./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:18:56,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:18:56,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:18:56,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:18:56,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:18:56,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:18:56,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:18:56,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:18:56,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:18:56,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:18:56,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:18:56,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:18:56,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:18:56,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:18:56,370 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:18:56,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:18:56,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:18:56,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:18:56,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:18:56,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:18:56,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:18:56,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:18:56,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:18:56,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:18:56,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:18:56,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:18:56,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:18:56,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:18:56,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:18:56,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:18:56,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:18:56,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:18:56,436 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:18:56,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:18:56,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:18:56,441 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:18:56,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:18:56,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:18:56,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:18:56,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:18:56,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:18:56,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-19 04:18:56,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:18:56,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:18:56,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:18:56,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:18:56,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:18:56,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:18:56,514 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:18:56,514 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-19 04:18:56,514 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-19 04:18:56,515 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-19 04:18:56,515 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-19 04:18:56,515 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-19 04:18:56,515 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-19 04:18:56,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:18:56,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 04:18:56,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:18:56,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:18:56,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-19 04:18:56,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-19 04:18:56,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-19 04:18:56,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:18:56,518 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-19 04:18:56,518 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:18:56,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-19 04:18:56,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:18:56,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:18:56,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:18:56,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:18:56,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:18:56,521 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-19 04:18:56,521 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_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 033772d605bbfacd7bdbacf0756e3bc9cfb2f8cbffe91002f61ae4b41e344064 [2021-11-19 04:18:56,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:18:56,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:18:56,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:18:56,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:18:56,869 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:18:56,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2021-11-19 04:18:56,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/data/8518b65da/3bc03fa0eef5448c93e00645a2b6d24b/FLAG0f2d9d54d [2021-11-19 04:18:57,453 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:18:57,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2021-11-19 04:18:57,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/data/8518b65da/3bc03fa0eef5448c93e00645a2b6d24b/FLAG0f2d9d54d [2021-11-19 04:18:57,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/data/8518b65da/3bc03fa0eef5448c93e00645a2b6d24b [2021-11-19 04:18:57,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:18:57,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:18:57,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:18:57,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:18:57,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:18:57,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:57" (1/1) ... [2021-11-19 04:18:57,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@631afad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:57, skipping insertion in model container [2021-11-19 04:18:57,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:18:57" (1/1) ... [2021-11-19 04:18:57,858 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:18:57,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:18:58,053 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:18:58,058 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:18:58,074 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:18:58,090 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:18:58,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58 WrapperNode [2021-11-19 04:18:58,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:18:58,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:18:58,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:18:58,093 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:18:58,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,110 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,131 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2021-11-19 04:18:58,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:18:58,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:18:58,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:18:58,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:18:58,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:18:58,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:18:58,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:18:58,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:18:58,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (1/1) ... [2021-11-19 04:18:58,175 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:58,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:58,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:58,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-19 04:18:58,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:18:58,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:18:58,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:18:58,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:18:58,420 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:18:58,427 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:18:58,428 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 04:18:58,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:58 BoogieIcfgContainer [2021-11-19 04:18:58,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:18:58,431 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-19 04:18:58,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-19 04:18:58,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-19 04:18:58,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:18:58,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 04:18:57" (1/3) ... [2021-11-19 04:18:58,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d8b7bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:18:58, skipping insertion in model container [2021-11-19 04:18:58,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:18:58,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:18:58" (2/3) ... [2021-11-19 04:18:58,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d8b7bd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 04:18:58, skipping insertion in model container [2021-11-19 04:18:58,440 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-19 04:18:58,440 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:58" (3/3) ... [2021-11-19 04:18:58,447 INFO L388 chiAutomizerObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c [2021-11-19 04:18:58,505 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-19 04:18:58,505 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-19 04:18:58,505 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-19 04:18:58,505 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-19 04:18:58,505 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-19 04:18:58,505 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-19 04:18:58,506 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-19 04:18:58,506 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-19 04:18:58,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:18:58,559 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:18:58,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:18:58,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:18:58,566 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:18:58,566 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:18:58,566 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-19 04:18:58,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:18:58,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-19 04:18:58,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-19 04:18:58,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-19 04:18:58,569 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-19 04:18:58,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-19 04:18:58,577 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := 23; 4#L17-2true [2021-11-19 04:18:58,578 INFO L793 eck$LassoCheckResult]: Loop: 4#L17-2true assume !!(main_~x~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~y~0#1;main_~y~0#1 := 1 + main_~y~0#1; 4#L17-2true [2021-11-19 04:18:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:18:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-19 04:18:58,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:18:58,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143710536] [2021-11-19 04:18:58,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:18:58,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:18:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,658 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:18:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,679 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:18:58,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:18:58,683 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-19 04:18:58,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:18:58,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794696169] [2021-11-19 04:18:58,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:18:58,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:18:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,697 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:18:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,704 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:18:58,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:18:58,706 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-19 04:18:58,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:18:58,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916981465] [2021-11-19 04:18:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:18:58,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:18:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,716 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 04:18:58,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 04:18:58,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 04:18:58,792 