./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3 --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 32bit --witnessprinter.graph.data.programhash 266436f0336fa87343e9fe2aac074f47fa1a621a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:41:24,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:41:24,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:41:24,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:41:24,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:41:24,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:41:24,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:41:24,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:41:24,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:41:24,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:41:24,807 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:41:24,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:41:24,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:41:24,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:41:24,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:41:24,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:41:24,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:41:24,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:41:24,832 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:41:24,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:41:24,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:41:24,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:41:24,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:41:24,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:41:24,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:41:24,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:41:24,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:41:24,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:41:24,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:41:24,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:41:24,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:41:24,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:41:24,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:41:24,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:41:24,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:41:24,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:41:24,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:41:24,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:41:24,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:41:24,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:41:24,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:41:24,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:41:24,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:41:24,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:41:24,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:41:24,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:41:24,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:41:24,952 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:41:24,952 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:41:24,952 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:41:24,953 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:41:24,953 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:41:24,954 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:41:24,955 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:41:24,955 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:41:24,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:41:24,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:41:24,956 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:41:24,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:41:24,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:41:24,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:41:24,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:41:24,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:41:24,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:41:24,958 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:41:24,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:41:24,959 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:41:24,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:41:24,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:41:24,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:41:24,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:41:24,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:41:24,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:41:24,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:41:24,962 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:41:24,963 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_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 266436f0336fa87343e9fe2aac074f47fa1a621a [2021-10-15 19:41:25,398 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:41:25,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:41:25,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:41:25,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:41:25,467 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:41:25,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2021-10-15 19:41:25,589 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/data/38b3710b7/900570c4397d46e7a5c17c98d632038c/FLAGf63211829 [2021-10-15 19:41:26,275 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:41:26,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2021-10-15 19:41:26,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/data/38b3710b7/900570c4397d46e7a5c17c98d632038c/FLAGf63211829 [2021-10-15 19:41:26,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/data/38b3710b7/900570c4397d46e7a5c17c98d632038c [2021-10-15 19:41:26,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:41:26,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:41:26,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:41:26,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:41:26,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:41:26,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:26,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e458128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26, skipping insertion in model container [2021-10-15 19:41:26,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:26,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:41:26,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:41:26,925 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c[946,959] [2021-10-15 19:41:26,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:41:26,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:41:26,959 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c[946,959] [2021-10-15 19:41:26,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:41:26,977 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:41:26,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26 WrapperNode [2021-10-15 19:41:26,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:41:26,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:41:26,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:41:26,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:41:26,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:26,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:41:27,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:41:27,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:41:27,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:41:27,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:41:27,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:41:27,046 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:41:27,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:41:27,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (1/1) ... [2021-10-15 19:41:27,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:27,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:27,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:27,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:41:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:41:27,153 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-10-15 19:41:27,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-10-15 19:41:27,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:41:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-10-15 19:41:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-10-15 19:41:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:41:27,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:41:27,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:41:27,408 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-15 19:41:27,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:41:27 BoogieIcfgContainer [2021-10-15 19:41:27,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:41:27,412 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:41:27,412 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:41:27,425 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:41:27,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:41:27,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:41:26" (1/3) ... [2021-10-15 19:41:27,428 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee80671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:41:27, skipping insertion in model container [2021-10-15 19:41:27,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:41:27,429 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:41:26" (2/3) ... [2021-10-15 19:41:27,429 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@ee80671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:41:27, skipping insertion in model container [2021-10-15 19:41:27,429 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:41:27,430 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:41:27" (3/3) ... [2021-10-15 19:41:27,431 INFO L389 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2-1.c [2021-10-15 19:41:27,532 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:41:27,533 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:41:27,533 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:41:27,533 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:41:27,533 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:41:27,533 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:41:27,534 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:41:27,534 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:41:27,568 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-15 19:41:27,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-15 19:41:27,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:41:27,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:41:27,606 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:41:27,606 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:41:27,606 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:41:27,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-10-15 19:41:27,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-15 19:41:27,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:41:27,612 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:41:27,612 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-15 19:41:27,613 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:41:27,621 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 2; 15#L39true call main_#t~ret11 := fibo1(main_~x~0);< 5#fibo1ENTRYtrue [2021-10-15 19:41:27,621 INFO L793 eck$LassoCheckResult]: Loop: 5#fibo1ENTRYtrue ~n := #in~n; 9#L10true assume !(~n < 1); 8#L12true assume !(1 == ~n); 10#L15true call #t~ret7 := fibo2(~n - 1);< 14#fibo2ENTRYtrue ~n := #in~n; 12#L20true assume !(~n < 1); 17#L22true assume !(1 == ~n); 23#L25true call #t~ret9 := fibo1(~n - 1);< 5#fibo1ENTRYtrue [2021-10-15 19:41:27,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:41:27,629 INFO L82 PathProgramCache]: Analyzing trace with hash 29896, now seen corresponding path program 1 times [2021-10-15 19:41:27,645 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:41:27,646 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662946857] [2021-10-15 19:41:27,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:41:27,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:41:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:41:27,817 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:41:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:41:27,896 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:41:27,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:41:27,903 INFO L82 PathProgramCache]: Analyzing trace with hash 181289832, now seen corresponding path program 1 times [2021-10-15 19:41:27,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:41:27,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091972354] [2021-10-15 19:41:27,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:41:27,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:41:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:41:27,928 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:41:27,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:41:27,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:41:27,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:41:27,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1313669423, now seen corresponding path program 1 times [2021-10-15 19:41:27,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:41:27,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922811369] [2021-10-15 19:41:27,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:41:27,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:41:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:41:28,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:41:28,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:41:28,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922811369] [2021-10-15 19:41:28,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922811369] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:41:28,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:41:28,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-15 19:41:28,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130634514] [2021-10-15 19:41:28,521 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:41:28,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:41:28,522 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:41:28,522 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:41:28,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-15 19:41:28,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:28,523 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:41:28,523 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:41:28,523 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-1.c_Iteration1_Loop [2021-10-15 19:41:28,523 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:41:28,523 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:41:28,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,564 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:28,699 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:41:28,700 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-15 19:41:28,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:28,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:28,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:28,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:28,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:28,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-15 19:41:28,746 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:28,746 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:28,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:28,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:28,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:28,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:28,801 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:28,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:28,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-15 19:41:28,825 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:28,825 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:28,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:28,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:28,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:28,873 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:28,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:28,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:28,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-15 19:41:28,905 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:28,905 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:28,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:28,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:28,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:28,950 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:28,957 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:28,957 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:28,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-15 19:41:28,981 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:28,981 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:29,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,022 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:29,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-15 19:41:29,053 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:29,053 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:29,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-15 19:41:29,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:29,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,128 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:29,128 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:29,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,177 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:29,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-15 19:41:29,211 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:29,212 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:29,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,240 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,241 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:29,244 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-15 19:41:29,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-15 19:41:29,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-15 19:41:29,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,307 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-15 19:41:29,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-15 19:41:29,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,391 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,393 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-15 19:41:29,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-15 19:41:29,396 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-15 19:41:29,491 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-15 19:41:29,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,499 INFO L210 LassoAnalysis]: Preferences: [2021-10-15 19:41:29,500 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-15 19:41:29,500 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-15 19:41:29,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-15 19:41:29,500 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-15 19:41:29,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,500 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-15 19:41:29,500 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-15 19:41:29,500 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-1.c_Iteration1_Loop [2021-10-15 19:41:29,500 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-15 19:41:29,501 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-15 19:41:29,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-15 19:41:29,648 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-15 19:41:29,654 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-15 19:41:29,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,657 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-15 19:41:29,662 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:41:29,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,673 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,673 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,675 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,675 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,693 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:29,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,736 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,741 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,749 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 [2021-10-15 19:41:29,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,763 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-15 19:41:29,784 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:29,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,817 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,819 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 [2021-10-15 19:41:29,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-15 19:41:29,832 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,832 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,833 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:29,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,860 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-15 19:41:29,865 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 [2021-10-15 19:41:29,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,884 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,885 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:29,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:29,910 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,911 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-15 19:41:29,914 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 [2021-10-15 19:41:29,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,923 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,923 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,923 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,924 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:29,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-15 19:41:29,961 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:29,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:29,963 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:29,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-15 19:41:29,967 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 [2021-10-15 19:41:29,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:29,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:29,979 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:29,979 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:29,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:29,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:29,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:29,991 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:30,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:30,018 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:30,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:30,019 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:30,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-15 19:41:30,024 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-15 19:41:30,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:30,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:30,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:30,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:30,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:30,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:30,034 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:30,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:30,065 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-15 19:41:30,066 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:30,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:30,067 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:30,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-15 19:41:30,069 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 [2021-10-15 19:41:30,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:30,078 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:30,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:30,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:30,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:30,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:30,080 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:30,110 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-15 19:41:30,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:30,132 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:30,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:30,134 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:30,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-15 19:41:30,144 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 [2021-10-15 19:41:30,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-15 19:41:30,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-15 19:41:30,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-15 19:41:30,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-15 19:41:30,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-15 19:41:30,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-15 19:41:30,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-15 19:41:30,164 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-15 19:41:30,168 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-15 19:41:30,168 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-15 19:41:30,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:41:30,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:41:30,172 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:41:30,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-15 19:41:30,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-15 19:41:30,178 INFO L513 LassoAnalysis]: Proved termination. [2021-10-15 19:41:30,178 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2021-10-15 19:41:30,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-15 19:41:30,229 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:30,232 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-15 19:41:30,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:41:30,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:41:30,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-15 19:41:30,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:41:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:41:30,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-15 19:41:30,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:41:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:41:30,526 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-10-15 19:41:30,527 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:41:30,810 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 116 transitions. Complement of second has 24 states. [2021-10-15 19:41:30,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-10-15 19:41:30,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:41:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-10-15 19:41:30,816 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2021-10-15 19:41:30,818 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:41:30,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-10-15 19:41:30,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:41:30,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2021-10-15 19:41:30,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-15 19:41:30,820 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-10-15 19:41:30,830 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-10-15 19:41:30,840 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 61 states and 82 transitions. [2021-10-15 19:41:30,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-10-15 19:41:30,842 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-10-15 19:41:30,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2021-10-15 19:41:30,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-15 19:41:30,846 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 82 transitions. [2021-10-15 19:41:30,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2021-10-15 19:41:30,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-10-15 19:41:30,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2021-10-15 19:41:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2021-10-15 19:41:30,882 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-10-15 19:41:30,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:41:30,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-15 19:41:30,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-15 19:41:30,888 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. Second operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:41:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:41:30,959 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-10-15 19:41:30,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-15 19:41:30,960 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 18 transitions. [2021-10-15 19:41:30,961 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:41:30,961 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-10-15 19:41:30,961 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-15 19:41:30,962 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-15 19:41:30,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-15 19:41:30,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:41:30,962 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:41:30,962 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:41:30,962 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-15 19:41:30,962 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:41:30,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-15 19:41:30,962 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-15 19:41:30,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-15 19:41:30,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:41:30 BoogieIcfgContainer [2021-10-15 19:41:30,972 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:41:30,973 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:41:30,973 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:41:30,973 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:41:30,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:41:27" (3/4) ... [2021-10-15 19:41:30,977 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-15 19:41:30,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:41:30,979 INFO L168 Benchmark]: Toolchain (without parser) took 4329.77 ms. Allocated memory is still 121.6 MB. Free memory was 86.9 MB in the beginning and 53.2 MB in the end (delta: 33.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-15 19:41:30,980 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 95.8 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:41:30,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.04 ms. Allocated memory is still 121.6 MB. Free memory was 86.7 MB in the beginning and 96.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:41:30,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.46 ms. Allocated memory is still 121.6 MB. Free memory was 96.5 MB in the beginning and 95.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:41:30,990 INFO L168 Benchmark]: Boogie Preprocessor took 24.14 ms. Allocated memory is still 121.6 MB. Free memory was 95.1 MB in the beginning and 94.5 MB in the end (delta: 636.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:41:30,990 INFO L168 Benchmark]: RCFGBuilder took 365.00 ms. Allocated memory is still 121.6 MB. Free memory was 94.5 MB in the beginning and 84.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:41:30,991 INFO L168 Benchmark]: BuchiAutomizer took 3560.16 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 53.2 MB in the end (delta: 31.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. [2021-10-15 19:41:30,991 INFO L168 Benchmark]: Witness Printer took 4.72 ms. Allocated memory is still 121.6 MB. Free memory is still 53.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:41:30,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 121.6 MB. Free memory was 95.9 MB in the beginning and 95.8 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 324.04 ms. Allocated memory is still 121.6 MB. Free memory was 86.7 MB in the beginning and 96.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.46 ms. Allocated memory is still 121.6 MB. Free memory was 96.5 MB in the beginning and 95.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.14 ms. Allocated memory is still 121.6 MB. Free memory was 95.1 MB in the beginning and 94.5 MB in the end (delta: 636.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 365.00 ms. Allocated memory is still 121.6 MB. Free memory was 94.5 MB in the beginning and 84.7 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3560.16 ms. Allocated memory is still 121.6 MB. Free memory was 84.7 MB in the beginning and 53.2 MB in the end (delta: 31.4 MB). Peak memory consumption was 32.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.72 ms. Allocated memory is still 121.6 MB. Free memory is still 53.2 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 20.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 41 SDslu, 38 SDs, 0 SdLazy, 122 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 123.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-15 19:41:31,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:41:31,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6d7f99-c842-479d-94ab-38cf9a5f1ea6/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...