./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter3.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_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/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_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/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_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/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 d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:42:28,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:42:28,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:42:28,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:42:28,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:42:28,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:42:28,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:42:28,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:42:28,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:42:28,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:42:28,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:42:28,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:42:28,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:42:28,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:42:28,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:42:28,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:42:28,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:42:28,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:42:28,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:42:28,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:42:28,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:42:28,900 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:42:28,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:42:28,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:42:28,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:42:28,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:42:28,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:42:28,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:42:28,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:42:28,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:42:28,928 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:42:28,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:42:28,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:42:28,933 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:42:28,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:42:28,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:42:28,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:42:28,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:42:28,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:42:28,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:42:28,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:42:28,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 08:42:29,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:42:29,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:42:29,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:42:29,005 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:42:29,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:42:29,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:42:29,007 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:42:29,007 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 08:42:29,007 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 08:42:29,008 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 08:42:29,009 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 08:42:29,010 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 08:42:29,010 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 08:42:29,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:42:29,010 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 08:42:29,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:42:29,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:42:29,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 08:42:29,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 08:42:29,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 08:42:29,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:42:29,012 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 08:42:29,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:42:29,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 08:42:29,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:42:29,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:42:29,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:42:29,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:42:29,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:42:29,018 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 08:42:29,019 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_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b4f33979632a981e739ff06b52fe01aa9fb175d5e5193b145052887f22f8a3 [2021-10-28 08:42:29,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:42:29,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:42:29,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:42:29,426 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:42:29,427 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:42:29,428 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/termination-numeric/rec_counter3.c [2021-10-28 08:42:29,498 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/data/5cf829020/91e529eb99994353877e78c0f9ca0c2d/FLAG6320824e5 [2021-10-28 08:42:30,044 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:42:30,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/sv-benchmarks/c/termination-numeric/rec_counter3.c [2021-10-28 08:42:30,052 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/data/5cf829020/91e529eb99994353877e78c0f9ca0c2d/FLAG6320824e5 [2021-10-28 08:42:30,401 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/data/5cf829020/91e529eb99994353877e78c0f9ca0c2d [2021-10-28 08:42:30,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:42:30,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:42:30,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:30,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:42:30,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:42:30,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6ed9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30, skipping insertion in model container [2021-10-28 08:42:30,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:42:30,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:42:30,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:30,652 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:42:30,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:42:30,683 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:42:30,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30 WrapperNode [2021-10-28 08:42:30,684 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:42:30,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:30,686 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:42:30,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:42:30,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:42:30,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:42:30,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:42:30,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:42:30,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:42:30,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:42:30,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:42:30,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:42:30,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (1/1) ... [2021-10-28 08:42:30,758 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:30,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:30,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:30,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 08:42:30,861 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-10-28 08:42:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-10-28 08:42:30,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:42:30,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:42:31,099 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:42:31,099 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 08:42:31,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:31 BoogieIcfgContainer [2021-10-28 08:42:31,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:42:31,103 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 08:42:31,103 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 08:42:31,108 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 08:42:31,109 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:31,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 08:42:30" (1/3) ... [2021-10-28 08:42:31,112 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e33fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:42:31, skipping insertion in model container [2021-10-28 08:42:31,112 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:31,112 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:42:30" (2/3) ... [2021-10-28 08:42:31,115 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e33fd0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 08:42:31, skipping insertion in model container [2021-10-28 08:42:31,115 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 08:42:31,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:31" (3/3) ... [2021-10-28 08:42:31,117 INFO L389 chiAutomizerObserver]: Analyzing ICFG rec_counter3.c [2021-10-28 08:42:31,189 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 08:42:31,190 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 08:42:31,190 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 08:42:31,190 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 08:42:31,190 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 08:42:31,191 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 08:42:31,191 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 08:42:31,191 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 08:42:31,217 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 08:42:31,242 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-28 08:42:31,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:31,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:31,251 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:42:31,251 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:42:31,252 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 08:42:31,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 08:42:31,255 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 5 [2021-10-28 08:42:31,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:31,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:31,255 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-28 08:42:31,255 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-28 08:42:31,261 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); 16#L20true call main_#t~ret3 := rec(main_~i~0);< 11#recENTRYtrue [2021-10-28 08:42:31,262 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 08:42:31,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash 51816, now seen corresponding path program 1 times [2021-10-28 08:42:31,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:31,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66606749] [2021-10-28 08:42:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:31,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,372 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:31,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:31,399 INFO L85 PathProgramCache]: Analyzing trace with hash 29959, now seen corresponding path program 1 times [2021-10-28 08:42:31,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:31,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051801386] [2021-10-28 08:42:31,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:31,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,418 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:31,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:31,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1543650624, now seen corresponding path program 1 times [2021-10-28 08:42:31,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:31,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402831255] [2021-10-28 08:42:31,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:31,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:31,454 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:31,578 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:31,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:31,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:31,579 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:31,579 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:42:31,580 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:31,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:31,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:31,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Loop [2021-10-28 08:42:31,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:31,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:31,601 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 08:42:31,609 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 08:42:31,613 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 08:42:31,618 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 08:42:31,622 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 08:42:31,626 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 08:42:31,638 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 08:42:31,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:31,782 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:42:31,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:31,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:31,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:31,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:31,816 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:31,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 08:42:31,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:31,841 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 08:42:31,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-28 08:42:31,866 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:31,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:31,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:31,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 08:42:31,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:31,872 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:31,882 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:31,883 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 08:42:31,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:31,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:31,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:31,925 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:31,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 08:42:31,930 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:31,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:31,946 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:31,946 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 08:42:31,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:31,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:31,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:31,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:31,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 08:42:31,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:31,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,014 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,014 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 08:42:32,059 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,061 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,068 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,068 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-28 08:42:32,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,092 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 08:42:32,117 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,118 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-28 08:42:32,124 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,179 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,180 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-28 08:42:32,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:42:32,183 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,233 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,233 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 08:42:32,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,262 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-28 08:42:32,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,277 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,277 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 08:42:32,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,366 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:32,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:32,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:32,367 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:32,367 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:42:32,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:32,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:32,368 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Lasso [2021-10-28 08:42:32,368 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:32,368 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:32,371 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 08:42:32,374 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 08:42:32,377 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 08:42:32,381 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 08:42:32,384 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 08:42:32,387 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 08:42:32,390 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 08:42:32,393 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 08:42:32,396 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 08:42:32,399 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 08:42:32,402 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 08:42:32,405 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 08:42:32,415 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 08:42:32,498 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:32,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:42:32,499 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,518 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-28 08:42:32,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,558 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,559 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 08:42:32,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,603 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-28 08:42:32,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,619 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,619 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 08:42:32,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,644 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,651 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-28 08:42:32,652 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,652 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,674 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,674 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 08:42:32,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,704 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,705 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-28 08:42:32,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,730 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,730 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 08:42:32,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,756 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-28 08:42:32,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,772 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,772 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 08:42:32,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,799 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,800 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-28 08:42:32,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,815 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,816 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 08:42:32,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,842 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,843 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-28 08:42:32,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,874 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,874 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 08:42:32,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:32,918 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:32,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:32,920 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:32,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-28 08:42:32,927 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:32,927 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:32,958 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:32,958 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 08:42:33,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,003 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-28 08:42:33,008 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:33,008 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:33,018 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:33,018 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 08:42:33,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-28 08:42:33,041 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,047 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-28 08:42:33,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:33,050 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:33,059 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:33,059 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 08:42:33,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,087 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,088 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-28 08:42:33,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:33,095 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:33,106 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-28 08:42:33,106 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 08:42:33,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2021-10-28 08:42:33,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,137 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-28 08:42:33,145 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:33,145 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:33,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,192 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-28 08:42:33,195 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:42:33,195 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:33,244 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:42:33,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,247 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:33,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:33,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:33,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:33,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:33,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:33,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:33,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration1_Lasso [2021-10-28 08:42:33,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:33,248 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:33,250 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 08:42:33,253 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 08:42:33,256 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 08:42:33,262 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 08:42:33,267 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 08:42:33,274 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 08:42:33,281 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 08:42:33,285 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 08:42:33,289 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 08:42:33,292 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 08:42:33,302 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 08:42:33,305 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 08:42:33,316 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 08:42:33,426 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:33,432 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:33,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,442 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,446 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 08:42:33,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,458 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,458 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,458 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,462 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-28 08:42:33,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,529 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,534 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,537 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 08:42:33,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,552 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,552 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-28 08:42:33,573 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,618 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,620 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,622 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 08:42:33,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-28 08:42:33,645 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2021-10-28 08:42:33,671 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,672 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-28 08:42:33,674 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 08:42:33,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,683 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,689 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,715 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-28 08:42:33,721 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 08:42:33,730 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,731 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,732 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,732 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,739 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,763 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,764 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,767 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 08:42:33,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-28 08:42:33,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,778 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,779 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,782 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2021-10-28 08:42:33,806 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,807 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-28 08:42:33,809 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 08:42:33,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,818 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,818 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,818 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,818 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,853 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,880 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,881 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-10-28 08:42:33,884 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 08:42:33,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,894 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,895 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:33,923 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,924 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-10-28 08:42:33,925 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 08:42:33,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,937 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,937 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:33,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2021-10-28 08:42:33,965 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:33,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:33,966 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:33,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-10-28 08:42:33,969 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 08:42:33,977 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:33,977 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:33,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:33,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:33,978 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:33,978 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:33,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:33,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:34,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2021-10-28 08:42:34,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:34,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:34,005 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:34,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-10-28 08:42:34,007 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 08:42:34,016 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:34,016 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:34,016 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:34,016 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:34,016 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:34,017 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:34,017 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:34,040 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:34,064 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2021-10-28 08:42:34,064 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:34,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:34,066 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:34,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2021-10-28 08:42:34,068 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 08:42:34,076 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:34,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:34,077 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-10-28 08:42:34,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:34,092 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2021-10-28 08:42:34,092 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-10-28 08:42:34,117 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:34,147 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-10-28 08:42:34,147 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2021-10-28 08:42:34,149 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:34,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:34,182 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:34,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2021-10-28 08:42:34,238 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:34,265 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2021-10-28 08:42:34,265 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:34,266 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 08:42:34,321 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:34,326 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2021-10-28 08:42:34,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:34,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:42:34,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:34,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-28 08:42:34,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:34,499 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 08:42:34,516 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 08:42:34,518 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 08:42:34,657 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 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 34 states and 42 transitions. Complement of second has 13 states. [2021-10-28 08:42:34,658 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 08:42:34,660 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 08:42:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2021-10-28 08:42:34,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-28 08:42:34,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:34,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-28 08:42:34,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:34,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-28 08:42:34,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:34,666 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 42 transitions. [2021-10-28 08:42:34,679 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:34,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 22 states and 29 transitions. [2021-10-28 08:42:34,687 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-28 08:42:34,687 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 08:42:34,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 29 transitions. [2021-10-28 08:42:34,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:34,688 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2021-10-28 08:42:34,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 29 transitions. [2021-10-28 08:42:34,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-10-28 08:42:34,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-10-28 08:42:34,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-10-28 08:42:34,736 INFO L704 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 08:42:34,736 INFO L587 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-10-28 08:42:34,736 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 08:42:34,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2021-10-28 08:42:34,738 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:34,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:34,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:34,739 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:34,739 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:34,740 INFO L791 eck$LassoCheckResult]: Stem: 115#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; 116#L18 assume !(main_~i~0 <= 0); 118#L20 call main_#t~ret3 := rec(main_~i~0);< 126#recENTRY ~a := #in~a; 117#L5 assume 0 == ~a;#res := 0; 119#recFINAL assume true; 132#recEXIT >#47#return; 128#L20-1 main_~res~1 := main_#t~ret3;havoc main_#t~ret3; 129#L21-2 [2021-10-28 08:42:34,740 INFO L793 eck$LassoCheckResult]: Loop: 129#L21-2 assume !!(main_~res~1 < 1); 129#L21-2 [2021-10-28 08:42:34,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:34,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1684481175, now seen corresponding path program 1 times [2021-10-28 08:42:34,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:34,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761774122] [2021-10-28 08:42:34,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:34,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:34,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:34,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:42:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:34,858 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 08:42:34,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:34,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761774122] [2021-10-28 08:42:34,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761774122] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:34,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:34,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:42:34,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640871977] [2021-10-28 08:42:34,863 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-28 08:42:34,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 1 times [2021-10-28 08:42:34,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:34,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515125018] [2021-10-28 08:42:34,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:34,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:34,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:34,872 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:34,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:34,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:34,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:42:34,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:42:34,897 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-10-28 08:42:34,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:34,951 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-10-28 08:42:34,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:42:34,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-10-28 08:42:34,959 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:34,960 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 20 transitions. [2021-10-28 08:42:34,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-28 08:42:34,961 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2021-10-28 08:42:34,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2021-10-28 08:42:34,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:34,962 INFO L681 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:42:34,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2021-10-28 08:42:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 08:42:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 12 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-10-28 08:42:34,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2021-10-28 08:42:34,973 INFO L704 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:42:34,973 INFO L587 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2021-10-28 08:42:34,973 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 08:42:34,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2021-10-28 08:42:34,977 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:34,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:34,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:34,979 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:34,979 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:34,980 INFO L791 eck$LassoCheckResult]: Stem: 169#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 170#L18 assume !(main_~i~0 <= 0); 173#L20 call main_#t~ret3 := rec(main_~i~0);< 180#recENTRY ~a := #in~a; 177#L5 assume !(0 == ~a); 172#L8 call #t~ret0 := rec(~a - 1);< 179#recENTRY ~a := #in~a; 175#L5 assume 0 == ~a;#res := 0; 176#recFINAL assume true; 183#recEXIT >#45#return; 178#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 171#L10-2 [2021-10-28 08:42:34,980 INFO L793 eck$LassoCheckResult]: Loop: 171#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 171#L10-2 [2021-10-28 08:42:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:34,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1511241834, now seen corresponding path program 1 times [2021-10-28 08:42:34,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:34,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564722793] [2021-10-28 08:42:34,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:34,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:35,009 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:35,019 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:35,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:35,022 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2021-10-28 08:42:35,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:35,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437130122] [2021-10-28 08:42:35,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:35,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:35,031 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:35,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:35,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:35,042 INFO L85 PathProgramCache]: Analyzing trace with hash -396143387, now seen corresponding path program 1 times [2021-10-28 08:42:35,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:35,043 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249811409] [2021-10-28 08:42:35,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:35,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-10-28 08:42:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:35,139 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 08:42:35,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:35,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249811409] [2021-10-28 08:42:35,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249811409] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:35,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:42:35,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:42:35,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422595717] [2021-10-28 08:42:35,156 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:35,156 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:35,156 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:35,156 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:35,156 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:42:35,157 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,157 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:35,157 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:35,157 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration3_Loop [2021-10-28 08:42:35,157 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:35,157 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:35,159 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 08:42:35,165 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 08:42:35,187 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:35,187 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:42:35,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:35,190 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:35,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:35,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:35,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2021-10-28 08:42:35,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:35,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:35,272 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:35,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:42:35,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:35,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2021-10-28 08:42:35,362 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:42:35,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:35,369 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:35,369 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:35,370 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:35,370 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:35,370 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:35,370 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,370 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:35,370 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:35,370 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration3_Loop [2021-10-28 08:42:35,370 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:35,370 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:35,371 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 08:42:35,374 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 08:42:35,403 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:35,404 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:35,404 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:35,405 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:35,411 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 08:42:35,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:35,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:35,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:35,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:35,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:35,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:35,424 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:35,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2021-10-28 08:42:35,437 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-28 08:42:35,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:35,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:35,482 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:35,484 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 08:42:35,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:35,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:35,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:35,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:35,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:35,497 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:35,498 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:35,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-10-28 08:42:35,517 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:35,521 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:42:35,521 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:42:35,521 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:35,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:35,522 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:35,530 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:35,530 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:42:35,531 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:35,531 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-10-28 08:42:35,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-10-28 08:42:35,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:35,576 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:42:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:35,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:42:35,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:35,840 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:42:35,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:35,841 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 08:42:35,842 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 08:42:35,842 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 6 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 08:42:35,905 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 20 transitions. cyclomatic complexity: 6. 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 37 states and 49 transitions. Complement of second has 10 states. [2021-10-28 08:42:35,906 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 08:42:35,907 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 08:42:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-28 08:42:35,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2021-10-28 08:42:35,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:35,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2021-10-28 08:42:35,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:35,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2021-10-28 08:42:35,913 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:35,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2021-10-28 08:42:35,918 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:35,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 31 states and 41 transitions. [2021-10-28 08:42:35,923 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2021-10-28 08:42:35,924 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 08:42:35,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 41 transitions. [2021-10-28 08:42:35,925 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:35,925 INFO L681 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-10-28 08:42:35,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 41 transitions. [2021-10-28 08:42:35,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-28 08:42:35,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:42:35,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-10-28 08:42:35,937 INFO L704 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-10-28 08:42:35,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:35,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:42:35,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:42:35,938 INFO L87 Difference]: Start difference. First operand 31 states and 41 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 08:42:35,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:35,960 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2021-10-28 08:42:35,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:42:35,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 35 transitions. [2021-10-28 08:42:35,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:35,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 08:42:35,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2021-10-28 08:42:35,968 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2021-10-28 08:42:35,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 35 transitions. [2021-10-28 08:42:35,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:35,968 INFO L681 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 08:42:35,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 35 transitions. [2021-10-28 08:42:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-28 08:42:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (8), 4 states have call predecessors, (8), 3 states have call successors, (8) [2021-10-28 08:42:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 08:42:35,979 INFO L704 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 08:42:35,979 INFO L587 BuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 08:42:35,979 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-28 08:42:35,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2021-10-28 08:42:35,983 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-10-28 08:42:35,983 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:35,983 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:35,984 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:35,984 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:35,985 INFO L791 eck$LassoCheckResult]: Stem: 354#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 355#L18 assume !(main_~i~0 <= 0); 361#L20 call main_#t~ret3 := rec(main_~i~0);< 366#recENTRY ~a := #in~a; 360#L5 assume !(0 == ~a); 357#L8 call #t~ret0 := rec(~a - 1);< 365#recENTRY ~a := #in~a; 356#L5 assume 0 == ~a;#res := 0; 359#recFINAL assume true; 379#recEXIT >#45#return; 380#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 376#L10-2 assume !(~rescopy~0 > 0); 375#L10-3 #res := 1 + ~res~0; 374#recFINAL assume true; 373#recEXIT >#47#return; 368#L20-1 main_~res~1 := main_#t~ret3;havoc main_#t~ret3; 369#L21-2 [2021-10-28 08:42:35,985 INFO L793 eck$LassoCheckResult]: Loop: 369#L21-2 assume !!(main_~res~1 < 1); 369#L21-2 [2021-10-28 08:42:35,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:35,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1423892654, now seen corresponding path program 1 times [2021-10-28 08:42:35,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:35,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838649463] [2021-10-28 08:42:35,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:35,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,009 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,028 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,029 INFO L85 PathProgramCache]: Analyzing trace with hash 69, now seen corresponding path program 2 times [2021-10-28 08:42:36,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:36,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051682990] [2021-10-28 08:42:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,033 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:36,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,035 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:36,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1190999276, now seen corresponding path program 1 times [2021-10-28 08:42:36,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:36,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631457941] [2021-10-28 08:42:36,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:36,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:42:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:36,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-10-28 08:42:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:36,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:42:36,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:42:36,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631457941] [2021-10-28 08:42:36,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631457941] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:42:36,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528629881] [2021-10-28 08:42:36,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,198 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:42:36,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:36,199 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:42:36,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-10-28 08:42:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:36,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:42:36,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-28 08:42:36,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528629881] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:42:36,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:42:36,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 10 [2021-10-28 08:42:36,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867865331] [2021-10-28 08:42:36,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:42:36,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-28 08:42:36,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-10-28 08:42:36,386 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-10-28 08:42:36,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:42:36,419 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-10-28 08:42:36,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:42:36,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2021-10-28 08:42:36,423 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 08:42:36,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 22 states and 26 transitions. [2021-10-28 08:42:36,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2021-10-28 08:42:36,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-28 08:42:36,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 26 transitions. [2021-10-28 08:42:36,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-28 08:42:36,427 INFO L681 BuchiCegarLoop]: Abstraction has 22 states and 26 transitions. [2021-10-28 08:42:36,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 26 transitions. [2021-10-28 08:42:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-28 08:42:36,433 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 08:42:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-28 08:42:36,434 INFO L704 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-28 08:42:36,434 INFO L587 BuchiCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-28 08:42:36,434 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-28 08:42:36,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 22 transitions. [2021-10-28 08:42:36,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 08:42:36,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 08:42:36,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 08:42:36,441 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-28 08:42:36,441 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 08:42:36,441 INFO L791 eck$LassoCheckResult]: Stem: 500#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 494#L18 assume !(main_~i~0 <= 0); 495#L20 call main_#t~ret3 := rec(main_~i~0);< 502#recENTRY ~a := #in~a; 503#L5 assume !(0 == ~a); 497#L8 call #t~ret0 := rec(~a - 1);< 501#recENTRY ~a := #in~a; 505#L5 assume !(0 == ~a); 498#L8 call #t~ret0 := rec(~a - 1);< 501#recENTRY ~a := #in~a; 504#L5 assume 0 == ~a;#res := 0; 508#recFINAL assume true; 509#recEXIT >#45#return; 510#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 506#L10-2 assume !(~rescopy~0 > 0); 507#L10-3 #res := 1 + ~res~0; 511#recFINAL assume true; 512#recEXIT >#45#return; 496#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 499#L10-2 [2021-10-28 08:42:36,441 INFO L793 eck$LassoCheckResult]: Loop: 499#L10-2 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 499#L10-2 [2021-10-28 08:42:36,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,442 INFO L85 PathProgramCache]: Analyzing trace with hash -274003163, now seen corresponding path program 1 times [2021-10-28 08:42:36,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:36,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547479010] [2021-10-28 08:42:36,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,476 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,492 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:36,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,496 INFO L85 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 2 times [2021-10-28 08:42:36,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:36,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151183426] [2021-10-28 08:42:36,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,503 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,509 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:36,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,511 INFO L85 PathProgramCache]: Analyzing trace with hash 95836554, now seen corresponding path program 1 times [2021-10-28 08:42:36,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:42:36,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977952236] [2021-10-28 08:42:36,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:42:36,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:42:36,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,525 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:42:36,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:42:36,540 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:42:36,561 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:36,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:36,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:36,562 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:36,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 08:42:36,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:36,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:36,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration5_Loop [2021-10-28 08:42:36,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:36,563 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:36,564 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 08:42:36,570 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 08:42:36,594 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:36,594 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 08:42:36,594 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:36,596 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:36,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 08:42:36,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:36,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-10-28 08:42:36,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-10-28 08:42:36,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:36,643 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:36,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-10-28 08:42:36,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 08:42:36,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 08:42:36,713 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 08:42:36,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:36,717 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 08:42:36,717 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 08:42:36,717 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 08:42:36,718 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 08:42:36,718 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 08:42:36,718 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,718 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 08:42:36,718 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 08:42:36,718 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_counter3.c_Iteration5_Loop [2021-10-28 08:42:36,718 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 08:42:36,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 08:42:36,719 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 08:42:36,726 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 08:42:36,748 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 08:42:36,748 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 08:42:36,748 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:36,750 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:36,755 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 08:42:36,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 08:42:36,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 08:42:36,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 08:42:36,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 08:42:36,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 08:42:36,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 08:42:36,769 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 08:42:36,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-10-28 08:42:36,781 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 08:42:36,785 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-28 08:42:36,785 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-28 08:42:36,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 08:42:36,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:42:36,791 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 08:42:36,792 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 08:42:36,793 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 08:42:36,793 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 08:42:36,793 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2021-10-28 08:42:36,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-10-28 08:42:36,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:36,835 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 08:42:36,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:36,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:42:36,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:37,277 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:42:37,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,278 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 08:42:37,280 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 08:42:37,280 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 08:42:37,316 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 08:42:37,317 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 08:42:37,317 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 08:42:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 08:42:37,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 08:42:37,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:37,319 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:37,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:37,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:37,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:42:37,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:37,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:42:37,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,604 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 08:42:37,605 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 08:42:37,605 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 08:42:37,642 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 08:42:37,642 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 08:42:37,643 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 08:42:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2021-10-28 08:42:37,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 08:42:37,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:37,644 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-10-28 08:42:37,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:42:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:37,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-28 08:42:37,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:42:37,952 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:42:37,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:42:37,953 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 08:42:37,953 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 08:42:37,954 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 08:42:37,990 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 08:42:37,990 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 08:42:37,991 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 08:42:37,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-10-28 08:42:37,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 1 letters. [2021-10-28 08:42:37,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:37,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 20 letters. Loop has 1 letters. [2021-10-28 08:42:37,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:37,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 19 letters. Loop has 2 letters. [2021-10-28 08:42:37,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 08:42:37,993 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2021-10-28 08:42:37,995 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:37,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2021-10-28 08:42:37,995 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 08:42:37,995 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 08:42:37,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 08:42:37,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:42:37,996 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:37,996 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:37,996 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:42:37,996 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-10-28 08:42:37,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:42:37,996 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 08:42:37,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 08:42:38,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 08:42:38 BoogieIcfgContainer [2021-10-28 08:42:38,003 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 08:42:38,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:42:38,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:42:38,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:42:38,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:42:31" (3/4) ... [2021-10-28 08:42:38,008 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 08:42:38,009 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:42:38,010 INFO L168 Benchmark]: Toolchain (without parser) took 7603.42 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 51.4 MB in the beginning and 76.7 MB in the end (delta: -25.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:38,011 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:38,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.44 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 68.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:38,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.03 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:38,012 INFO L168 Benchmark]: Boogie Preprocessor took 23.46 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 66.3 MB in the end (delta: 890.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:38,013 INFO L168 Benchmark]: RCFGBuilder took 355.72 ms. Allocated memory is still 92.3 MB. Free memory was 66.3 MB in the beginning and 58.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:38,013 INFO L168 Benchmark]: BuchiAutomizer took 6900.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.1 MB in the beginning and 76.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:42:38,014 INFO L168 Benchmark]: Witness Printer took 4.61 ms. Allocated memory is still 111.1 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:42:38,016 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory is still 67.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.44 ms. Allocated memory is still 92.3 MB. Free memory was 51.1 MB in the beginning and 68.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.03 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 67.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.46 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 66.3 MB in the end (delta: 890.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 355.72 ms. Allocated memory is still 92.3 MB. Free memory was 66.3 MB in the beginning and 58.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6900.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 58.1 MB in the beginning and 76.7 MB in the end (delta: -18.6 MB). Peak memory consumption was 2.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.61 ms. Allocated memory is still 111.1 MB. Free memory is still 76.7 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 6 terminating modules (3 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 4 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.8s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 4.6s. Construction of modules took 0.1s. Büchi inclusion checks took 1.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 91 SDslu, 140 SDs, 0 SdLazy, 87 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT1 SILN1 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: 201ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 17 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 08:42:38,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-10-28 08:42:38,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59c7ddf4-ab9f-4b83-b6a7-7f3d46385b33/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...