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:18:58,793 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:18:58,793 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:18:58,793 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:18:58,794 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-19 04:18:58,794 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:58,794 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:18:58,794 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:18:58,794 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2021-11-19 04:18:58,795 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:18:58,795 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:18:58,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:58,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:58,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:58,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:18:58,924 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-19 04:18:58,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:58,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:58,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:58,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-19 04:18:58,990 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:18:58,990 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:18:59,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:18:59,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:18:59,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-19 04:18:59,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:18:59,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:18:59,098 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-19 04:18:59,098 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-19 04:18:59,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-19 04:18:59,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-19 04:18:59,130 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:18:59,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,172 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-19 04:18:59,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-19 04:18:59,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-19 04:18:59,329 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-19 04:18:59,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-11-19 04:18:59,334 INFO L210 LassoAnalysis]: Preferences: [2021-11-19 04:18:59,335 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-19 04:18:59,335 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-19 04:18:59,335 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-19 04:18:59,335 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-19 04:18:59,335 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,335 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-19 04:18:59,335 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-19 04:18:59,335 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig1.c_Iteration1_Loop [2021-11-19 04:18:59,336 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-19 04:18:59,336 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-19 04:18:59,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:59,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:59,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-19 04:18:59,446 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-19 04:18:59,452 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-19 04:18:59,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,462 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-19 04:18:59,476 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:18:59,483 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:18:59,484 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:18:59,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:18:59,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,542 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,561 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,561 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,561 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:18:59,565 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-19 04:18:59,566 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-19 04:18:59,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-19 04:18:59,594 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:18:59,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,633 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-19 04:18:59,637 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,645 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,645 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:18:59,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-19 04:18:59,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-19 04:18:59,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:18:59,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:18:59,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,691 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-19 04:18:59,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,692 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-19 04:18:59,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,702 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:18:59,708 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-19 04:18:59,708 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-19 04:18:59,733 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:18:59,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-19 04:18:59,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,758 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,764 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-19 04:18:59,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,772 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:18:59,777 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-19 04:18:59,777 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-19 04:18:59,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-19 04:18:59,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,843 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-19 04:18:59,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-19 04:18:59,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-19 04:18:59,867 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-19 04:18:59,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-19 04:18:59,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-19 04:18:59,867 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-19 04:18:59,870 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-19 04:18:59,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-19 04:18:59,890 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-19 04:18:59,896 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-19 04:18:59,896 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-19 04:18:59,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-19 04:18:59,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:18:59,900 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-19 04:18:59,906 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-19 04:18:59,906 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-19 04:18:59,906 INFO L513 LassoAnalysis]: Proved termination. [2021-11-19 04:18:59,907 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0#1 + 1 f1 = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2021-11-19 04:18:59,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-19 04:18:59,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-19 04:18:59,946 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-19 04:19:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:19:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:19:00,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 04:19:00,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:19:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:19:00,054 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 04:19:00,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:19:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:19:00,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2021-11-19 04:19:00,115 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-19 04:19:00,116 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:19:00,166 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2021-11-19 04:19:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-19 04:19:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 04:19:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2021-11-19 04:19:00,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-19 04:19:00,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:19:00,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-19 04:19:00,179 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:19:00,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-19 04:19:00,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-19 04:19:00,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2021-11-19 04:19:00,189 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:19:00,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2021-11-19 04:19:00,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-19 04:19:00,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-19 04:19:00,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-19 04:19:00,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-19 04:19:00,199 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:19:00,199 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:19:00,199 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:19:00,199 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-19 04:19:00,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:19:00,199 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-19 04:19:00,199 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-19 04:19:00,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 04:19:00 BoogieIcfgContainer [2021-11-19 04:19:00,206 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-19 04:19:00,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:19:00,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:19:00,207 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:19:00,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:58" (3/4) ... [2021-11-19 04:19:00,210 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 04:19:00,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:19:00,211 INFO L158 Benchmark]: Toolchain (without parser) took 2372.69ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 88.1MB in the beginning and 137.4MB in the end (delta: -49.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:00,212 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:00,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.16ms. Allocated memory is still 127.9MB. Free memory was 87.9MB in the beginning and 103.2MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:19:00,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.70ms. Allocated memory is still 127.9MB. Free memory was 103.2MB in the beginning and 101.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:00,214 INFO L158 Benchmark]: Boogie Preprocessor took 30.28ms. Allocated memory is still 127.9MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 532.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:19:00,215 INFO L158 Benchmark]: RCFGBuilder took 266.08ms. Allocated memory is still 127.9MB. Free memory was 101.1MB in the beginning and 92.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 04:19:00,215 INFO L158 Benchmark]: BuchiAutomizer took 1774.99ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 92.8MB in the beginning and 137.4MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:00,216 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 167.8MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:19:00,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.16ms. Allocated memory is still 127.9MB. Free memory was 87.9MB in the beginning and 103.2MB in the end (delta: -15.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.70ms. Allocated memory is still 127.9MB. Free memory was 103.2MB in the beginning and 101.7MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.28ms. Allocated memory is still 127.9MB. Free memory was 101.7MB in the beginning and 101.1MB in the end (delta: 532.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.08ms. Allocated memory is still 127.9MB. Free memory was 101.1MB in the beginning and 92.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1774.99ms. Allocated memory was 127.9MB in the beginning and 167.8MB in the end (delta: 39.8MB). Free memory was 92.8MB in the beginning and 137.4MB in the end (delta: -44.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 167.8MB. Free memory is still 137.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-19 04:19:00,271 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a723a5aa-e02d-400b-8196-83f07322dd21/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE