./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS --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 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:16:53,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:16:53,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:16:54,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:16:54,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:16:54,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:16:54,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:16:54,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:16:54,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:16:54,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:16:54,027 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:16:54,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:16:54,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:16:54,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:16:54,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:16:54,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:16:54,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:16:54,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:16:54,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:16:54,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:16:54,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:16:54,055 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:16:54,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:16:54,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:16:54,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:16:54,066 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:16:54,066 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:16:54,068 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:16:54,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:16:54,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:16:54,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:16:54,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:16:54,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:16:54,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:16:54,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:16:54,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:16:54,077 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:16:54,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:16:54,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:16:54,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:16:54,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:16:54,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 02:16:54,126 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:16:54,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:16:54,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:16:54,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:16:54,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:16:54,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:16:54,130 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:16:54,130 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:16:54,130 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:16:54,131 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:16:54,132 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:16:54,132 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:16:54,132 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:16:54,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:16:54,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:16:54,133 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:16:54,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:16:54,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:16:54,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:16:54,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:16:54,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:16:54,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:16:54,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:16:54,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:16:54,135 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:16:54,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:16:54,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:16:54,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:16:54,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:16:54,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:16:54,138 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:16:54,140 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:16:54,140 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_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb [2022-11-23 02:16:54,495 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:16:54,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:16:54,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:16:54,536 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:16:54,537 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:16:54,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-11-23 02:16:57,796 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:16:58,070 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:16:58,070 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2022-11-23 02:16:58,077 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/data/1681abcda/98debc0047ab45a0885d96e9570dd1df/FLAG7c5a69a10 [2022-11-23 02:16:58,092 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/data/1681abcda/98debc0047ab45a0885d96e9570dd1df [2022-11-23 02:16:58,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:16:58,096 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:16:58,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:16:58,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:16:58,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:16:58,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f0c08e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58, skipping insertion in model container [2022-11-23 02:16:58,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:16:58,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:16:58,270 WARN L237 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_9c1efcec-21bc-4813-ad80-629c480cba7b/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-11-23 02:16:58,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:16:58,284 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:16:58,299 WARN L237 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_9c1efcec-21bc-4813-ad80-629c480cba7b/sv-benchmarks/c/recursive-simple/fibo_7-1.c[741,754] [2022-11-23 02:16:58,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:16:58,313 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:16:58,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58 WrapperNode [2022-11-23 02:16:58,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:16:58,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:16:58,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:16:58,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:16:58,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,346 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-11-23 02:16:58,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:16:58,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:16:58,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:16:58,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:16:58,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,362 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,365 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:16:58,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:16:58,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:16:58,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:16:58,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (1/1) ... [2022-11-23 02:16:58,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:58,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:58,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:58,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:16:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:16:58,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:16:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:16:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:16:58,452 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2022-11-23 02:16:58,452 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2022-11-23 02:16:58,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:16:58,524 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:16:58,618 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:16:58,624 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:16:58,624 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:16:58,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:58 BoogieIcfgContainer [2022-11-23 02:16:58,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:16:58,627 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:16:58,627 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:16:58,632 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:16:58,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:16:58,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:16:58" (1/3) ... [2022-11-23 02:16:58,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c1ba29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:16:58, skipping insertion in model container [2022-11-23 02:16:58,634 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:16:58,634 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:16:58" (2/3) ... [2022-11-23 02:16:58,634 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c1ba29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:16:58, skipping insertion in model container [2022-11-23 02:16:58,635 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:16:58,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:58" (3/3) ... [2022-11-23 02:16:58,636 INFO L332 chiAutomizerObserver]: Analyzing ICFG fibo_7-1.c [2022-11-23 02:16:58,694 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:16:58,695 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:16:58,695 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:16:58,695 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:16:58,695 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:16:58,695 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:16:58,695 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:16:58,696 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:16:58,700 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:16:58,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:16:58,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:16:58,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:16:58,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-23 02:16:58,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 02:16:58,730 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:16:58,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 02:16:58,733 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:16:58,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:16:58,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:16:58,734 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-23 02:16:58,734 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 02:16:58,742 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 12#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 5#L27true call main_#t~ret6#1 := fibo(main_~x~0#1);< 6#fiboENTRYtrue [2022-11-23 02:16:58,743 INFO L750 eck$LassoCheckResult]: Loop: 6#fiboENTRYtrue ~n := #in~n; 7#L8true assume !(~n < 1); 9#L10true assume !(1 == ~n); 14#L13true call #t~ret4 := fibo(~n - 1);< 6#fiboENTRYtrue [2022-11-23 02:16:58,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:58,749 INFO L85 PathProgramCache]: Analyzing trace with hash 29883, now seen corresponding path program 1 times [2022-11-23 02:16:58,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:58,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989300322] [2022-11-23 02:16:58,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:58,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:58,886 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:16:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:58,935 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:16:58,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:58,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1450956, now seen corresponding path program 1 times [2022-11-23 02:16:58,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:58,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122726156] [2022-11-23 02:16:58,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:58,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:58,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:58,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:16:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:58,969 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:16:58,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:16:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1828301702, now seen corresponding path program 1 times [2022-11-23 02:16:58,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:16:58,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150377748] [2022-11-23 02:16:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:16:58,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:16:58,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:58,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:16:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:16:59,018 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:16:59,201 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:16:59,215 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:16:59,215 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:16:59,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:16:59,216 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:16:59,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:16:59,217 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:16:59,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2022-11-23 02:16:59,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:16:59,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:16:59,254 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,278 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,297 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,361 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:16:59,361 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:16:59,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-23 02:16:59,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:16:59,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:16:59,410 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:16:59,411 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:16:59,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,434 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:16:59,434 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:16:59,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-23 02:16:59,449 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:16:59,449 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:16:59,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,463 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,476 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:16:59,476 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:16:59,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-23 02:16:59,509 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:16:59,510 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:16:59,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-11-23 02:16:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,551 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-23 02:16:59,555 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:16:59,555 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:16:59,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,602 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:16:59,607 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:16:59,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-23 02:16:59,700 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:16:59,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,707 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:16:59,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:16:59,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:16:59,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:16:59,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:16:59,707 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:16:59,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:16:59,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2022-11-23 02:16:59,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:16:59,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:16:59,710 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,739 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:16:59,794 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:16:59,799 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:16:59,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,802 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-23 02:16:59,827 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 [2022-11-23 02:16:59,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:16:59,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:16:59,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:16:59,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:16:59,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:16:59,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:16:59,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:16:59,875 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:16:59,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,902 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:16:59,947 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 [2022-11-23 02:16:59,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:16:59,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:16:59,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:16:59,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:16:59,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:16:59,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:16:59,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:16:59,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-23 02:16:59,987 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:16:59,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-23 02:16:59,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:16:59,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:16:59,998 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:00,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-23 02:17:00,006 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 [2022-11-23 02:17:00,017 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:00,017 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:00,017 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:00,017 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:00,017 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:00,018 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:00,018 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:00,030 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:00,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:00,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:00,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:00,045 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:00,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-23 02:17:00,047 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 [2022-11-23 02:17:00,057 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:00,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:00,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:00,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:00,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:00,059 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:00,059 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:00,071 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:17:00,077 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:17:00,077 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 02:17:00,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:00,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:00,080 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:00,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-23 02:17:00,099 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:17:00,099 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:17:00,099 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:17:00,099 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2022-11-23 02:17:00,109 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:00,112 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:17:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 02:17:00,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:00,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:00,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:00,338 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-11-23 02:17:00,340 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,490 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 48 states and 60 transitions. Complement of second has 12 states. [2022-11-23 02:17:00,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:00,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:17:00,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-23 02:17:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 4 letters. [2022-11-23 02:17:00,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:00,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2022-11-23 02:17:00,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:00,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 8 letters. [2022-11-23 02:17:00,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:00,504 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 60 transitions. [2022-11-23 02:17:00,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:17:00,514 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 25 states and 34 transitions. [2022-11-23 02:17:00,515 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2022-11-23 02:17:00,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2022-11-23 02:17:00,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 34 transitions. [2022-11-23 02:17:00,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:00,517 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 34 transitions. [2022-11-23 02:17:00,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 34 transitions. [2022-11-23 02:17:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 20. [2022-11-23 02:17:00,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:00,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-11-23 02:17:00,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-23 02:17:00,549 INFO L428 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-11-23 02:17:00,549 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:17:00,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2022-11-23 02:17:00,550 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:17:00,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:17:00,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:17:00,552 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:00,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:00,552 INFO L748 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 128#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 131#fiboENTRY ~n := #in~n; 132#L8 assume !(~n < 1); 137#L10 assume !(1 == ~n); 126#L13 call #t~ret4 := fibo(~n - 1);< 127#fiboENTRY ~n := #in~n; 133#L8 assume ~n < 1;#res := 0; 134#fiboFINAL assume true; 135#fiboEXIT >#33#return; 124#L13-1 [2022-11-23 02:17:00,553 INFO L750 eck$LassoCheckResult]: Loop: 124#L13-1 call #t~ret5 := fibo(~n - 2);< 125#fiboENTRY ~n := #in~n; 140#L8 assume !(~n < 1); 139#L10 assume !