./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sunset.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sunset.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa --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 b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 19:20:44,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 19:20:44,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 19:20:44,590 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 19:20:44,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 19:20:44,592 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 19:20:44,594 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 19:20:44,596 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 19:20:44,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 19:20:44,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 19:20:44,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 19:20:44,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 19:20:44,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 19:20:44,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 19:20:44,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 19:20:44,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 19:20:44,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 19:20:44,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 19:20:44,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 19:20:44,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 19:20:44,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 19:20:44,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 19:20:44,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 19:20:44,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 19:20:44,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 19:20:44,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 19:20:44,621 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 19:20:44,622 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 19:20:44,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 19:20:44,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 19:20:44,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 19:20:44,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 19:20:44,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 19:20:44,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 19:20:44,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 19:20:44,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 19:20:44,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 19:20:44,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 19:20:44,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 19:20:44,628 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 19:20:44,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 19:20:44,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-06 19:20:44,653 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 19:20:44,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 19:20:44,654 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 19:20:44,654 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 19:20:44,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 19:20:44,655 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 19:20:44,655 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 19:20:44,655 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-06 19:20:44,655 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-06 19:20:44,656 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-06 19:20:44,656 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-06 19:20:44,656 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-06 19:20:44,656 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-06 19:20:44,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-06 19:20:44,657 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 19:20:44,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-06 19:20:44,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 19:20:44,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 19:20:44,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 19:20:44,658 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 19:20:44,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 19:20:44,659 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-06 19:20:44,659 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_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6e6a27fda5fa9acea6a4d245576e05450de5374c21de963811f373e2c8febd9 [2021-12-06 19:20:44,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 19:20:44,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 19:20:44,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 19:20:44,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 19:20:44,862 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 19:20:44,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/termination-restricted-15/Sunset.c [2021-12-06 19:20:44,904 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/data/40b7a5c33/1f18dc4f811a4266bd36fd4a8a7248e0/FLAG7f51f24ff [2021-12-06 19:20:45,272 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 19:20:45,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/sv-benchmarks/c/termination-restricted-15/Sunset.c [2021-12-06 19:20:45,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/data/40b7a5c33/1f18dc4f811a4266bd36fd4a8a7248e0/FLAG7f51f24ff [2021-12-06 19:20:45,287 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/data/40b7a5c33/1f18dc4f811a4266bd36fd4a8a7248e0 [2021-12-06 19:20:45,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 19:20:45,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 19:20:45,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 19:20:45,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 19:20:45,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 19:20:45,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3accf14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45, skipping insertion in model container [2021-12-06 19:20:45,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 19:20:45,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 19:20:45,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:20:45,434 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 19:20:45,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 19:20:45,456 INFO L208 MainTranslator]: Completed translation [2021-12-06 19:20:45,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45 WrapperNode [2021-12-06 19:20:45,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 19:20:45,458 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 19:20:45,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 19:20:45,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 19:20:45,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,479 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2021-12-06 19:20:45,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 19:20:45,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 19:20:45,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 19:20:45,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 19:20:45,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 19:20:45,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 19:20:45,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 19:20:45,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 19:20:45,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (1/1) ... [2021-12-06 19:20:45,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:45,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:45,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:45,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-06 19:20:45,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 19:20:45,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 19:20:45,608 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 19:20:45,609 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 19:20:45,656 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 19:20:45,662 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 19:20:45,663 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 19:20:45,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:20:45 BoogieIcfgContainer [2021-12-06 19:20:45,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 19:20:45,665 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-06 19:20:45,665 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-06 19:20:45,667 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-06 19:20:45,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:20:45,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.12 07:20:45" (1/3) ... [2021-12-06 19:20:45,668 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560529ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:20:45, skipping insertion in model container [2021-12-06 19:20:45,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:20:45,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:20:45" (2/3) ... [2021-12-06 19:20:45,669 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560529ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.12 07:20:45, skipping insertion in model container [2021-12-06 19:20:45,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-06 19:20:45,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:20:45" (3/3) ... [2021-12-06 19:20:45,670 INFO L388 chiAutomizerObserver]: Analyzing ICFG Sunset.c [2021-12-06 19:20:45,707 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-06 19:20:45,707 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-06 19:20:45,707 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-06 19:20:45,707 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-06 19:20:45,708 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-06 19:20:45,708 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-06 19:20:45,708 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-06 19:20:45,708 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-06 19:20:45,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-06 19:20:45,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:45,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:45,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:45,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:20:45,739 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:20:45,740 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-06 19:20:45,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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) [2021-12-06 19:20:45,741 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:45,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:45,741 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:45,741 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-06 19:20:45,741 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:20:45,746 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 4#L13-1true [2021-12-06 19:20:45,747 INFO L793 eck$LassoCheckResult]: Loop: 4#L13-1true assume !!(main_~i~0#1 > 10); 7#L10true assume !(25 == main_~i~0#1); 5#L10-2true assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 4#L13-1true [2021-12-06 19:20:45,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-06 19:20:45,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:45,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859949272] [2021-12-06 19:20:45,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:45,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,819 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,832 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash 40878, now seen corresponding path program 1 times [2021-12-06 19:20:45,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:45,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198151520] [2021-12-06 19:20:45,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:45,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:45,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,855 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:45,856 INFO L85 PathProgramCache]: Analyzing trace with hash 28699820, now seen corresponding path program 1 times [2021-12-06 19:20:45,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:45,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270326457] [2021-12-06 19:20:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:45,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:45,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,865 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:45,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:45,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:45,929 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:45,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:45,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:45,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:45,930 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:20:45,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:45,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:45,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:45,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2021-12-06 19:20:45,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:45,931 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:45,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:45,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:45,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,048 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:46,049 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:20:46,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,052 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-12-06 19:20:46,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,054 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,072 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:46,072 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: [] [2021-12-06 19:20:46,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:46,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-12-06 19:20:46,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:46,112 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: [] [2021-12-06 19:20:46,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-12-06 19:20:46,133 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,134 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-12-06 19:20:46,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-12-06 19:20:46,179 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,180 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-12-06 19:20:46,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:20:46,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,230 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:20:46,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-12-06 19:20:46,233 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:46,233 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:46,233 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:46,233 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:46,234 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:20:46,234 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,234 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:46,234 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:46,234 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration1_Loop [2021-12-06 19:20:46,234 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:46,234 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:46,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,240 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,306 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:46,311 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:20:46,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-12-06 19:20:46,315 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 [2021-12-06 19:20:46,323 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:46,323 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:46,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:46,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:46,327 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:20:46,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:20:46,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:20:46,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-12-06 19:20:46,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,355 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-12-06 19:20:46,357 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 [2021-12-06 19:20:46,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:46,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:46,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:46,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:46,369 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:20:46,369 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:20:46,373 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:20:46,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-12-06 19:20:46,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,394 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-12-06 19:20:46,395 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 [2021-12-06 19:20:46,403 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:46,403 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:20:46,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:46,403 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 19:20:46,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:46,405 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 19:20:46,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:20:46,408 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:20:46,411 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-12-06 19:20:46,411 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:20:46,412 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-12-06 19:20:46,419 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:20:46,419 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:20:46,419 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:20:46,419 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-06 19:20:46,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-12-06 19:20:46,441 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:20:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:46,462 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:46,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:46,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:46,472 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:46,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:46,516 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-06 19:20:46,517 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 19:20:46,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-12-06 19:20:46,567 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 27 states and 36 transitions. Complement of second has 8 states. [2021-12-06 19:20:46,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-12-06 19:20:46,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2021-12-06 19:20:46,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-06 19:20:46,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:46,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-06 19:20:46,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:46,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-06 19:20:46,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:46,574 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 36 transitions. [2021-12-06 19:20:46,576 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:46,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 10 states and 15 transitions. [2021-12-06 19:20:46,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-06 19:20:46,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 19:20:46,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 15 transitions. [2021-12-06 19:20:46,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:46,580 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-12-06 19:20:46,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 15 transitions. [2021-12-06 19:20:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-06 19:20:46,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 9 states have internal predecessors, (15), 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) [2021-12-06 19:20:46,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 15 transitions. [2021-12-06 19:20:46,598 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-12-06 19:20:46,598 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 15 transitions. [2021-12-06 19:20:46,598 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-06 19:20:46,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 15 transitions. [2021-12-06 19:20:46,598 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:46,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:46,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:46,599 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-06 19:20:46,599 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:20:46,599 INFO L791 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 87#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 83#L13-1 assume !!(main_~i~0#1 > 10); 85#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 79#L10-2 [2021-12-06 19:20:46,599 INFO L793 eck$LassoCheckResult]: Loop: 79#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 80#L13-1 assume !!(main_~i~0#1 > 10); 88#L10 assume !(25 == main_~i~0#1); 79#L10-2 [2021-12-06 19:20:46,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:46,599 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2021-12-06 19:20:46,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:46,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590645069] [2021-12-06 19:20:46,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:46,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,603 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:46,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,605 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:46,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:46,606 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 2 times [2021-12-06 19:20:46,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:46,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654242677] [2021-12-06 19:20:46,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:46,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,610 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:46,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:46,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664019, now seen corresponding path program 1 times [2021-12-06 19:20:46,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:46,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623336661] [2021-12-06 19:20:46,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:46,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,619 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:46,622 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:46,638 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:46,638 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:46,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:46,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:46,639 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:20:46,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:46,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:46,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2021-12-06 19:20:46,639 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:46,639 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:46,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:46,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:46,690 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:20:46,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,691 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-12-06 19:20:46,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,693 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,706 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:46,707 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:20:46,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-12-06 19:20:46,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,727 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-12-06 19:20:46,729 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,729 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:46,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:20:46,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2021-12-06 19:20:46,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,770 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-12-06 19:20:46,772 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:46,772 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:46,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:46,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:46,800 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:46,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-12-06 19:20:46,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:20:46,801 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:46,997 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:20:47,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:47,000 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:47,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:47,000 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:47,000 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:47,000 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:20:47,000 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,000 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:47,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:47,001 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration2_Loop [2021-12-06 19:20:47,001 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:47,001 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:47,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,008 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,043 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:47,043 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:20:47,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,044 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-06 19:20:47,045 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 [2021-12-06 19:20:47,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:47,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:47,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:47,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:47,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:20:47,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:20:47,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:20:47,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-12-06 19:20:47,076 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,077 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-06 19:20:47,078 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 [2021-12-06 19:20:47,085 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:47,085 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:20:47,086 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:47,086 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 19:20:47,086 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:47,088 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 19:20:47,088 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:20:47,091 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:20:47,094 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:20:47,094 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:20:47,094 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,095 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-06 19:20:47,096 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:20:47,096 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:20:47,096 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:20:47,096 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-06 19:20:47,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-12-06 19:20:47,115 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:20:47,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,131 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,160 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:20:47,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-12-06 19:20:47,175 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 15 transitions. cyclomatic complexity: 7. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) Result 22 states and 33 transitions. Complement of second has 7 states. [2021-12-06 19:20:47,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:47,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2021-12-06 19:20:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-06 19:20:47,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2021-12-06 19:20:47,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:20:47,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2021-12-06 19:20:47,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 33 transitions. [2021-12-06 19:20:47,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:47,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 28 transitions. [2021-12-06 19:20:47,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 19:20:47,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-06 19:20:47,181 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2021-12-06 19:20:47,181 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:47,181 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2021-12-06 19:20:47,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2021-12-06 19:20:47,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-06 19:20:47,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2021-12-06 19:20:47,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-12-06 19:20:47,183 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-12-06 19:20:47,183 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-12-06 19:20:47,183 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-06 19:20:47,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2021-12-06 19:20:47,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-06 19:20:47,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:47,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:47,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2021-12-06 19:20:47,184 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:20:47,185 INFO L791 eck$LassoCheckResult]: Stem: 164#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 169#L13-1 assume !!(main_~i~0#1 > 10); 170#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 157#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 158#L13-1 assume !!(main_~i~0#1 > 10); 163#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 167#L10-2 [2021-12-06 19:20:47,185 INFO L793 eck$LassoCheckResult]: Loop: 167#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 161#L13-1 assume !!(main_~i~0#1 > 10); 162#L10 assume !(25 == main_~i~0#1); 167#L10-2 [2021-12-06 19:20:47,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1810664017, now seen corresponding path program 1 times [2021-12-06 19:20:47,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:47,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008201779] [2021-12-06 19:20:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:47,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:20:47,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008201779] [2021-12-06 19:20:47,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008201779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:20:47,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:20:47,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 19:20:47,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415202192] [2021-12-06 19:20:47,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:20:47,216 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 19:20:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,217 INFO L85 PathProgramCache]: Analyzing trace with hash 49368, now seen corresponding path program 3 times [2021-12-06 19:20:47,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:47,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119272444] [2021-12-06 19:20:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:47,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:47,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:47,222 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:47,225 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:47,239 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:47,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:47,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:47,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:47,240 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:20:47,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,240 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:47,240 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:47,240 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2021-12-06 19:20:47,240 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:47,240 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:47,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,286 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:47,286 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:20:47,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,287 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-12-06 19:20:47,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:47,307 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:47,320 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:47,320 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:20:47,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:47,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,340 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-12-06 19:20:47,341 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:47,341 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:47,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:47,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:20:47,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-12-06 19:20:47,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,373 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-12-06 19:20:47,374 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:47,374 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:47,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-12-06 19:20:47,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,402 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-12-06 19:20:47,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:20:47,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:47,597 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:20:47,600 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-12-06 19:20:47,600 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:47,600 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:47,600 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:47,600 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:47,600 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:20:47,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,601 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:47,601 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:47,601 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration3_Loop [2021-12-06 19:20:47,601 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:47,601 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:47,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:47,642 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:47,642 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:20:47,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,643 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-12-06 19:20:47,646 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 [2021-12-06 19:20:47,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:47,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:47,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:47,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:47,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:20:47,657 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:20:47,660 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:20:47,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:47,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,679 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-12-06 19:20:47,680 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 [2021-12-06 19:20:47,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:47,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:47,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:47,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:47,690 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-06 19:20:47,690 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-06 19:20:47,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-06 19:20:47,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-12-06 19:20:47,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,712 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-12-06 19:20:47,713 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 [2021-12-06 19:20:47,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:47,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:20:47,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:47,721 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-12-06 19:20:47,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:47,722 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-12-06 19:20:47,722 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:20:47,724 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:20:47,726 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:20:47,727 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-06 19:20:47,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:47,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,728 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-12-06 19:20:47,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:20:47,729 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:20:47,729 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:20:47,729 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2021-12-06 19:20:47,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-12-06 19:20:47,747 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:20:47,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,767 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,785 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:20:47,785 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,801 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 24 states and 35 transitions. Complement of second has 7 states. [2021-12-06 19:20:47,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-12-06 19:20:47,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:20:47,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,803 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 19:20:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,821 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,843 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:20:47,843 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-12-06 19:20:47,861 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22 states and 33 transitions. Complement of second has 7 states. [2021-12-06 19:20:47,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2021-12-06 19:20:47,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:20:47,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,863 INFO L634 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-12-06 19:20:47,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2021-12-06 19:20:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,883 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:47,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,897 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:20:47,897 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,911 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 26 transitions. cyclomatic complexity: 12. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 34 states and 50 transitions. Complement of second has 7 states. [2021-12-06 19:20:47,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2021-12-06 19:20:47,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2021-12-06 19:20:47,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 3 letters. [2021-12-06 19:20:47,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 3 letters. [2021-12-06 19:20:47,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,913 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 7 letters. Loop has 6 letters. [2021-12-06 19:20:47,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:47,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. [2021-12-06 19:20:47,915 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-12-06 19:20:47,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 24 states and 37 transitions. [2021-12-06 19:20:47,915 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 19:20:47,915 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2021-12-06 19:20:47,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 37 transitions. [2021-12-06 19:20:47,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:47,916 INFO L681 BuchiCegarLoop]: Abstraction has 24 states and 37 transitions. [2021-12-06 19:20:47,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 37 transitions. [2021-12-06 19:20:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 16. [2021-12-06 19:20:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.5625) internal successors, (25), 15 states have internal predecessors, (25), 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) [2021-12-06 19:20:47,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2021-12-06 19:20:47,917 INFO L704 BuchiCegarLoop]: Abstraction has 16 states and 25 transitions. [2021-12-06 19:20:47,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:20:47,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 19:20:47,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-06 19:20:47,920 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2021-12-06 19:20:47,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:20:47,933 INFO L93 Difference]: Finished difference Result 19 states and 29 transitions. [2021-12-06 19:20:47,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 19:20:47,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 29 transitions. [2021-12-06 19:20:47,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2021-12-06 19:20:47,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 29 transitions. [2021-12-06 19:20:47,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 19:20:47,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 19:20:47,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 29 transitions. [2021-12-06 19:20:47,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:47,935 INFO L681 BuchiCegarLoop]: Abstraction has 19 states and 29 transitions. [2021-12-06 19:20:47,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 29 transitions. [2021-12-06 19:20:47,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2021-12-06 19:20:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 16 states have internal predecessors, (26), 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) [2021-12-06 19:20:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2021-12-06 19:20:47,937 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-12-06 19:20:47,937 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2021-12-06 19:20:47,937 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-06 19:20:47,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 26 transitions. [2021-12-06 19:20:47,938 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2021-12-06 19:20:47,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:47,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:47,938 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-06 19:20:47,938 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-06 19:20:47,938 INFO L791 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 432#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 435#L13-1 assume !!(main_~i~0#1 > 10); 433#L10 [2021-12-06 19:20:47,938 INFO L793 eck$LassoCheckResult]: Loop: 433#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 424#L10-2 assume !(main_~i~0#1 <= 30);main_~i~0#1 := 20; 426#L13-1 assume !!(main_~i~0#1 > 10); 433#L10 [2021-12-06 19:20:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,938 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-12-06 19:20:47,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:47,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128805879] [2021-12-06 19:20:47,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:47,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:47,941 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:47,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:47,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,943 INFO L85 PathProgramCache]: Analyzing trace with hash 43938, now seen corresponding path program 1 times [2021-12-06 19:20:47,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:47,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265373082] [2021-12-06 19:20:47,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:47,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:20:47,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265373082] [2021-12-06 19:20:47,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265373082] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 19:20:47,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 19:20:47,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 19:20:47,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250817780] [2021-12-06 19:20:47,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 19:20:47,952 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-06 19:20:47,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:20:47,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 19:20:47,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 19:20:47,952 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. cyclomatic complexity: 11 Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 19:20:47,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:20:47,959 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2021-12-06 19:20:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 19:20:47,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-12-06 19:20:47,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-06 19:20:47,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 22 transitions. [2021-12-06 19:20:47,960 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2021-12-06 19:20:47,960 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2021-12-06 19:20:47,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 22 transitions. [2021-12-06 19:20:47,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:47,960 INFO L681 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2021-12-06 19:20:47,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 22 transitions. [2021-12-06 19:20:47,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2021-12-06 19:20:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 16 states have internal predecessors, (21), 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) [2021-12-06 19:20:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-12-06 19:20:47,962 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-12-06 19:20:47,962 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-12-06 19:20:47,962 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-12-06 19:20:47,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2021-12-06 19:20:47,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-06 19:20:47,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:47,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:47,963 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2021-12-06 19:20:47,963 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2021-12-06 19:20:47,963 INFO L791 eck$LassoCheckResult]: Stem: 471#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 472#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 474#L13-1 assume !!(main_~i~0#1 > 10); 473#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 468#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 467#L13-1 assume !!(main_~i~0#1 > 10); 466#L10 assume !(25 == main_~i~0#1); 469#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 470#L13-1 assume !!(main_~i~0#1 > 10); 479#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 475#L10-2 [2021-12-06 19:20:47,963 INFO L793 eck$LassoCheckResult]: Loop: 475#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 465#L13-1 assume !!(main_~i~0#1 > 10); 466#L10 assume !(25 == main_~i~0#1); 469#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 470#L13-1 assume !!(main_~i~0#1 > 10); 479#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 475#L10-2 [2021-12-06 19:20:47,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 997539140, now seen corresponding path program 2 times [2021-12-06 19:20:47,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:47,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351357768] [2021-12-06 19:20:47,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:47,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:47,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 19:20:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351357768] [2021-12-06 19:20:47,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351357768] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 19:20:47,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660877089] [2021-12-06 19:20:47,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-06 19:20:47,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 19:20:47,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:47,986 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 19:20:47,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-06 19:20:48,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-06 19:20:48,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-06 19:20:48,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 19:20:48,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:48,022 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:48,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-06 19:20:48,045 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:48,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660877089] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-06 19:20:48,045 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-06 19:20:48,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-06 19:20:48,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44472805] [2021-12-06 19:20:48,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-06 19:20:48,045 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-06 19:20:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:48,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1470741663, now seen corresponding path program 1 times [2021-12-06 19:20:48,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:48,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120330325] [2021-12-06 19:20:48,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:48,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,050 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:48,070 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:48,070 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:48,070 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:48,070 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:48,070 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-06 19:20:48,070 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,070 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:48,070 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:48,070 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2021-12-06 19:20:48,070 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:48,070 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:48,071 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,072 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,075 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,091 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:48,092 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-06 19:20:48,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:48,092 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:48,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-12-06 19:20:48,094 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:48,094 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:48,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-06 19:20:48,108 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-06 19:20:48,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2021-12-06 19:20:48,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:48,127 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:48,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-12-06 19:20:48,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-06 19:20:48,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:48,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2021-12-06 19:20:48,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:48,160 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:48,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-12-06 19:20:48,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-06 19:20:48,161 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-06 19:20:48,171 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-06 19:20:48,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-12-06 19:20:48,189 INFO L210 LassoAnalysis]: Preferences: [2021-12-06 19:20:48,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-06 19:20:48,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-06 19:20:48,189 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-06 19:20:48,189 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-06 19:20:48,189 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-06 19:20:48,190 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-06 19:20:48,190 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sunset.c_Iteration5_Loop [2021-12-06 19:20:48,190 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-06 19:20:48,190 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-06 19:20:48,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-06 19:20:48,208 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-06 19:20:48,208 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-06 19:20:48,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:48,209 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:48,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-12-06 19:20:48,210 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 [2021-12-06 19:20:48,217 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-06 19:20:48,217 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-06 19:20:48,217 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-06 19:20:48,217 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-06 19:20:48,217 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-06 19:20:48,217 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-06 19:20:48,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-06 19:20:48,219 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-06 19:20:48,221 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-06 19:20:48,221 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-06 19:20:48,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-06 19:20:48,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 19:20:48,222 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-06 19:20:48,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-12-06 19:20:48,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-06 19:20:48,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-06 19:20:48,223 INFO L513 LassoAnalysis]: Proved termination. [2021-12-06 19:20:48,223 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 57 Supporting invariants [] [2021-12-06 19:20:48,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-12-06 19:20:48,242 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-06 19:20:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:48,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 19:20:48,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 19:20:48,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 19:20:48,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 19:20:48,284 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 19:20:48,284 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-06 19:20:48,284 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 19:20:48,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 21 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 31 states and 37 transitions. Complement of second has 7 states. [2021-12-06 19:20:48,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-06 19:20:48,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-12-06 19:20:48,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-06 19:20:48,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-12-06 19:20:48,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:48,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 16 letters. Loop has 6 letters. [2021-12-06 19:20:48,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:48,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 12 letters. [2021-12-06 19:20:48,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-06 19:20:48,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2021-12-06 19:20:48,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2021-12-06 19:20:48,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 30 states and 36 transitions. [2021-12-06 19:20:48,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 19:20:48,305 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 19:20:48,305 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 36 transitions. [2021-12-06 19:20:48,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:48,305 INFO L681 BuchiCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-12-06 19:20:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 36 transitions. [2021-12-06 19:20:48,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2021-12-06 19:20:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 25 states have internal predecessors, (32), 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) [2021-12-06 19:20:48,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2021-12-06 19:20:48,307 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2021-12-06 19:20:48,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 19:20:48,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 19:20:48,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-12-06 19:20:48,307 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-12-06 19:20:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 19:20:48,325 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2021-12-06 19:20:48,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-06 19:20:48,326 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 40 transitions. [2021-12-06 19:20:48,326 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2021-12-06 19:20:48,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 31 states and 35 transitions. [2021-12-06 19:20:48,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2021-12-06 19:20:48,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-06 19:20:48,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 35 transitions. [2021-12-06 19:20:48,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-06 19:20:48,327 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-12-06 19:20:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 35 transitions. [2021-12-06 19:20:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2021-12-06 19:20:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 25 states have internal predecessors, (30), 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) [2021-12-06 19:20:48,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2021-12-06 19:20:48,329 INFO L704 BuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-12-06 19:20:48,329 INFO L587 BuchiCegarLoop]: Abstraction has 26 states and 30 transitions. [2021-12-06 19:20:48,329 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-12-06 19:20:48,329 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 30 transitions. [2021-12-06 19:20:48,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2021-12-06 19:20:48,329 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-06 19:20:48,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-06 19:20:48,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [6, 5, 4, 2, 1, 1] [2021-12-06 19:20:48,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [5, 5, 4, 1] [2021-12-06 19:20:48,330 INFO L791 eck$LassoCheckResult]: Stem: 711#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 712#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 714#L13-1 assume !!(main_~i~0#1 > 10); 713#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 708#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 707#L13-1 assume !!(main_~i~0#1 > 10); 706#L10 assume !(25 == main_~i~0#1); 709#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 710#L13-1 assume !!(main_~i~0#1 > 10); 730#L10 assume !(25 == main_~i~0#1); 729#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 728#L13-1 assume !!(main_~i~0#1 > 10); 727#L10 assume !(25 == main_~i~0#1); 726#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 725#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 721#L13-1 assume !!(main_~i~0#1 > 10); 719#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 718#L10-2 [2021-12-06 19:20:48,330 INFO L793 eck$LassoCheckResult]: Loop: 718#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 705#L13-1 assume !!(main_~i~0#1 > 10); 706#L10 assume !(25 == main_~i~0#1); 709#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 710#L13-1 assume !!(main_~i~0#1 > 10); 730#L10 assume !(25 == main_~i~0#1); 729#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 728#L13-1 assume !!(main_~i~0#1 > 10); 727#L10 assume !(25 == main_~i~0#1); 726#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 725#L13-1 assume !!(main_~i~0#1 > 10); 724#L10 assume !(25 == main_~i~0#1); 720#L10-2 assume main_~i~0#1 <= 30;main_~i~0#1 := main_~i~0#1 - 1; 721#L13-1 assume !!(main_~i~0#1 > 10); 719#L10 assume 25 == main_~i~0#1;main_~i~0#1 := 30; 718#L10-2 [2021-12-06 19:20:48,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1587470191, now seen corresponding path program 3 times [2021-12-06 19:20:48,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:48,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925764638] [2021-12-06 19:20:48,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:48,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,337 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,343 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:48,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:48,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1155970966, now seen corresponding path program 2 times [2021-12-06 19:20:48,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:48,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048400471] [2021-12-06 19:20:48,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:48,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:48,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,348 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:48,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:48,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 19:20:48,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1288805114, now seen corresponding path program 4 times [2021-12-06 19:20:48,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 19:20:48,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978098679] [2021-12-06 19:20:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 19:20:48,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 19:20:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,363 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 19:20:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 19:20:48,372 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 19:20:48,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.12 07:20:48 BoogieIcfgContainer [2021-12-06 19:20:48,447 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-06 19:20:48,447 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 19:20:48,447 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 19:20:48,448 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 19:20:48,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:20:45" (3/4) ... [2021-12-06 19:20:48,449 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-06 19:20:48,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 19:20:48,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 19:20:48,477 INFO L158 Benchmark]: Toolchain (without parser) took 3186.62ms. Allocated memory is still 146.8MB. Free memory was 116.5MB in the beginning and 60.3MB in the end (delta: 56.2MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,478 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:20:48,478 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.42ms. Allocated memory is still 146.8MB. Free memory was 116.2MB in the beginning and 124.2MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.61ms. Allocated memory is still 146.8MB. Free memory was 124.2MB in the beginning and 122.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 19:20:48,479 INFO L158 Benchmark]: Boogie Preprocessor took 12.18ms. Allocated memory is still 146.8MB. Free memory was 122.9MB in the beginning and 122.3MB in the end (delta: 685.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,479 INFO L158 Benchmark]: RCFGBuilder took 171.27ms. Allocated memory is still 146.8MB. Free memory was 121.8MB in the beginning and 114.3MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,480 INFO L158 Benchmark]: BuchiAutomizer took 2782.60ms. Allocated memory is still 146.8MB. Free memory was 113.9MB in the beginning and 62.3MB in the end (delta: 51.5MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,480 INFO L158 Benchmark]: Witness Printer took 29.23ms. Allocated memory is still 146.8MB. Free memory was 62.3MB in the beginning and 60.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 19:20:48,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.42ms. Allocated memory is still 146.8MB. Free memory was 116.2MB in the beginning and 124.2MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.61ms. Allocated memory is still 146.8MB. Free memory was 124.2MB in the beginning and 122.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.18ms. Allocated memory is still 146.8MB. Free memory was 122.9MB in the beginning and 122.3MB in the end (delta: 685.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 171.27ms. Allocated memory is still 146.8MB. Free memory was 121.8MB in the beginning and 114.3MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2782.60ms. Allocated memory is still 146.8MB. Free memory was 113.9MB in the beginning and 62.3MB in the end (delta: 51.5MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Witness Printer took 29.23ms. Allocated memory is still 146.8MB. Free memory was 62.3MB in the beginning and 60.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 57 and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 26 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 6 iterations. TraceHistogramMax:6. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 21 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 26 states and ocurred in iteration 5. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/3 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 71 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 134 IncrementalHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 58 mSDtfsCounter, 134 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf97 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf151 smp89 tf107 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {i=30, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b8aabb6=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 Loop: [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND FALSE !(i == 25) [L13] COND TRUE i <= 30 [L14] i = i-1 [L9] COND TRUE i > 10 [L10] COND TRUE i == 25 [L11] i = 30 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-06 19:20:48,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-12-06 19:20:48,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-12-06 19:20:48,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54bd63c6-fe92-41a7-8d97-9dea7de44633/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)