f1 = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:49:15,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:49:15,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:15,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:49:15,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:49:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:15,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:49:15,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:49:15,320 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:49:15,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:49:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:49:15,343 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-10-28 09:49:15,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-10-28 09:49:15,379 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 15 states and 18 transitions. Complement of second has 5 states. [2021-10-28 09:49:15,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:49:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-10-28 09:49:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 09:49:15,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-28 09:49:15,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:15,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 09:49:15,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:15,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 09:49:15,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:49:15,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-28 09:49:15,387 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:49:15,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-28 09:49:15,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:49:15,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:49:15,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:49:15,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:49:15,392 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:15,392 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:15,392 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:49:15,392 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:49:15,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:49:15,393 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:49:15,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:49:15,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:49:15 BoogieIcfgContainer [2021-10-28 09:49:15,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:49:15,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:49:15,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:49:15,400 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:49:15,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:49:13" (3/4) ... [2021-10-28 09:49:15,404 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:49:15,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:49:15,406 INFO L168 Benchmark]: Toolchain (without parser) took 2654.00 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 89.2 MB in the beginning and 105.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:15,406 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:15,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.52 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 95.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:15,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.59 ms. Allocated memory is still 119.5 MB. Free memory was 95.7 MB in the beginning and 94.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:15,408 INFO L168 Benchmark]: Boogie Preprocessor took 20.52 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.7 MB in the end (delta: 777.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:15,409 INFO L168 Benchmark]: RCFGBuilder took 246.01 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 85.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:15,410 INFO L168 Benchmark]: BuchiAutomizer took 2075.19 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 105.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:49:15,410 INFO L168 Benchmark]: Witness Printer took 4.44 ms. Allocated memory is still 144.7 MB. Free memory is still 105.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:49:15,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 119.5 MB. Free memory is still 73.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.52 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 95.7 MB in the end (delta: -6.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.59 ms. Allocated memory is still 119.5 MB. Free memory was 95.7 MB in the beginning and 94.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.52 ms. Allocated memory is still 119.5 MB. Free memory was 94.5 MB in the beginning and 93.7 MB in the end (delta: 777.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 246.01 ms. Allocated memory is still 119.5 MB. Free memory was 93.4 MB in the beginning and 85.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2075.19 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 85.7 MB in the beginning and 105.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.44 ms. Allocated memory is still 144.7 MB. Free memory is still 105.1 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 2-nested ranking function (if z + -1 * x > 0 then 1 else 0), (if z + -1 * x > 0 then z + -1 * x else y + -1 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.8s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 63ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:49:15,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:49:15,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48ccce1-06c8-4a1b-9f89-3e84fa3b3079/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...