(1 == ~n); 123#L13 call #t~ret4 := fibo(~n - 1);< 125#fiboENTRY ~n := #in~n; 140#L8 assume ~n < 1;#res := 0; 130#fiboFINAL assume true; 138#fiboEXIT >#33#return; 124#L13-1 [2022-11-23 02:17:00,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:00,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1181449843, now seen corresponding path program 1 times [2022-11-23 02:17:00,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:00,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826343103] [2022-11-23 02:17:00,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:00,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 02:17:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 02:17:00,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:00,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826343103] [2022-11-23 02:17:00,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826343103] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:00,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:00,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:17:00,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340634828] [2022-11-23 02:17:00,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:00,680 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:17:00,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:00,681 INFO L85 PathProgramCache]: Analyzing trace with hash 246097683, now seen corresponding path program 1 times [2022-11-23 02:17:00,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:00,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621677020] [2022-11-23 02:17:00,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:00,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-23 02:17:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 02:17:00,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621677020] [2022-11-23 02:17:00,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621677020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:17:00,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:17:00,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:17:00,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390139364] [2022-11-23 02:17:00,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:17:00,751 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:17:00,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:17:00,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:17:00,755 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:17:00,847 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2022-11-23 02:17:00,847 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2022-11-23 02:17:00,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:17:00,850 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions. [2022-11-23 02:17:00,850 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-11-23 02:17:00,850 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-11-23 02:17:00,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2022-11-23 02:17:00,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:00,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-23 02:17:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2022-11-23 02:17:00,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-23 02:17:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-11-23 02:17:00,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2022-11-23 02:17:00,855 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-23 02:17:00,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:17:00,856 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2022-11-23 02:17:00,856 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 02:17:00,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2022-11-23 02:17:00,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-23 02:17:00,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:17:00,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:17:00,858 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:00,858 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:00,859 INFO L748 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 195#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 200#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 204#fiboENTRY ~n := #in~n; 206#L8 assume !(~n < 1); 210#L10 assume !(1 == ~n); 199#L13 call #t~ret4 := fibo(~n - 1);< 201#fiboENTRY ~n := #in~n; 207#L8 assume !(~n < 1); 209#L10 assume 1 == ~n;#res := 1; 211#fiboFINAL assume true; 213#fiboEXIT >#33#return; 197#L13-1 [2022-11-23 02:17:00,859 INFO L750 eck$LassoCheckResult]: Loop: 197#L13-1 call #t~ret5 := fibo(~n - 2);< 198#fiboENTRY ~n := #in~n; 216#L8 assume !(~n < 1); 214#L10 assume !(1 == ~n); 196#L13 call #t~ret4 := fibo(~n - 1);< 198#fiboENTRY ~n := #in~n; 216#L8 assume !(~n < 1); 214#L10 assume 1 == ~n;#res := 1; 215#fiboFINAL assume true; 212#fiboEXIT >#33#return; 197#L13-1 [2022-11-23 02:17:00,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:00,860 INFO L85 PathProgramCache]: Analyzing trace with hash 2029785426, now seen corresponding path program 1 times [2022-11-23 02:17:00,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:00,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398553880] [2022-11-23 02:17:00,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:00,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-23 02:17:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:00,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:00,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:00,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398553880] [2022-11-23 02:17:00,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398553880] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:17:00,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032370051] [2022-11-23 02:17:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:17:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:00,963 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:17:00,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-23 02:17:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:01,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 02:17:01,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:01,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:01,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:17:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:01,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032370051] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:17:01,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:17:01,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-11-23 02:17:01,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728190977] [2022-11-23 02:17:01,233 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:17:01,233 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:17:01,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash -960881524, now seen corresponding path program 1 times [2022-11-23 02:17:01,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:01,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88835189] [2022-11-23 02:17:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:01,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:01,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:17:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:01,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:17:01,442 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:01,443 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:01,443 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:01,443 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:01,443 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:17:01,443 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:01,443 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:01,443 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:01,444 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2022-11-23 02:17:01,445 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:01,446 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:01,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:01,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:01,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:01,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:01,515 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:01,516 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:17:01,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:01,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:01,523 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:01,526 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:01,526 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:01,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-11-23 02:17:01,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:01,549 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:01,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:01,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:01,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:01,587 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:01,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:01,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:01,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-11-23 02:17:01,627 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:01,627 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:01,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:01,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:01,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:01,644 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:01,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:01,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:01,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-11-23 02:17:01,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:01,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:01,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:01,685 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:01,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:17:01,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:01,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-11-23 02:17:02,351 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:17:02,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:02,355 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:02,355 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:02,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:02,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:02,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:17:02,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:02,356 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:02,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:02,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2022-11-23 02:17:02,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:02,356 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:02,357 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:02,371 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:02,374 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:02,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:02,441 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:02,441 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:17:02,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:02,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:02,443 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:02,453 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 [2022-11-23 02:17:02,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:02,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:02,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:02,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:02,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:02,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:02,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:02,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-11-23 02:17:02,483 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:02,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:02,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:02,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:02,493 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:02,500 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 [2022-11-23 02:17:02,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-11-23 02:17:02,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:02,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:02,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:02,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:02,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:02,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:02,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:02,523 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:02,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:02,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:02,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:02,533 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:02,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-11-23 02:17:02,538 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-23 02:17:02,553 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:02,553 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:02,553 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:02,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:02,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:02,557 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:02,557 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:02,571 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:17:02,576 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:17:02,577 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 02:17:02,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:02,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:02,583 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:02,587 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:17:02,587 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:17:02,587 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:17:02,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-11-23 02:17:02,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-23 02:17:02,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:02,596 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:17:02,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:02,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-23 02:17:02,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:02,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2022-11-23 02:17:02,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:02,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 02:17:02,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:02,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:02,924 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-23 02:17:02,925 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 02:17:03,182 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 135 states and 183 transitions. Complement of second has 36 states. [2022-11-23 02:17:03,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 02:17:03,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-11-23 02:17:03,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 12 letters. Loop has 10 letters. [2022-11-23 02:17:03,189 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:03,189 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 22 letters. Loop has 10 letters. [2022-11-23 02:17:03,190 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:03,190 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 12 letters. Loop has 20 letters. [2022-11-23 02:17:03,193 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:03,193 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 135 states and 183 transitions. [2022-11-23 02:17:03,208 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-23 02:17:03,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 135 states to 108 states and 152 transitions. [2022-11-23 02:17:03,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 64 [2022-11-23 02:17:03,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2022-11-23 02:17:03,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 152 transitions. [2022-11-23 02:17:03,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:03,220 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 152 transitions. [2022-11-23 02:17:03,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 152 transitions. [2022-11-23 02:17:03,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2022-11-23 02:17:03,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (33), 18 states have call predecessors, (33), 19 states have call successors, (33) [2022-11-23 02:17:03,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2022-11-23 02:17:03,247 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 126 transitions. [2022-11-23 02:17:03,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:03,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 02:17:03,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 02:17:03,248 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 02:17:03,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:17:03,385 INFO L93 Difference]: Finished difference Result 123 states and 165 transitions. [2022-11-23 02:17:03,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 165 transitions. [2022-11-23 02:17:03,396 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-23 02:17:03,404 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 118 states and 160 transitions. [2022-11-23 02:17:03,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2022-11-23 02:17:03,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2022-11-23 02:17:03,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 160 transitions. [2022-11-23 02:17:03,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:03,408 INFO L218 hiAutomatonCegarLoop]: Abstraction has 118 states and 160 transitions. [2022-11-23 02:17:03,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 160 transitions. [2022-11-23 02:17:03,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2022-11-23 02:17:03,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (37), 20 states have call predecessors, (37), 22 states have call successors, (37) [2022-11-23 02:17:03,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 141 transitions. [2022-11-23 02:17:03,427 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-11-23 02:17:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-23 02:17:03,430 INFO L428 stractBuchiCegarLoop]: Abstraction has 106 states and 141 transitions. [2022-11-23 02:17:03,430 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 02:17:03,431 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 141 transitions. [2022-11-23 02:17:03,434 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2022-11-23 02:17:03,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:17:03,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:17:03,436 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:03,437 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:03,437 INFO L748 eck$LassoCheckResult]: Stem: 787#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 788#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 802#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 804#fiboENTRY ~n := #in~n; 852#L8 assume !(~n < 1); 851#L10 assume !(1 == ~n); 801#L13 call #t~ret4 := fibo(~n - 1);< 803#fiboENTRY ~n := #in~n; 813#L8 assume !(~n < 1); 818#L10 assume !(1 == ~n); 824#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 849#L8 assume !(~n < 1); 847#L10 assume !(1 == ~n); 841#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 849#L8 assume !(~n < 1); 847#L10 assume !(1 == ~n); 841#L13 call #t~ret4 := fibo(~n - 1);< 845#fiboENTRY ~n := #in~n; 850#L8 assume !(~n < 1); 848#L10 assume 1 == ~n;#res := 1; 846#fiboFINAL assume true; 844#fiboEXIT >#33#return; 790#L13-1 call #t~ret5 := fibo(~n - 2);< 842#fiboENTRY ~n := #in~n; 890#L8 assume ~n < 1;#res := 0; 889#fiboFINAL assume true; 888#fiboEXIT >#35#return; 887#L13-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 885#fiboFINAL assume true; 877#fiboEXIT >#33#return; 820#L13-1 [2022-11-23 02:17:03,437 INFO L750 eck$LassoCheckResult]: Loop: 820#L13-1 call #t~ret5 := fibo(~n - 2);< 800#fiboENTRY ~n := #in~n; 882#L8 assume !(~n < 1); 819#L10 assume !(1 == ~n); 822#L13 call #t~ret4 := fibo(~n - 1);< 800#fiboENTRY ~n := #in~n; 882#L8 assume !(~n < 1); 819#L10 assume 1 == ~n;#res := 1; 823#fiboFINAL assume true; 874#fiboEXIT >#33#return; 820#L13-1 [2022-11-23 02:17:03,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:03,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1730264506, now seen corresponding path program 1 times [2022-11-23 02:17:03,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654887777] [2022-11-23 02:17:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-23 02:17:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-23 02:17:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-23 02:17:03,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 02:17:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:03,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654887777] [2022-11-23 02:17:03,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654887777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:17:03,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671289726] [2022-11-23 02:17:03,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:03,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:17:03,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:03,680 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:17:03,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-23 02:17:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:03,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 02:17:03,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 02:17:03,801 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:17:04,065 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 47 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 02:17:04,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671289726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:17:04,066 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:17:04,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 18 [2022-11-23 02:17:04,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763508244] [2022-11-23 02:17:04,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:17:04,067 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:17:04,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:04,067 INFO L85 PathProgramCache]: Analyzing trace with hash -960881524, now seen corresponding path program 2 times [2022-11-23 02:17:04,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:04,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12338293] [2022-11-23 02:17:04,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:04,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:04,073 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:17:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:04,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:17:04,203 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:04,203 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:04,203 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:04,203 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:04,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:17:04,204 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:04,204 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:04,204 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:04,204 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2022-11-23 02:17:04,204 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:04,204 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:04,205 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:04,210 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:04,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:04,219 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:04,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:04,258 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:17:04,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:04,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:04,260 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:04,277 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:04,277 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:04,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-11-23 02:17:04,303 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:04,303 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:04,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:04,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:04,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:04,314 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:04,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:04,319 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:04,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-11-23 02:17:04,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:04,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:04,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:04,352 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:04,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:17:04,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:04,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2022-11-23 02:17:05,128 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:17:05,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:05,132 