./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter1.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_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/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_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/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_0325c989-9b11-4e2f-80ae-abc35ebc3255/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 de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:51:44,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:51:44,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:51:44,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:51:44,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:51:44,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:51:44,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:51:44,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:51:44,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:51:44,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:51:44,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:51:44,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:51:44,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:51:44,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:51:44,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:51:44,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:51:44,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:51:44,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:51:44,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:51:44,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:51:44,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:51:44,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:51:44,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:51:44,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:51:44,699 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:51:44,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:51:44,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:51:44,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:51:44,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:51:44,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:51:44,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:51:44,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:51:44,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:51:44,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:51:44,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:51:44,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:51:44,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:51:44,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:51:44,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:51:44,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:51:44,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:51:44,716 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 09:51:44,751 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:51:44,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:51:44,752 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:51:44,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:51:44,753 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:51:44,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:51:44,754 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:51:44,754 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:51:44,755 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:51:44,755 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:51:44,755 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:51:44,755 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:51:44,756 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:51:44,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:51:44,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:51:44,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:51:44,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:51:44,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:51:44,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:51:44,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:51:44,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:51:44,758 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:51:44,759 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:51:44,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:51:44,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:51:44,760 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:51:44,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:51:44,760 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:51:44,761 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:51:44,762 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:51:44,762 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_0325c989-9b11-4e2f-80ae-abc35ebc3255/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de5b7f1cccf5c7fe435559014125bbfd73538586d5303d45f8d606cb31a4b74b [2021-10-28 09:51:45,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:51:45,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:51:45,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:51:45,137 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:51:45,138 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:51:45,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-numeric/rec_counter1.c [2021-10-28 09:51:45,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/data/c67928581/b9de71d2fcee411a8e1792cee42c63df/FLAGb6b1861ab [2021-10-28 09:51:45,910 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:51:45,911 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/sv-benchmarks/c/termination-numeric/rec_counter1.c [2021-10-28 09:51:45,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/data/c67928581/b9de71d2fcee411a8e1792cee42c63df/FLAGb6b1861ab [2021-10-28 09:51:46,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/data/c67928581/b9de71d2fcee411a8e1792cee42c63df [2021-10-28 09:51:46,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:51:46,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:51:46,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:46,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:51:46,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:51:46,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6559414b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46, skipping insertion in model container [2021-10-28 09:51:46,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:51:46,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:51:46,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:46,493 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:51:46,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:51:46,520 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:51:46,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46 WrapperNode [2021-10-28 09:51:46,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:51:46,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:46,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:51:46,523 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:51:46,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:51:46,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:51:46,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:51:46,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:51:46,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:51:46,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:51:46,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:51:46,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:51:46,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (1/1) ... [2021-10-28 09:51:46,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:46,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:46,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:46,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:51:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-10-28 09:51:46,670 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-10-28 09:51:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:51:46,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:51:46,857 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:51:46,857 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 09:51:46,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:46 BoogieIcfgContainer [2021-10-28 09:51:46,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:51:46,861 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:51:46,861 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:51:46,865 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:51:46,866 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:46,867 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:51:46" (1/3) ... [2021-10-28 09:51:46,869 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4afafb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:51:46, skipping insertion in model container [2021-10-28 09:51:46,869 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:46,869 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:51:46" (2/3) ... [2021-10-28 09:51:46,870 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4afafb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:51:46, skipping insertion in model container [2021-10-28 09:51:46,870 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:51:46,870 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:46" (3/3) ... [2021-10-28 09:51:46,872 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_counter1.c [2021-10-28 09:51:46,925 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:51:46,926 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:51:46,926 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:51:46,926 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:51:46,926 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:51:46,927 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:51:46,927 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:51:46,927 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:51:46,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:46,988 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 09:51:46,989 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:46,989 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:46,996 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:51:46,996 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:51:46,996 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:51:46,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:47,016 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2021-10-28 09:51:47,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:47,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:47,017 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 09:51:47,017 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 09:51:47,024 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L18true assume !(main_~i~0 <= 0); 15#L20true call main_#t~ret3 := rec(main_~i~0);< 11#recENTRYtrue [2021-10-28 09:51:47,025 INFO L793 eck$LassoCheckResult]: Loop: 11#recENTRYtrue ~a := #in~a; 6#L5true assume !(0 == ~a); 10#L8true call #t~ret0 := rec(~a - 1);< 11#recENTRYtrue [2021-10-28 09:51:47,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash 51805, now seen corresponding path program 1 times [2021-10-28 09:51:47,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:47,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752890511] [2021-10-28 09:51:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,171 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,218 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:47,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:47,236 INFO L85 PathProgramCache]: Analyzing trace with hash 29948, now seen corresponding path program 1 times [2021-10-28 09:51:47,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:47,237 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914524406] [2021-10-28 09:51:47,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:47,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,268 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:47,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:47,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1543322912, now seen corresponding path program 1 times [2021-10-28 09:51:47,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:47,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75322870] [2021-10-28 09:51:47,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:47,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,295 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:47,318 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:47,508 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:47,509 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:47,509 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:47,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:47,509 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:51:47,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:47,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:47,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:47,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Loop [2021-10-28 09:51:47,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:47,511 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:47,532 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 09:51:47,540 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 09:51:47,549 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 09:51:47,553 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 09:51:47,558 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 09:51:47,568 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 09:51:47,578 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 09:51:47,695 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:47,696 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:51:47,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:47,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:47,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:47,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:47,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:47,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 09:51:47,749 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:47,749 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:47,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:47,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:47,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:47,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:47,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:47,799 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:47,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 09:51:47,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:47,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:47,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:47,868 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:47,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:47,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:47,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:47,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 09:51:47,904 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:47,904 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:47,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:47,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:47,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:47,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:47,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:47,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:47,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 09:51:47,984 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:47,984 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,021 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 09:51:48,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,054 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,054 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 09:51:48,100 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,100 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,167 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,171 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 09:51:48,177 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:51:48,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,222 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,222 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-1} Honda state: {rec_#in~a=-1} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 3, 15] Nus: [0, 1] [2021-10-28 09:51:48,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,256 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,257 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 09:51:48,263 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,263 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,373 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:48,373 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:48,382 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:48,386 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:48,386 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:51:48,387 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,387 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:48,387 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:48,387 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2021-10-28 09:51:48,387 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:48,388 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:48,391 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 09:51:48,396 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 09:51:48,399 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 09:51:48,408 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 09:51:48,411 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 09:51:48,414 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 09:51:48,419 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 09:51:48,426 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 09:51:48,429 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 09:51:48,432 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 09:51:48,435 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 09:51:48,439 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 09:51:48,444 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 09:51:48,569 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:48,570 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:51:48,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,584 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 09:51:48,588 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,625 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,671 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,678 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,678 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 09:51:48,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,705 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,752 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,757 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 09:51:48,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,776 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,800 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,801 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 09:51:48,803 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,803 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,813 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,813 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3=0} Honda state: {ULTIMATE.start_main_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,840 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 09:51:48,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,855 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,878 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 09:51:48,882 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,892 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,892 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-28 09:51:48,913 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,914 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 09:51:48,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:48,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:48,967 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:48,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:48,968 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:48,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 09:51:48,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:48,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:48,993 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:48,993 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:49,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,018 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 09:51:49,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:49,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,038 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:49,038 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:49,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,061 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 09:51:49,067 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:49,067 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,079 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:49,079 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:49,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,104 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 09:51:49,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:49,111 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:49,123 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4=0} Honda state: {ULTIMATE.start_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:49,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,150 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 09:51:49,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:49,152 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,162 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 09:51:49,162 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1=0} Honda state: {ULTIMATE.start_main_~res~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-28 09:51:49,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,186 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 09:51:49,189 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:49,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2021-10-28 09:51:49,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,231 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 09:51:49,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:51:49,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:49,314 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:51:49,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,317 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:49,317 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:49,318 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:49,318 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:49,318 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:51:49,318 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,318 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:49,318 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:49,318 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration1_Lasso [2021-10-28 09:51:49,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:49,319 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:49,321 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 09:51:49,325 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 09:51:49,329 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 09:51:49,331 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 09:51:49,336 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 09:51:49,339 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 09:51:49,345 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 09:51:49,348 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 09:51:49,352 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 09:51:49,354 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 09:51:49,358 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 09:51:49,363 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 09:51:49,372 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 09:51:49,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:49,484 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:51:49,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,492 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,497 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 09:51:49,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,508 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 09:51:49,544 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,588 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,589 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,592 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 09:51:49,602 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,603 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 09:51:49,615 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,660 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,662 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 09:51:49,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,673 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,673 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,674 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 09:51:49,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,749 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 09:51:49,751 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 09:51:49,759 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,760 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,760 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,760 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,761 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,774 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,799 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 09:51:49,802 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 09:51:49,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,811 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,826 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,852 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 09:51:49,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-28 09:51:49,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,865 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,866 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,866 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,891 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:49,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:49,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:49,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:49,940 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:49,949 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 09:51:49,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:49,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:49,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:49,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:49,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:49,963 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:49,963 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:49,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 09:51:49,979 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:50,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2021-10-28 09:51:50,009 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,010 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 09:51:50,011 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 09:51:50,020 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:50,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:50,020 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:50,020 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:50,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:50,021 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:50,021 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:50,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:50,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:50,047 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,048 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 09:51:50,049 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 09:51:50,060 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:50,061 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:50,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:50,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:50,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:50,062 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:50,062 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:50,079 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:50,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 09:51:50,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,107 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,108 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 09:51:50,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 09:51:50,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:50,118 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:50,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:50,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:50,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:50,119 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:50,119 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:50,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:50,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 09:51:50,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,149 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,151 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 09:51:50,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 09:51:50,162 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:50,162 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:50,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:50,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:50,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:50,163 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:50,163 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:50,194 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:50,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:50,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,219 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 09:51:50,225 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 09:51:50,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:50,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:50,235 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 09:51:50,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:50,250 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 09:51:50,250 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 09:51:50,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:51:50,307 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 09:51:50,307 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 09:51:50,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:50,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:50,324 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:50,360 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:51:50,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 09:51:50,385 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 09:51:50,385 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:51:50,386 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2021-10-28 09:51:50,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:50,445 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 09:51:50,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:50,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:51:50,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:50,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 09:51:50,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:50,706 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 09:51:50,728 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2021-10-28 09:51:50,732 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:50,925 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 39 transitions. Complement of second has 13 states. [2021-10-28 09:51:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-28 09:51:50,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:51:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 09:51:50,931 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 09:51:50,932 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:50,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 09:51:50,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:50,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 09:51:50,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:50,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2021-10-28 09:51:50,945 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:51:50,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 17 states and 22 transitions. [2021-10-28 09:51:50,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2021-10-28 09:51:50,959 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2021-10-28 09:51:50,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2021-10-28 09:51:50,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:51:50,961 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-10-28 09:51:50,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2021-10-28 09:51:50,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2021-10-28 09:51:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:51:50,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-28 09:51:50,997 INFO L704 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 09:51:50,997 INFO L587 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-28 09:51:50,997 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:51:50,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2021-10-28 09:51:51,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:51:51,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:51,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:51,002 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:51,002 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:51:51,003 INFO L791 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 113#L18 assume !(main_~i~0 <= 0); 114#L20 call main_#t~ret3 := rec(main_~i~0);< 120#recENTRY ~a := #in~a; 121#L5 assume !(0 == ~a); 116#L8 call #t~ret0 := rec(~a - 1);< 119#recENTRY ~a := #in~a; 122#L5 assume 0 == ~a;#res := 0; 123#recFINAL assume true; 125#recEXIT >#34#return; 115#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 117#L10-2 [2021-10-28 09:51:51,004 INFO L793 eck$LassoCheckResult]: Loop: 117#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 117#L10-2 [2021-10-28 09:51:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:51,004 INFO L85 PathProgramCache]: Analyzing trace with hash -396516555, now seen corresponding path program 1 times [2021-10-28 09:51:51,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:51,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791586409] [2021-10-28 09:51:51,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:51,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:51,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:51,053 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2021-10-28 09:51:51,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:51,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808000793] [2021-10-28 09:51:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:51,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:51,064 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:51,071 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:51,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash 592888698, now seen corresponding path program 1 times [2021-10-28 09:51:51,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:51,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645966811] [2021-10-28 09:51:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:51,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:51,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 09:51:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 09:51:51,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:51:51,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645966811] [2021-10-28 09:51:51,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645966811] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:51:51,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:51:51,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:51:51,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526932556] [2021-10-28 09:51:51,254 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:51,254 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:51,254 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:51,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:51,255 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:51:51,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,255 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:51,255 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:51,255 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2021-10-28 09:51:51,255 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:51,255 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:51,256 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 09:51:51,274 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 09:51:51,303 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2021-10-28 09:51:51,321 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:51,321 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:51:51,321 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:51,329 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:51,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 09:51:51,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:51,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:51,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:51,385 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:51,386 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:51,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 09:51:51,391 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:51:51,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:51,431 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:51:51,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:51,433 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:51,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:51,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:51,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:51,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:51:51,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:51,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:51,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration2_Loop [2021-10-28 09:51:51,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:51,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:51,435 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 09:51:51,445 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 09:51:51,474 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:51,475 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:51:51,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:51,477 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:51,485 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 09:51:51,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 09:51:51,497 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:51,497 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:51,497 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:51,498 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:51,498 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:51,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:51,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:51,527 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 09:51:51,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:51,566 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:51,567 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:51,578 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 09:51:51,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:51,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:51,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:51,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:51,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:51,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:51,591 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:51,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 09:51:51,607 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:51:51,612 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 09:51:51,612 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:51:51,612 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:51,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:51,615 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:51,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:51:51,617 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:51:51,618 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:51:51,618 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-10-28 09:51:51,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-10-28 09:51:51,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:51,650 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:51:51,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:51,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 09:51:51,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:51,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:51:51,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:51,891 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 09:51:51,892 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 09:51:51,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:51:51,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 45 states and 64 transitions. Complement of second has 12 states. [2021-10-28 09:51:51,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:51:51,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:51:51,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-10-28 09:51:51,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-28 09:51:51,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:51,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-28 09:51:51,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:51,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 09:51:51,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:51,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 64 transitions. [2021-10-28 09:51:51,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:51:51,970 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 23 states and 30 transitions. [2021-10-28 09:51:51,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2021-10-28 09:51:51,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:51:51,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2021-10-28 09:51:51,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:51:51,971 INFO L681 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-28 09:51:51,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2021-10-28 09:51:51,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2021-10-28 09:51:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:51:51,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-10-28 09:51:51,978 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-10-28 09:51:51,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:51:51,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:51:51,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:51:51,990 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 09:51:52,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:51:52,015 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2021-10-28 09:51:52,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:51:52,016 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2021-10-28 09:51:52,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:51:52,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 26 transitions. [2021-10-28 09:51:52,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 09:51:52,026 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 09:51:52,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2021-10-28 09:51:52,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 09:51:52,026 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 09:51:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2021-10-28 09:51:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-28 09:51:52,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 09:51:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-28 09:51:52,036 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-28 09:51:52,037 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-28 09:51:52,037 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:51:52,037 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2021-10-28 09:51:52,038 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 09:51:52,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:51:52,038 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:51:52,040 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 09:51:52,040 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 09:51:52,041 INFO L791 eck$LassoCheckResult]: Stem: 288#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 286#L18 assume !(main_~i~0 <= 0); 287#L20 call main_#t~ret3 := rec(main_~i~0);< 294#recENTRY ~a := #in~a; 295#L5 assume !(0 == ~a); 290#L8 call #t~ret0 := rec(~a - 1);< 293#recENTRY ~a := #in~a; 296#L5 assume !(0 == ~a); 291#L8 call #t~ret0 := rec(~a - 1);< 293#recENTRY ~a := #in~a; 297#L5 assume 0 == ~a;#res := 0; 298#recFINAL assume true; 304#recEXIT >#34#return; 303#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 299#L10-2 assume !(~rescopy~0 > 0); 300#L10-3 #res := 1 + ~res~0; 302#recFINAL assume true; 301#recEXIT >#34#return; 289#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 292#L10-2 [2021-10-28 09:51:52,041 INFO L793 eck$LassoCheckResult]: Loop: 292#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 292#L10-2 [2021-10-28 09:51:52,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:52,041 INFO L85 PathProgramCache]: Analyzing trace with hash 404659162, now seen corresponding path program 1 times [2021-10-28 09:51:52,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:52,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510697916] [2021-10-28 09:51:52,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:52,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,077 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:52,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:52,105 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2021-10-28 09:51:52,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:52,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438107105] [2021-10-28 09:51:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:52,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,118 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:52,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:52,127 INFO L85 PathProgramCache]: Analyzing trace with hash -340467851, now seen corresponding path program 1 times [2021-10-28 09:51:52,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:51:52,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597666712] [2021-10-28 09:51:52,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:51:52,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:51:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:51:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:51:52,155 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:51:52,169 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:52,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:52,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:52,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:52,169 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 09:51:52,170 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:52,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:52,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2021-10-28 09:51:52,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:52,170 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:52,171 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 09:51:52,177 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 09:51:52,195 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:52,195 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 09:51:52,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:52,197 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:52,199 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 09:51:52,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:52,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 09:51:52,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:52,272 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:52,276 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:52,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 09:51:52,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 09:51:52,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 09:51:52,331 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 09:51:52,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:52,333 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 09:51:52,334 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 09:51:52,334 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 09:51:52,334 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 09:51:52,334 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 09:51:52,334 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,334 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 09:51:52,334 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 09:51:52,334 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter1.c_Iteration3_Loop [2021-10-28 09:51:52,334 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 09:51:52,334 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 09:51:52,335 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 09:51:52,346 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 09:51:52,365 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 09:51:52,365 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 09:51:52,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:52,367 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:52,376 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 09:51:52,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 09:51:52,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 09:51:52,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 09:51:52,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 09:51:52,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 09:51:52,389 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 09:51:52,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 09:51:52,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 09:51:52,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 09:51:52,411 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 09:51:52,411 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 09:51:52,411 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:51:52,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:51:52,414 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:51:52,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 09:51:52,417 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 09:51:52,417 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 09:51:52,417 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-10-28 09:51:52,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 09:51:52,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-10-28 09:51:52,457 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 09:51:52,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:52,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:52,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:51:52,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:52,907 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:51:52,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:52,908 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 09:51:52,909 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 09:51:52,909 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:52,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 25 states and 29 transitions. Complement of second has 7 states. [2021-10-28 09:51:52,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:51:52,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:52,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 09:51:52,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 09:51:52,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:52,962 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:51:52,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:53,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:51:53,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:53,308 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:51:53,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:53,309 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 09:51:53,310 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 09:51:53,310 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:53,358 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 25 states and 29 transitions. Complement of second has 7 states. [2021-10-28 09:51:53,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:51:53,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:53,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 09:51:53,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 09:51:53,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:53,361 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 09:51:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:51:53,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:53,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 09:51:53,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:53,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:53,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 09:51:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:51:53,753 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 09:51:53,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:51:53,754 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 09:51:53,755 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2021-10-28 09:51:53,755 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:53,796 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 22 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Result 32 states and 40 transitions. Complement of second has 9 states. [2021-10-28 09:51:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2021-10-28 09:51:53,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-10-28 09:51:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 09:51:53,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 09:51:53,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:53,798 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 20 letters. Loop has 1 letters. [2021-10-28 09:51:53,799 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:53,799 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 2 letters. [2021-10-28 09:51:53,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 09:51:53,800 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2021-10-28 09:51:53,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:51:53,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-10-28 09:51:53,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 09:51:53,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 09:51:53,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 09:51:53,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:51:53,805 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:51:53,805 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:51:53,805 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:51:53,805 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 09:51:53,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:51:53,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 09:51:53,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 09:51:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:51:53 BoogieIcfgContainer [2021-10-28 09:51:53,812 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:51:53,813 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:51:53,813 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:51:53,813 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:51:53,814 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:51:46" (3/4) ... [2021-10-28 09:51:53,817 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:51:53,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:51:53,819 INFO L168 Benchmark]: Toolchain (without parser) took 7543.46 ms. Allocated memory was 134.2 MB in the beginning and 192.9 MB in the end (delta: 58.7 MB). Free memory was 105.9 MB in the beginning and 149.7 MB in the end (delta: -43.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:53,820 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 134.2 MB. Free memory was 87.8 MB in the beginning and 87.8 MB in the end (delta: 56.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:53,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.74 ms. Allocated memory is still 134.2 MB. Free memory was 105.7 MB in the beginning and 108.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:53,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:53,822 INFO L168 Benchmark]: Boogie Preprocessor took 19.63 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 106.6 MB in the end (delta: 764.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:53,822 INFO L168 Benchmark]: RCFGBuilder took 283.62 ms. Allocated memory is still 134.2 MB. Free memory was 106.3 MB in the beginning and 98.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:53,823 INFO L168 Benchmark]: BuchiAutomizer took 6951.31 ms. Allocated memory was 134.2 MB in the beginning and 192.9 MB in the end (delta: 58.7 MB). Free memory was 98.2 MB in the beginning and 149.7 MB in the end (delta: -51.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:53,823 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 192.9 MB. Free memory is still 149.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:53,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 134.2 MB. Free memory was 87.8 MB in the beginning and 87.8 MB in the end (delta: 56.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 243.74 ms. Allocated memory is still 134.2 MB. Free memory was 105.7 MB in the beginning and 108.7 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.70 ms. Allocated memory is still 134.2 MB. Free memory was 108.7 MB in the beginning and 107.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.63 ms. Allocated memory is still 134.2 MB. Free memory was 107.3 MB in the beginning and 106.6 MB in the end (delta: 764.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 283.62 ms. Allocated memory is still 134.2 MB. Free memory was 106.3 MB in the beginning and 98.4 MB in the end (delta: 7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6951.31 ms. Allocated memory was 134.2 MB in the beginning and 192.9 MB in the end (delta: 58.7 MB). Free memory was 98.2 MB in the beginning and 149.7 MB in the end (delta: -51.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 192.9 MB. Free memory is still 149.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 4.5s. Construction of modules took 0.1s. Büchi inclusion checks took 2.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 19 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 78 SDslu, 51 SDs, 0 SdLazy, 50 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf124 smp100 tf108 neg97 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 167ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 09:51:53,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0325c989-9b11-4e2f-80ae-abc35ebc3255/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...