./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC9.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 412fb3b66f422c2f340abd39599b6085b130f6c6cf8ebb6dae738faf0b014126 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:05:57,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:05:57,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:05:57,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:05:57,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:05:57,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:05:57,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:05:57,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:05:57,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:05:57,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:05:57,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:05:57,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:05:57,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:05:57,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:05:57,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:05:57,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:05:57,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:05:57,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:05:57,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:05:57,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:05:57,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:05:57,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:05:57,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:05:57,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:05:57,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:05:57,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:05:57,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:05:57,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:05:57,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:05:57,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:05:57,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:05:57,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:05:57,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:05:57,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:05:57,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:05:57,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:05:57,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:05:57,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:05:57,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:05:57,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:05:57,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:05:57,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:05:57,771 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:05:57,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:05:57,772 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:05:57,772 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:05:57,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:05:57,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:05:57,775 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:05:57,775 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:05:57,775 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:05:57,776 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:05:57,777 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:05:57,778 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:05:57,778 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:05:57,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:05:57,778 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:05:57,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:05:57,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:05:57,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:05:57,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:05:57,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:05:57,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:05:57,780 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:05:57,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:05:57,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:05:57,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:05:57,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:05:57,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:05:57,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:05:57,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:05:57,787 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:05:57,787 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_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 412fb3b66f422c2f340abd39599b6085b130f6c6cf8ebb6dae738faf0b014126 [2021-10-28 09:05:58,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:05:58,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:05:58,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:05:58,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:05:58,248 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:05:58,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-restricted-15/PastaC9.c [2021-10-28 09:05:58,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/data/8504c9522/b66415df625940479c56efb46eaa09df/FLAG7d40518ff [2021-10-28 09:05:58,922 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:05:58,923 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/sv-benchmarks/c/termination-restricted-15/PastaC9.c [2021-10-28 09:05:58,940 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/data/8504c9522/b66415df625940479c56efb46eaa09df/FLAG7d40518ff [2021-10-28 09:05:59,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/data/8504c9522/b66415df625940479c56efb46eaa09df [2021-10-28 09:05:59,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:05:59,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:05:59,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:59,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:05:59,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:05:59,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3893912f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59, skipping insertion in model container [2021-10-28 09:05:59,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:05:59,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:05:59,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:59,512 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:05:59,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:05:59,545 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:05:59,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59 WrapperNode [2021-10-28 09:05:59,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:05:59,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:59,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:05:59,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:05:59,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,567 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:05:59,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:05:59,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:05:59,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:05:59,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,611 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:05:59,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:05:59,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:05:59,613 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:05:59,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (1/1) ... [2021-10-28 09:05:59,626 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:05:59,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:05:59,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:05:59,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:05:59,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:05:59,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:05:59,861 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:05:59,862 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:05:59,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:59 BoogieIcfgContainer [2021-10-28 09:05:59,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:05:59,865 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:05:59,865 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:05:59,868 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:05:59,871 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:59,871 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:05:59" (1/3) ... [2021-10-28 09:05:59,872 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127bacd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:05:59, skipping insertion in model container [2021-10-28 09:05:59,873 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:59,873 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:05:59" (2/3) ... [2021-10-28 09:05:59,873 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@127bacd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:05:59, skipping insertion in model container [2021-10-28 09:05:59,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:05:59,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:59" (3/3) ... [2021-10-28 09:05:59,876 INFO L389 chiAutomizerObserver]: Analyzing ICFG PastaC9.c [2021-10-28 09:05:59,926 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:05:59,926 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:05:59,926 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:05:59,926 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:05:59,926 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:05:59,927 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:05:59,927 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:05:59,927 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:05:59,944 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-28 09:05:59,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:05:59,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:05:59,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:05:59,973 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:05:59,974 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:05:59,974 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:05:59,974 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) [2021-10-28 09:05:59,975 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:05:59,975 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:05:59,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:05:59,976 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 09:05:59,976 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:05:59,984 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L14-2true [2021-10-28 09:05:59,985 INFO L793 eck$LassoCheckResult]: Loop: 8#L14-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L14true assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 8#L14-2true [2021-10-28 09:05:59,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:05:59,992 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 09:06:00,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:00,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388993432] [2021-10-28 09:06:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:00,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,099 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,121 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:00,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:00,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2021-10-28 09:06:00,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:00,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641138188] [2021-10-28 09:06:00,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:00,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:00,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,148 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:00,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,168 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:00,171 INFO L85 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2021-10-28 09:06:00,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:00,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806479992] [2021-10-28 09:06:00,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:00,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,196 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:00,213 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:00,420 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:00,421 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:00,421 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:00,421 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:00,422 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:06:00,422 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,422 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:00,422 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:00,422 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2021-10-28 09:06:00,423 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:00,423 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:00,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:00,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:00,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:00,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:00,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:00,677 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:00,677 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:06:00,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:00,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:00,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:06:00,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:00,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:00,736 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:00,736 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:00,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:00,775 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:00,780 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:00,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:00,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:00,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:06:00,812 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:00,812 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:00,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:00,850 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:00,854 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:00,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:00,864 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:00,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:06:00,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:00,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=41} Honda state: {ULTIMATE.start_main_#t~nondet2=41} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:00,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:00,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:00,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:00,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:00,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:00,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:06:00,981 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-28 09:06:00,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:00,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:00,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:00,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:06:00,987 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:06:00,988 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:01,036 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:06:01,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:01,043 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:01,044 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:01,044 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:01,044 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:01,044 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:06:01,044 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,044 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:01,045 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:01,045 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration1_Loop [2021-10-28 09:06:01,045 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:01,045 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:01,048 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,206 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:01,212 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:06:01,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:06:01,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:01,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:01,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:01,243 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:01,243 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:01,256 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:06:01,256 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:06:01,284 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:01,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-10-28 09:06:01,325 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:06:01,330 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:01,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:01,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:01,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:01,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:01,345 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:06:01,345 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:06:01,380 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:01,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:01,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,445 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:01,456 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:01,456 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:01,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:01,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:01,457 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:01,459 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:01,459 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:01,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:06:01,475 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:01,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:01,524 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,530 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:01,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:01,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:01,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:01,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:01,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:01,555 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:01,555 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:01,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:06:01,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:06:01,583 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:06:01,583 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:06:01,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:01,587 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:01,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:06:01,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:06:01,589 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:06:01,589 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:06:01,589 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-28 09:06:01,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:01,621 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:06:01,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:01,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:01,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:01,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:01,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:06:01,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:01,719 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:06:01,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:01,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 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). 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) Result 28 states and 35 transitions. Complement of second has 7 states. [2021-10-28 09:06:01,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-10-28 09:06:01,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 09:06:01,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:01,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 3 letters. Loop has 2 letters. [2021-10-28 09:06:01,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:01,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 1 letters. Loop has 4 letters. [2021-10-28 09:06:01,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:01,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2021-10-28 09:06:01,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:06:01,794 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2021-10-28 09:06:01,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 09:06:01,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-10-28 09:06:01,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-10-28 09:06:01,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:06:01,796 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-10-28 09:06:01,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-10-28 09:06:01,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-10-28 09:06:01,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:01,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-10-28 09:06:01,822 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:06:01,822 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-10-28 09:06:01,822 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:06:01,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-10-28 09:06:01,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:06:01,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:06:01,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:06:01,823 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-28 09:06:01,823 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:06:01,824 INFO L791 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 72#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 73#L14 [2021-10-28 09:06:01,824 INFO L793 eck$LassoCheckResult]: Loop: 73#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 74#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 73#L14 [2021-10-28 09:06:01,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:01,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 09:06:01,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:01,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462632867] [2021-10-28 09:06:01,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:01,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:01,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,836 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,841 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:01,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:01,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2021-10-28 09:06:01,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:01,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810040749] [2021-10-28 09:06:01,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:01,843 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,851 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,857 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:01,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:01,858 INFO L85 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2021-10-28 09:06:01,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:01,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275035338] [2021-10-28 09:06:01,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:01,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:01,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,867 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:01,875 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:01,926 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:01,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:01,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:01,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:01,926 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:06:01,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:01,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:01,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:01,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2021-10-28 09:06:01,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:01,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:01,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,950 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:01,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,052 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:02,054 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:06:02,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,056 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:06:02,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:02,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:02,124 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: [] [2021-10-28 09:06:02,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,152 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:06:02,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:02,162 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,192 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:02,192 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=59, ULTIMATE.start_main_#t~nondet2=59} Honda state: {ULTIMATE.start_main_~random~0=59, ULTIMATE.start_main_#t~nondet2=59} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:02,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-10-28 09:06:02,226 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,228 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:06:02,234 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:02,234 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,251 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:02,251 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: [] [2021-10-28 09:06:02,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2021-10-28 09:06:02,282 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,283 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:06:02,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:02,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,322 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:06:02,322 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:06:02,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,369 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,370 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:02,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:06:02,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,460 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:06:02,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:02,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:06:02,568 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:06:02,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,573 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:02,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:02,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:02,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:02,573 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:06:02,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,573 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:02,573 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:02,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration2_Loop [2021-10-28 09:06:02,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:02,574 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:02,576 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:02,682 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:02,682 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:06:02,682 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,696 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:06:02,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:02,710 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:02,710 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:02,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:02,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:02,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:06:02,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:06:02,735 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:02,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,767 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,776 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:06:02,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:02,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:02,806 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:02,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:02,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:02,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:02,808 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:02,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:02,817 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:02,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2021-10-28 09:06:02,841 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,842 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:06:02,849 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:02,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:02,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:02,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:02,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:02,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-28 09:06:02,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-28 09:06:02,903 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:02,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:02,950 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:02,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:02,952 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:02,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:02,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:02,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:02,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:02,975 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:02,975 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:02,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:02,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:02,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:06:02,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:06:03,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:03,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,023 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:06:03,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:03,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:03,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:03,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:03,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:03,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:03,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:03,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:03,040 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:06:03,054 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 09:06:03,054 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:06:03,054 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,055 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:06:03,057 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:06:03,057 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:06:03,057 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:06:03,058 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:06:03,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:06:03,082 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:06:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:03,159 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:06:03,160 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,179 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 19 transitions. Complement of second has 5 states. [2021-10-28 09:06:03,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:03,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 09:06:03,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-28 09:06:03,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:03,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:06:03,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:03,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-28 09:06:03,183 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:03,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-10-28 09:06:03,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:06:03,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 9 states and 12 transitions. [2021-10-28 09:06:03,185 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-10-28 09:06:03,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2021-10-28 09:06:03,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2021-10-28 09:06:03,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:06:03,186 INFO L681 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2021-10-28 09:06:03,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2021-10-28 09:06:03,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 7. [2021-10-28 09:06:03,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 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) [2021-10-28 09:06:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2021-10-28 09:06:03,188 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:06:03,188 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2021-10-28 09:06:03,189 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:06:03,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2021-10-28 09:06:03,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-28 09:06:03,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:06:03,190 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:06:03,190 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2021-10-28 09:06:03,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-28 09:06:03,191 INFO L791 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 126#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 129#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 130#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 [2021-10-28 09:06:03,191 INFO L793 eck$LassoCheckResult]: Loop: 127#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 128#L14-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 127#L14 [2021-10-28 09:06:03,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2021-10-28 09:06:03,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:03,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422915277] [2021-10-28 09:06:03,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:03,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,201 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,210 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:03,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2021-10-28 09:06:03,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:03,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262070571] [2021-10-28 09:06:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:03,211 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:03,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,217 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:03,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,230 INFO L85 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 1 times [2021-10-28 09:06:03,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:06:03,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478874704] [2021-10-28 09:06:03,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:06:03,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:06:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,239 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:06:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:06:03,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:06:03,315 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:03,315 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:03,316 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:03,316 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:03,316 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:06:03,316 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,316 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:03,316 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:03,316 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2021-10-28 09:06:03,316 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:03,316 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:03,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,405 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:03,405 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:06:03,405 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,408 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,417 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:06:03,417 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:03,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:06:03,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:03,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,484 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,488 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:06:03,488 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:06:03,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:06:03,619 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:06:03,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:03,627 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:06:03,628 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:06:03,628 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:06:03,628 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:06:03,628 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:06:03,628 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,628 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:06:03,628 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:06:03,628 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC9.c_Iteration3_Loop [2021-10-28 09:06:03,628 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:06:03,629 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:06:03,630 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 09:06:03,716 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:06:03,716 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:06:03,717 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,718 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,726 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:06:03,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:06:03,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:06:03,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:06:03,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:06:03,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:06:03,739 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:06:03,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:06:03,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:06:03,751 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:06:03,757 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 09:06:03,758 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 09:06:03,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:06:03,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:06:03,760 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:06:03,763 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:06:03,763 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:06:03,763 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:06:03,764 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 09:06:03,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:06:03,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:03,810 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:06:03,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:03,883 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:06:03,883 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,903 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10 states and 13 transitions. Complement of second has 5 states. [2021-10-28 09:06:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:03,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 09:06:03,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:06:03,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:03,905 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:06:03,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:03,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:06:03,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:03,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:03,963 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-28 09:06:03,963 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,979 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10 states and 13 transitions. Complement of second has 5 states. [2021-10-28 09:06:03,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2021-10-28 09:06:03,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:06:03,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:03,981 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:06:03,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:06:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:04,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 09:06:04,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:06:04,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:06:04,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:06:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:06:04,052 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 2 loop predicates [2021-10-28 09:06:04,052 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:04,069 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 10 states and 13 transitions. Complement of second has 4 states. [2021-10-28 09:06:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:06:04,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:06:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2021-10-28 09:06:04,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-28 09:06:04,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:04,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2021-10-28 09:06:04,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:04,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2021-10-28 09:06:04,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:06:04,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2021-10-28 09:06:04,073 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:06:04,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2021-10-28 09:06:04,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:06:04,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:06:04,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:06:04,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:06:04,074 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:04,074 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:04,074 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:06:04,074 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:06:04,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:06:04,074 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:06:04,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:06:04,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:06:04 BoogieIcfgContainer [2021-10-28 09:06:04,082 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:06:04,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:06:04,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:06:04,083 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:06:04,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:05:59" (3/4) ... [2021-10-28 09:06:04,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:06:04,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:06:04,090 INFO L168 Benchmark]: Toolchain (without parser) took 4807.42 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 71.4 MB in the beginning and 47.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:04,091 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:04,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.17 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 77.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:04,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.50 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 76.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:04,093 INFO L168 Benchmark]: Boogie Preprocessor took 19.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:04,094 INFO L168 Benchmark]: RCFGBuilder took 251.04 ms. Allocated memory is still 100.7 MB. Free memory was 75.7 MB in the beginning and 68.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:04,095 INFO L168 Benchmark]: BuchiAutomizer took 4217.28 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.0 MB in the beginning and 47.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:06:04,095 INFO L168 Benchmark]: Witness Printer took 5.28 ms. Allocated memory is still 121.6 MB. Free memory was 47.3 MB in the beginning and 47.1 MB in the end (delta: 142.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:06:04,099 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 100.7 MB. Free memory is still 55.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.17 ms. Allocated memory is still 100.7 MB. Free memory was 71.4 MB in the beginning and 77.8 MB in the end (delta: -6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.50 ms. Allocated memory is still 100.7 MB. Free memory was 77.8 MB in the beginning and 76.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.94 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 75.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 251.04 ms. Allocated memory is still 100.7 MB. Free memory was 75.7 MB in the beginning and 68.0 MB in the end (delta: 7.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4217.28 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 68.0 MB in the beginning and 47.3 MB in the end (delta: 20.7 MB). Peak memory consumption was 43.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.28 ms. Allocated memory is still 121.6 MB. Free memory was 47.3 MB in the beginning and 47.1 MB in the end (delta: 142.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. One nondeterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 22 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 31 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf100 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 71ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:06:04,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:06:04,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-28 09:06:04,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_485a5a50-e4ad-4c3b-94e0-b6fbea5799d4/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...