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:05,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:05,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:05,133 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:05,133 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:17:05,133 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:05,133 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:05,133 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:05,133 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2022-11-23 02:17:05,133 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:05,133 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:05,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:05,140 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:05,150 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:05,152 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:05,203 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:05,203 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:17:05,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:05,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:05,205 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:05,213 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 [2022-11-23 02:17:05,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-11-23 02:17:05,226 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:05,227 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:05,227 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:05,227 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:05,227 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:05,228 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:05,228 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:05,247 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:05,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:05,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:05,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:05,257 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:05,264 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 [2022-11-23 02:17:05,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:05,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:05,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:05,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:05,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:05,278 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:05,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:05,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-11-23 02:17:05,295 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:17:05,298 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-23 02:17:05,298 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:17:05,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:05,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:05,304 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:05,308 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:17:05,308 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:17:05,308 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:17:05,308 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-23 02:17:05,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-11-23 02:17:05,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:05,318 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:17:05,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:05,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:17:05,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:05,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 02:17:05,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:05,763 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-23 02:17:05,763 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:05,960 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 175 states and 233 transitions. Complement of second has 33 states. [2022-11-23 02:17:05,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:05,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:05,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 37 transitions. [2022-11-23 02:17:05,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 37 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-23 02:17:05,963 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:05,963 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 02:17:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:06,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:17:06,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:06,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 02:17:06,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:06,333 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-23 02:17:06,333 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:06,508 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 300 states and 403 transitions. Complement of second has 25 states. [2022-11-23 02:17:06,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:06,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:06,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 24 transitions. [2022-11-23 02:17:06,511 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 24 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-23 02:17:06,511 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:06,511 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 02:17:06,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:06,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:06,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:17:06,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:06,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:06,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:06,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 02:17:06,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:06,885 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2022-11-23 02:17:06,886 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:07,130 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 141 transitions. cyclomatic complexity: 40. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 858 states and 1136 transitions. Complement of second has 130 states. [2022-11-23 02:17:07,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:07,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 02:17:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2022-11-23 02:17:07,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 32 letters. Loop has 10 letters. [2022-11-23 02:17:07,133 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:07,133 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 42 letters. Loop has 10 letters. [2022-11-23 02:17:07,134 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:07,134 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 32 letters. Loop has 20 letters. [2022-11-23 02:17:07,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:07,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 858 states and 1136 transitions. [2022-11-23 02:17:07,145 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2022-11-23 02:17:07,153 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 858 states to 430 states and 620 transitions. [2022-11-23 02:17:07,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 163 [2022-11-23 02:17:07,154 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 188 [2022-11-23 02:17:07,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 430 states and 620 transitions. [2022-11-23 02:17:07,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:07,155 INFO L218 hiAutomatonCegarLoop]: Abstraction has 430 states and 620 transitions. [2022-11-23 02:17:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states and 620 transitions. [2022-11-23 02:17:07,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 352. [2022-11-23 02:17:07,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 221 states have (on average 1.1990950226244343) internal successors, (265), 235 states have internal predecessors, (265), 75 states have call successors, (84), 46 states have call predecessors, (84), 56 states have return successors, (136), 70 states have call predecessors, (136), 71 states have call successors, (136) [2022-11-23 02:17:07,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 485 transitions. [2022-11-23 02:17:07,203 INFO L240 hiAutomatonCegarLoop]: Abstraction has 352 states and 485 transitions. [2022-11-23 02:17:07,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:07,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-23 02:17:07,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-11-23 02:17:07,205 INFO L87 Difference]: Start difference. First operand 352 states and 485 transitions. Second operand has 19 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 13 states have internal predecessors, (35), 11 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 02:17:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:17:07,544 INFO L93 Difference]: Finished difference Result 559 states and 833 transitions. [2022-11-23 02:17:07,544 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 559 states and 833 transitions. [2022-11-23 02:17:07,553 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:07,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 559 states to 549 states and 817 transitions. [2022-11-23 02:17:07,561 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2022-11-23 02:17:07,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2022-11-23 02:17:07,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 549 states and 817 transitions. [2022-11-23 02:17:07,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:07,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 549 states and 817 transitions. [2022-11-23 02:17:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states and 817 transitions. [2022-11-23 02:17:07,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 517. [2022-11-23 02:17:07,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 316 states have (on average 1.1898734177215189) internal successors, (376), 334 states have internal predecessors, (376), 121 states have call successors, (135), 62 states have call predecessors, (135), 80 states have return successors, (264), 120 states have call predecessors, (264), 115 states have call successors, (264) [2022-11-23 02:17:07,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 775 transitions. [2022-11-23 02:17:07,612 INFO L240 hiAutomatonCegarLoop]: Abstraction has 517 states and 775 transitions. [2022-11-23 02:17:07,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 02:17:07,613 INFO L428 stractBuchiCegarLoop]: Abstraction has 517 states and 775 transitions. [2022-11-23 02:17:07,613 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 02:17:07,613 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 517 states and 775 transitions. [2022-11-23 02:17:07,617 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:07,617 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:17:07,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:17:07,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:07,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 02:17:07,619 INFO L748 eck$LassoCheckResult]: Stem: 4003#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 4004#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 4018#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 4019#fiboENTRY ~n := #in~n; 4085#L8 assume !(~n < 1); 4084#L10 assume !(1 == ~n); 4080#L13 call #t~ret4 := fibo(~n - 1);< 4083#fiboENTRY ~n := #in~n; 4082#L8 assume !(~n < 1); 4081#L10 assume !(1 == ~n); 4076#L13 call #t~ret4 := fibo(~n - 1);< 4079#fiboENTRY ~n := #in~n; 4078#L8 assume !(~n < 1); 4077#L10 assume !(1 == ~n); 4073#L13 call #t~ret4 := fibo(~n - 1);< 4075#fiboENTRY ~n := #in~n; 4074#L8 assume !(~n < 1); 4072#L10 assume !(1 == ~n); 4055#L13 call #t~ret4 := fibo(~n - 1);< 4069#fiboENTRY ~n := #in~n; 4070#L8 assume !(~n < 1); 4121#L10 assume !(1 == ~n); 4054#L13 call #t~ret4 := fibo(~n - 1);< 4069#fiboENTRY ~n := #in~n; 4071#L8 assume !(~n < 1); 4053#L10 assume 1 == ~n;#res := 1; 4056#fiboFINAL assume true; 4209#fiboEXIT >#33#return; 4206#L13-1 call #t~ret5 := fibo(~n - 2);< 4208#fiboENTRY ~n := #in~n; 4370#L8 assume !(~n < 1); 4351#L10 assume !(1 == ~n); 4353#L13 call #t~ret4 := fibo(~n - 1);< 4368#fiboENTRY ~n := #in~n; 4379#L8 assume !(~n < 1); 4371#L10 assume !(1 == ~n); 4372#L13 call #t~ret4 := fibo(~n - 1);< 4385#fiboENTRY [2022-11-23 02:17:07,619 INFO L750 eck$LassoCheckResult]: Loop: 4385#fiboENTRY ~n := #in~n; 4400#L8 assume !(~n < 1); 4399#L10 assume !(1 == ~n); 4381#L13 call #t~ret4 := fibo(~n - 1);< 4385#fiboENTRY [2022-11-23 02:17:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:07,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1831142574, now seen corresponding path program 1 times [2022-11-23 02:17:07,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:07,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725835909] [2022-11-23 02:17:07,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:07,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-23 02:17:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:07,901 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 02:17:07,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:07,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725835909] [2022-11-23 02:17:07,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725835909] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:17:07,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375107263] [2022-11-23 02:17:07,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:07,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:17:07,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:07,906 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:17:07,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-11-23 02:17:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:07,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-23 02:17:07,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:08,054 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 02:17:08,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:17:08,217 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 46 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 02:17:08,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375107263] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:17:08,217 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:17:08,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2022-11-23 02:17:08,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006751046] [2022-11-23 02:17:08,218 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:17:08,220 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:17:08,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:08,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1450956, now seen corresponding path program 2 times [2022-11-23 02:17:08,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:08,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778704340] [2022-11-23 02:17:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:08,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:08,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:17:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:08,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:17:08,263 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:08,263 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:08,263 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:08,264 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:08,264 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:17:08,264 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,264 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:08,264 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:08,264 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2022-11-23 02:17:08,264 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:08,265 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:08,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,270 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,278 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,309 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:08,310 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:17:08,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,311 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:08,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:08,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-11-23 02:17:08,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:08,348 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:08,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,355 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:08,364 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:08,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-11-23 02:17:08,385 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:08,385 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:08,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,391 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,395 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:08,395 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:08,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-11-23 02:17:08,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-23 02:17:08,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-23 02:17:08,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,426 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,431 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:08,431 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:08,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-11-23 02:17:08,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,465 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:17:08,471 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:08,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-11-23 02:17:08,505 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:17:08,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,510 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:08,510 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:08,510 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:08,510 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:08,510 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:17:08,510 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,510 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:08,510 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:08,510 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2022-11-23 02:17:08,510 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:08,510 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:08,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,514 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,517 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,522 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:08,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:08,562 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:17:08,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,564 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,572 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 [2022-11-23 02:17:08,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-11-23 02:17:08,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:08,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:08,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:08,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:08,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:08,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:08,585 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:08,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:08,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,592 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-11-23 02:17:08,596 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 [2022-11-23 02:17:08,606 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:08,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:08,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:08,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:08,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:08,607 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:08,607 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:08,611 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:08,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,617 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-11-23 02:17:08,619 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 [2022-11-23 02:17:08,629 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:08,629 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:08,629 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:08,629 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:08,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:08,630 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:08,630 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:08,637 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:08,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-11-23 02:17:08,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,641 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-11-23 02:17:08,645 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 [2022-11-23 02:17:08,655 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:08,655 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:08,655 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:08,655 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:08,655 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:08,659 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:08,659 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:08,665 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-23 02:17:08,668 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,669 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-11-23 02:17:08,671 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 [2022-11-23 02:17:08,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:08,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:08,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:08,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:08,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:08,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:08,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:08,685 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:17:08,687 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-23 02:17:08,687 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-23 02:17:08,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:08,690 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:08,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-11-23 02:17:08,692 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:17:08,692 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:17:08,692 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:17:08,692 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2022-11-23 02:17:08,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:08,696 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:17:08,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:08,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:08,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 02:17:08,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:08,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:08,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:08,911 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-23 02:17:08,911 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:08,983 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 533 states and 791 transitions. Complement of second has 13 states. [2022-11-23 02:17:08,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:08,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:08,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-23 02:17:08,986 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-23 02:17:08,986 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:08,986 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 02:17:08,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:09,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 02:17:09,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:09,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:09,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:09,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:09,178 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-23 02:17:09,178 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:09,243 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 533 states and 791 transitions. Complement of second has 13 states. [2022-11-23 02:17:09,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2022-11-23 02:17:09,244 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-23 02:17:09,244 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:09,245 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 02:17:09,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:09,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-23 02:17:09,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:09,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:09,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:09,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:09,471 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2022-11-23 02:17:09,472 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:09,551 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 517 states and 775 transitions. cyclomatic complexity: 268. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 692 states and 973 transitions. Complement of second has 14 states. [2022-11-23 02:17:09,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:09,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2022-11-23 02:17:09,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 37 letters. Loop has 4 letters. [2022-11-23 02:17:09,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:09,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 41 letters. Loop has 4 letters. [2022-11-23 02:17:09,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:09,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 37 letters. Loop has 8 letters. [2022-11-23 02:17:09,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:09,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 692 states and 973 transitions. [2022-11-23 02:17:09,564 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:09,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 692 states to 579 states and 848 transitions. [2022-11-23 02:17:09,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 208 [2022-11-23 02:17:09,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 217 [2022-11-23 02:17:09,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 579 states and 848 transitions. [2022-11-23 02:17:09,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:09,573 INFO L218 hiAutomatonCegarLoop]: Abstraction has 579 states and 848 transitions. [2022-11-23 02:17:09,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states and 848 transitions. [2022-11-23 02:17:09,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 549. [2022-11-23 02:17:09,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 343 states have (on average 1.1749271137026238) internal successors, (403), 366 states have internal predecessors, (403), 121 states have call successors, (135), 62 states have call predecessors, (135), 85 states have return successors, (274), 120 states have call predecessors, (274), 115 states have call successors, (274) [2022-11-23 02:17:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 812 transitions. [2022-11-23 02:17:09,592 INFO L240 hiAutomatonCegarLoop]: Abstraction has 549 states and 812 transitions. [2022-11-23 02:17:09,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:09,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 02:17:09,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2022-11-23 02:17:09,593 INFO L87 Difference]: Start difference. First operand 549 states and 812 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 12 states have internal predecessors, (30), 7 states have call successors, (8), 7 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:09,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:17:09,839 INFO L93 Difference]: Finished difference Result 659 states and 996 transitions. [2022-11-23 02:17:09,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 659 states and 996 transitions. [2022-11-23 02:17:09,848 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:09,857 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 659 states to 642 states and 974 transitions. [2022-11-23 02:17:09,857 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 244 [2022-11-23 02:17:09,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 244 [2022-11-23 02:17:09,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 642 states and 974 transitions. [2022-11-23 02:17:09,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:09,858 INFO L218 hiAutomatonCegarLoop]: Abstraction has 642 states and 974 transitions. [2022-11-23 02:17:09,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states and 974 transitions. [2022-11-23 02:17:09,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 588. [2022-11-23 02:17:09,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 366 states have (on average 1.169398907103825) internal successors, (428), 394 states have internal predecessors, (428), 134 states have call successors, (150), 69 states have call predecessors, (150), 88 states have return successors, (297), 124 states have call predecessors, (297), 127 states have call successors, (297) [2022-11-23 02:17:09,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 875 transitions. [2022-11-23 02:17:09,881 INFO L240 hiAutomatonCegarLoop]: Abstraction has 588 states and 875 transitions. [2022-11-23 02:17:09,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 02:17:09,882 INFO L428 stractBuchiCegarLoop]: Abstraction has 588 states and 875 transitions. [2022-11-23 02:17:09,882 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-11-23 02:17:09,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 588 states and 875 transitions. [2022-11-23 02:17:09,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:09,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:17:09,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:17:09,888 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:17:09,888 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-11-23 02:17:09,888 INFO L748 eck$LassoCheckResult]: Stem: 8177#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3); 8178#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7; 8193#L27 call main_#t~ret6#1 := fibo(main_~x~0#1);< 8194#fiboENTRY ~n := #in~n; 8284#L8 assume !(~n < 1); 8254#L10 assume !(1 == ~n); 8250#L13 call #t~ret4 := fibo(~n - 1);< 8267#fiboENTRY ~n := #in~n; 8256#L8 assume !(~n < 1); 8257#L10 assume !(1 == ~n); 8249#L13 call #t~ret4 := fibo(~n - 1);< 8251#fiboENTRY ~n := #in~n; 8269#L8 assume !(~n < 1); 8266#L10 assume !(1 == ~n); 8262#L13 call #t~ret4 := fibo(~n - 1);< 8265#fiboENTRY ~n := #in~n; 8318#L8 assume !(~n < 1); 8296#L10 assume !(1 == ~n); 8291#L13 call #t~ret4 := fibo(~n - 1);< 8294#fiboENTRY ~n := #in~n; 8375#L8 assume !(~n < 1); 8372#L10 assume !(1 == ~n); 8186#L13 call #t~ret4 := fibo(~n - 1);< 8363#fiboENTRY ~n := #in~n; 8377#L8 assume !(~n < 1); 8374#L10 assume !(1 == ~n); 8187#L13 call #t~ret4 := fibo(~n - 1);< 8363#fiboENTRY ~n := #in~n; 8378#L8 assume !(~n < 1); 8598#L10 assume 1 == ~n;#res := 1; 8596#fiboFINAL assume true; 8589#fiboEXIT >#33#return; 8209#L13-1 call #t~ret5 := fibo(~n - 2);< 8578#fiboENTRY ~n := #in~n; 8625#L8 assume !(~n < 1); 8623#L10 assume !(1 == ~n); 8239#L13 call #t~ret4 := fibo(~n - 1);< 8634#fiboENTRY ~n := #in~n; 8645#L8 assume !(~n < 1); 8238#L10 assume !(1 == ~n); 8229#L13 call #t~ret4 := fibo(~n - 1);< 8226#fiboENTRY ~n := #in~n; 8230#L8 assume !(~n < 1); 8686#L10 assume !(1 == ~n); 8228#L13 [2022-11-23 02:17:09,888 INFO L750 eck$LassoCheckResult]: Loop: 8228#L13 call #t~ret4 := fibo(~n - 1);< 8226#fiboENTRY ~n := #in~n; 8230#L8 assume !(~n < 1); 8686#L10 assume !(1 == ~n); 8228#L13 [2022-11-23 02:17:09,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:09,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1118344712, now seen corresponding path program 2 times [2022-11-23 02:17:09,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:09,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355099734] [2022-11-23 02:17:09,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:09,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:10,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-23 02:17:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:10,146 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:17:10,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:17:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355099734] [2022-11-23 02:17:10,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355099734] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 02:17:10,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727029641] [2022-11-23 02:17:10,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 02:17:10,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 02:17:10,147 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:10,149 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 02:17:10,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2022-11-23 02:17:10,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 02:17:10,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 02:17:10,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 02:17:10,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:17:10,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 02:17:10,448 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 139 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 02:17:10,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727029641] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 02:17:10,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 02:17:10,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 17 [2022-11-23 02:17:10,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201389688] [2022-11-23 02:17:10,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 02:17:10,451 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-11-23 02:17:10,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:10,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1893846, now seen corresponding path program 3 times [2022-11-23 02:17:10,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:17:10,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847359528] [2022-11-23 02:17:10,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:17:10,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:17:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:10,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:17:10,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:17:10,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:17:10,521 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:10,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:10,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:10,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:10,522 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-23 02:17:10,522 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:10,522 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:10,522 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:10,522 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2022-11-23 02:17:10,522 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:10,522 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:10,523 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:10,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:10,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:10,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:10,586 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:10,586 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-23 02:17:10,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:10,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:10,588 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:10,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-23 02:17:10,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:10,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-11-23 02:17:10,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:10,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:10,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:10,649 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:10,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-11-23 02:17:10,653 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-23 02:17:10,653 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-23 02:17:11,427 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-23 02:17:11,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-11-23 02:17:11,431 INFO L210 LassoAnalysis]: Preferences: [2022-11-23 02:17:11,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-23 02:17:11,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-23 02:17:11,431 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-23 02:17:11,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-23 02:17:11,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:11,431 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-23 02:17:11,431 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-23 02:17:11,431 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2022-11-23 02:17:11,431 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-23 02:17:11,432 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-23 02:17:11,432 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:11,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:11,451 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:11,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-23 02:17:11,503 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-23 02:17:11,503 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-23 02:17:11,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:11,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:11,505 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:11,534 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 [2022-11-23 02:17:11,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-23 02:17:11,547 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-23 02:17:11,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-23 02:17:11,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-23 02:17:11,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-23 02:17:11,548 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-23 02:17:11,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-23 02:17:11,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-11-23 02:17:11,563 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-23 02:17:11,577 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-23 02:17:11,577 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-11-23 02:17:11,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:17:11,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:17:11,583 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:17:11,588 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-23 02:17:11,588 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-23 02:17:11,588 INFO L513 LassoAnalysis]: Proved termination. [2022-11-23 02:17:11,588 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2022-11-23 02:17:11,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-11-23 02:17:11,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:11,596 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-23 02:17:11,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:11,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 02:17:11,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:11,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:11,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:11,818 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-23 02:17:11,818 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:11,876 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 606 states and 894 transitions. Complement of second has 18 states. [2022-11-23 02:17:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:11,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2022-11-23 02:17:11,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 44 letters. Loop has 4 letters. [2022-11-23 02:17:11,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:11,879 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-11-23 02:17:11,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:17:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:11,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-23 02:17:11,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:17:12,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 02:17:12,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:17:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:17:12,100 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2022-11-23 02:17:12,100 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:12,199 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 875 transitions. cyclomatic complexity: 297. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 836 states and 1216 transitions. Complement of second has 22 states. [2022-11-23 02:17:12,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2022-11-23 02:17:12,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2022-11-23 02:17:12,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 44 letters. Loop has 4 letters. [2022-11-23 02:17:12,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:12,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 48 letters. Loop has 4 letters. [2022-11-23 02:17:12,201 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:12,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 16 transitions. Stem has 44 letters. Loop has 8 letters. [2022-11-23 02:17:12,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-23 02:17:12,202 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 836 states and 1216 transitions. [2022-11-23 02:17:12,213 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2022-11-23 02:17:12,226 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 836 states to 766 states and 1141 transitions. [2022-11-23 02:17:12,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 253 [2022-11-23 02:17:12,227 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2022-11-23 02:17:12,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 766 states and 1141 transitions. [2022-11-23 02:17:12,227 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-11-23 02:17:12,227 INFO L218 hiAutomatonCegarLoop]: Abstraction has 766 states and 1141 transitions. [2022-11-23 02:17:12,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states and 1141 transitions. [2022-11-23 02:17:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 753. [2022-11-23 02:17:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 476 states have (on average 1.1470588235294117) internal successors, (546), 512 states have internal predecessors, (546), 167 states have call successors, (201), 96 states have call predecessors, (201), 110 states have return successors, (377), 144 states have call predecessors, (377), 160 states have call successors, (377) [2022-11-23 02:17:12,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1124 transitions. [2022-11-23 02:17:12,256 INFO L240 hiAutomatonCegarLoop]: Abstraction has 753 states and 1124 transitions. [2022-11-23 02:17:12,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:17:12,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-23 02:17:12,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-11-23 02:17:12,257 INFO L87 Difference]: Start difference. First operand 753 states and 1124 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 10 states have internal predecessors, (29), 8 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:17:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:17:12,496 INFO L93 Difference]: Finished difference Result 321 states and 378 transitions. [2022-11-23 02:17:12,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 321 states and 378 transitions. [2022-11-23 02:17:12,500 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:17:12,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 321 states to 0 states and 0 transitions. [2022-11-23 02:17:12,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-23 02:17:12,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-23 02:17:12,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-23 02:17:12,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:17:12,501 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:17:12,501 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:17:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-23 02:17:12,502 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 02:17:12,502 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-11-23 02:17:12,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-23 02:17:12,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-23 02:17:12,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-23 02:17:12,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:17:12 BoogieIcfgContainer [2022-11-23 02:17:12,511 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:17:12,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:17:12,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:17:12,512 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:17:12,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:16:58" (3/4) ... [2022-11-23 02:17:12,515 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:17:12,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:17:12,516 INFO L158 Benchmark]: Toolchain (without parser) took 14419.96ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 145.1MB in the beginning and 81.9MB in the end (delta: 63.2MB). Peak memory consumption was 99.5MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,516 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:17:12,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.97ms. Allocated memory is still 176.2MB. Free memory was 144.5MB in the beginning and 135.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.44ms. Allocated memory is still 176.2MB. Free memory was 135.2MB in the beginning and 133.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,517 INFO L158 Benchmark]: Boogie Preprocessor took 20.11ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 132.5MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,517 INFO L158 Benchmark]: RCFGBuilder took 258.41ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 123.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,518 INFO L158 Benchmark]: BuchiAutomizer took 13883.36ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 123.6MB in the beginning and 82.9MB in the end (delta: 40.6MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. [2022-11-23 02:17:12,518 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 211.8MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:17:12,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.97ms. Allocated memory is still 176.2MB. Free memory was 144.5MB in the beginning and 135.2MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.44ms. Allocated memory is still 176.2MB. Free memory was 135.2MB in the beginning and 133.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.11ms. Allocated memory is still 176.2MB. Free memory was 133.5MB in the beginning and 132.5MB in the end (delta: 931.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 258.41ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 123.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 13883.36ms. Allocated memory was 176.2MB in the beginning and 211.8MB in the end (delta: 35.7MB). Free memory was 123.6MB in the beginning and 82.9MB in the end (delta: 40.6MB). Peak memory consumption was 78.5MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 211.8MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function unknown-#in~n-unknown and consists of 4 locations. One deterministic module has affine ranking function n and consists of 9 locations. One deterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function n and consists of 9 locations. One nondeterministic module has affine ranking function unknown-#in~n-unknown and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.8s and 7 iterations. TraceHistogramMax:10. Analysis of lassos took 7.9s. Construction of modules took 1.0s. Büchi inclusion checks took 4.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 238 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 516 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 491 mSDsluCounter, 511 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 312 mSDsCounter, 348 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 348 mSolverCounterUnsat, 199 mSDtfsCounter, 1202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp92 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf92 smp81 dnf100 smp100 tf110 neg96 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 75ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-23 02:17:12,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-11-23 02:17:12,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2022-11-23 02:17:12,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2022-11-23 02:17:13,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-11-23 02:17:13,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-23 02:17:13,541 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c1efcec-21bc-4813-ad80-629c480cba7b/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE