./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY --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 e0068f83ad7eb3861b59041e8ebf2a38df44c3a60c0fafaf2450f6b793a60fbe --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:35:14,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:35:14,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:35:15,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:35:15,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:35:15,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:35:15,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:35:15,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:35:15,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:35:15,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:35:15,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:35:15,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:35:15,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:35:15,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:35:15,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:35:15,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:35:15,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:35:15,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:35:15,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:35:15,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:35:15,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:35:15,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:35:15,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:35:15,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:35:15,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:35:15,071 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:35:15,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:35:15,074 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:35:15,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:35:15,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:35:15,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:35:15,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:35:15,079 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:35:15,080 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:35:15,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:35:15,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:35:15,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:35:15,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:35:15,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:35:15,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:35:15,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:35:15,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-07 07:35:15,135 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:35:15,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:35:15,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:35:15,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:35:15,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:35:15,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:35:15,138 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:35:15,138 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-07 07:35:15,139 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-07 07:35:15,139 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-07 07:35:15,140 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-07 07:35:15,140 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-07 07:35:15,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-07 07:35:15,141 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:35:15,141 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:35:15,141 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:35:15,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:35:15,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:35:15,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:35:15,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-07 07:35:15,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-07 07:35:15,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-07 07:35:15,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:35:15,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:35:15,143 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-07 07:35:15,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:35:15,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-07 07:35:15,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:35:15,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:35:15,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:35:15,146 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:35:15,146 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:35:15,147 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-07 07:35:15,147 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_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0068f83ad7eb3861b59041e8ebf2a38df44c3a60c0fafaf2450f6b793a60fbe [2021-11-07 07:35:15,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:35:15,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:35:15,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:35:15,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:35:15,472 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:35:15,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2021-11-07 07:35:15,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/data/37797e326/8b41d4c407824d388083a558e62ebaf2/FLAGdcaeb9bbc [2021-11-07 07:35:16,037 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:35:16,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2021-11-07 07:35:16,050 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/data/37797e326/8b41d4c407824d388083a558e62ebaf2/FLAGdcaeb9bbc [2021-11-07 07:35:16,421 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/data/37797e326/8b41d4c407824d388083a558e62ebaf2 [2021-11-07 07:35:16,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:35:16,426 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:35:16,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:35:16,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:35:16,431 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:35:16,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715becd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16, skipping insertion in model container [2021-11-07 07:35:16,434 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:35:16,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:35:16,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c[946,959] [2021-11-07 07:35:16,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:35:16,695 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:35:16,712 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c[946,959] [2021-11-07 07:35:16,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:35:16,725 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:35:16,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16 WrapperNode [2021-11-07 07:35:16,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:35:16,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:35:16,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:35:16,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:35:16,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:35:16,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:35:16,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:35:16,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:35:16,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,778 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:35:16,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:35:16,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:35:16,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:35:16,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (1/1) ... [2021-11-07 07:35:16,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:16,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:16,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:16,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-07 07:35:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:35:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-11-07 07:35:16,875 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-11-07 07:35:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:35:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-11-07 07:35:16,875 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-11-07 07:35:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:35:16,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:35:17,068 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:35:17,069 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 07:35:17,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:35:17 BoogieIcfgContainer [2021-11-07 07:35:17,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:35:17,072 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-07 07:35:17,072 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-07 07:35:17,075 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-07 07:35:17,076 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:35:17,076 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.11 07:35:16" (1/3) ... [2021-11-07 07:35:17,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4754a530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:35:17, skipping insertion in model container [2021-11-07 07:35:17,078 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:35:17,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:35:16" (2/3) ... [2021-11-07 07:35:17,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4754a530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.11 07:35:17, skipping insertion in model container [2021-11-07 07:35:17,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-07 07:35:17,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:35:17" (3/3) ... [2021-11-07 07:35:17,080 INFO L389 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_6-1.c [2021-11-07 07:35:17,125 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-07 07:35:17,125 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-07 07:35:17,125 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-07 07:35:17,126 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-07 07:35:17,126 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-07 07:35:17,126 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-07 07:35:17,126 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-07 07:35:17,126 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-07 07:35:17,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 07:35:17,169 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:17,170 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:17,170 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:17,178 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 07:35:17,178 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:17,178 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-07 07:35:17,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 07:35:17,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:17,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:17,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:17,186 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-07 07:35:17,186 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:17,209 INFO L791 eck$LassoCheckResult]: Stem: 16#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 15#L39true call main_#t~ret11 := fibo1(main_~x~0);< 5#fibo1ENTRYtrue [2021-11-07 07:35:17,210 INFO L793 eck$LassoCheckResult]: Loop: 5#fibo1ENTRYtrue ~n := #in~n; 9#L10true assume !(~n < 1); 8#L12true assume !(1 == ~n); 10#L15true call #t~ret7 := fibo2(~n - 1);< 14#fibo2ENTRYtrue ~n := #in~n; 12#L20true assume !(~n < 1); 17#L22true assume !(1 == ~n); 23#L25true call #t~ret9 := fibo1(~n - 1);< 5#fibo1ENTRYtrue [2021-11-07 07:35:17,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:17,216 INFO L85 PathProgramCache]: Analyzing trace with hash 29896, now seen corresponding path program 1 times [2021-11-07 07:35:17,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:17,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327915156] [2021-11-07 07:35:17,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:17,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,475 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:17,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:17,481 INFO L85 PathProgramCache]: Analyzing trace with hash 181289832, now seen corresponding path program 1 times [2021-11-07 07:35:17,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:17,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670470844] [2021-11-07 07:35:17,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:17,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,507 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:17,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,515 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:17,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:17,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1313669423, now seen corresponding path program 1 times [2021-11-07 07:35:17,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:17,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526623315] [2021-11-07 07:35:17,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:17,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,536 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:17,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:17,844 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:17,845 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:17,845 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:17,846 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:17,846 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:17,846 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:17,846 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:17,847 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:17,847 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration1_Loop [2021-11-07 07:35:17,847 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:17,847 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:17,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,871 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,876 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:17,980 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:17,981 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:17,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:17,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:17,988 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:17,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:17,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-07 07:35:18,024 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,025 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,062 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,064 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-07 07:35:18,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,092 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-07 07:35:18,168 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,168 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,206 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,212 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,213 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-07 07:35:18,232 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,232 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-07 07:35:18,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,298 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,298 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,321 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-07 07:35:18,332 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,354 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,392 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-07 07:35:18,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,409 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,444 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,444 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,466 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-11-07 07:35:18,467 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-07 07:35:18,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,532 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:18,532 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:18,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,564 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-07 07:35:18,567 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:18,567 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:18,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:18,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-07 07:35:18,722 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:18,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,726 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:18,726 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:18,726 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:18,726 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:18,727 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:18,727 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,727 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:18,727 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:18,727 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration1_Loop [2021-11-07 07:35:18,727 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:18,727 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:18,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:18,820 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:18,825 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:18,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,828 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,837 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:18,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:18,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:18,848 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:18,848 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:18,848 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:18,850 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:18,851 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:18,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-07 07:35:18,864 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:18,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,895 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-07 07:35:18,896 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:18,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:18,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:18,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:18,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:18,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:18,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:18,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:18,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:18,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,939 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,940 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:18,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-07 07:35:18,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:18,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:18,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:18,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:18,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:18,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:18,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:18,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:18,960 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:18,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:18,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:18,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:18,997 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-07 07:35:19,003 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:19,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,010 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,011 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,011 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,011 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:19,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,064 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,068 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,074 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:19,083 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,083 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,083 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,083 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,083 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,084 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-11-07 07:35:19,100 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:19,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,137 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:19,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,152 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,154 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,154 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-11-07 07:35:19,171 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:19,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,209 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-11-07 07:35:19,213 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 [2021-11-07 07:35:19,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,240 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:19,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,278 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,283 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:19,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-11-07 07:35:19,307 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:19,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,345 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,354 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:19,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:19,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:19,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:19,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:19,363 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:19,364 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:19,365 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:19,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-11-07 07:35:19,383 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:19,396 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-07 07:35:19,396 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 07:35:19,398 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:19,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:19,399 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:19,417 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:19,417 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:19,417 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:19,418 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2021-11-07 07:35:19,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-11-07 07:35:19,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:19,452 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:19,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:19,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:19,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 07:35:19,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:19,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:19,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:19,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:19,705 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2021-11-07 07:35:19,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:19,884 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 26 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 84 states and 116 transitions. Complement of second has 24 states. [2021-11-07 07:35:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:19,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 21 transitions. [2021-11-07 07:35:19,889 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 8 letters. [2021-11-07 07:35:19,890 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:19,890 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 11 letters. Loop has 8 letters. [2021-11-07 07:35:19,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:19,891 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 21 transitions. Stem has 3 letters. Loop has 16 letters. [2021-11-07 07:35:19,891 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:19,892 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-11-07 07:35:19,899 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:19,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 61 states and 82 transitions. [2021-11-07 07:35:19,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2021-11-07 07:35:19,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 40 [2021-11-07 07:35:19,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 61 states and 82 transitions. [2021-11-07 07:35:19,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:19,910 INFO L681 BuchiCegarLoop]: Abstraction has 61 states and 82 transitions. [2021-11-07 07:35:19,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states and 82 transitions. [2021-11-07 07:35:19,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 54. [2021-11-07 07:35:19,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2021-11-07 07:35:19,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2021-11-07 07:35:19,951 INFO L704 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-11-07 07:35:19,951 INFO L587 BuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2021-11-07 07:35:19,951 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-07 07:35:19,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2021-11-07 07:35:19,954 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:19,954 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:19,954 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:19,955 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:19,955 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:19,956 INFO L791 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 197#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 214#L39 call main_#t~ret11 := fibo1(main_~x~0);< 213#fibo1ENTRY ~n := #in~n; 215#L10 assume !(~n < 1); 226#L12 assume !(1 == ~n); 208#L15 call #t~ret7 := fibo2(~n - 1);< 230#fibo2ENTRY ~n := #in~n; 236#L20 assume !(~n < 1); 249#L22 assume !(1 == ~n); 204#L25 call #t~ret9 := fibo1(~n - 1);< 216#fibo1ENTRY ~n := #in~n; 217#L10 assume ~n < 1;#res := 0; 205#fibo1FINAL assume true; 206#fibo1EXIT >#46#return; 207#L25-1 [2021-11-07 07:35:19,956 INFO L793 eck$LassoCheckResult]: Loop: 207#L25-1 call #t~ret10 := fibo1(~n - 2);< 212#fibo1ENTRY ~n := #in~n; 240#L10 assume !(~n < 1); 241#L12 assume !(1 == ~n); 211#L15 call #t~ret7 := fibo2(~n - 1);< 220#fibo2ENTRY ~n := #in~n; 243#L20 assume !(~n < 1); 242#L22 assume !(1 == ~n); 219#L25 call #t~ret9 := fibo1(~n - 1);< 212#fibo1ENTRY ~n := #in~n; 240#L10 assume ~n < 1;#res := 0; 238#fibo1FINAL assume true; 239#fibo1EXIT >#46#return; 207#L25-1 [2021-11-07 07:35:19,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:19,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1888024054, now seen corresponding path program 1 times [2021-11-07 07:35:19,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:19,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434134491] [2021-11-07 07:35:19,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:19,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 07:35:20,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:35:20,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:20,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434134491] [2021-11-07 07:35:20,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434134491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:20,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:20,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:35:20,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264731759] [2021-11-07 07:35:20,109 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:20,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:20,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1730504828, now seen corresponding path program 1 times [2021-11-07 07:35:20,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:20,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100499947] [2021-11-07 07:35:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:20,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:20,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:35:20,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:20,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100499947] [2021-11-07 07:35:20,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100499947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:35:20,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:35:20,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 07:35:20,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351670681] [2021-11-07 07:35:20,240 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:35:20,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:20,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 07:35:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:35:20,246 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 6 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:35:20,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:20,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:20,343 INFO L93 Difference]: Finished difference Result 68 states and 88 transitions. [2021-11-07 07:35:20,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:35:20,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 68 states and 88 transitions. [2021-11-07 07:35:20,348 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:20,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 68 states to 66 states and 86 transitions. [2021-11-07 07:35:20,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46 [2021-11-07 07:35:20,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 46 [2021-11-07 07:35:20,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 86 transitions. [2021-11-07 07:35:20,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:20,353 INFO L681 BuchiCegarLoop]: Abstraction has 66 states and 86 transitions. [2021-11-07 07:35:20,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 86 transitions. [2021-11-07 07:35:20,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 58. [2021-11-07 07:35:20,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 38 states have (on average 1.263157894736842) internal successors, (48), 42 states have internal predecessors, (48), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (16), 7 states have call predecessors, (16), 10 states have call successors, (16) [2021-11-07 07:35:20,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 76 transitions. [2021-11-07 07:35:20,363 INFO L704 BuchiCegarLoop]: Abstraction has 58 states and 76 transitions. [2021-11-07 07:35:20,363 INFO L587 BuchiCegarLoop]: Abstraction has 58 states and 76 transitions. [2021-11-07 07:35:20,363 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-07 07:35:20,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 76 transitions. [2021-11-07 07:35:20,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2021-11-07 07:35:20,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:20,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:20,367 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:20,367 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:20,367 INFO L791 eck$LassoCheckResult]: Stem: 341#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 342#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 360#L39 call main_#t~ret11 := fibo1(main_~x~0);< 359#fibo1ENTRY ~n := #in~n; 361#L10 assume !(~n < 1); 371#L12 assume !(1 == ~n); 354#L15 call #t~ret7 := fibo2(~n - 1);< 378#fibo2ENTRY ~n := #in~n; 382#L20 assume !(~n < 1); 398#L22 assume !(1 == ~n); 349#L25 call #t~ret9 := fibo1(~n - 1);< 362#fibo1ENTRY ~n := #in~n; 363#L10 assume !(~n < 1); 387#L12 assume 1 == ~n;#res := 1; 386#fibo1FINAL assume true; 385#fibo1EXIT >#46#return; 351#L25-1 [2021-11-07 07:35:20,368 INFO L793 eck$LassoCheckResult]: Loop: 351#L25-1 call #t~ret10 := fibo1(~n - 2);< 358#fibo1ENTRY ~n := #in~n; 375#L10 assume !(~n < 1); 369#L12 assume !(1 == ~n); 357#L15 call #t~ret7 := fibo2(~n - 1);< 391#fibo2ENTRY ~n := #in~n; 390#L20 assume !(~n < 1); 388#L22 assume !(1 == ~n); 352#L25 call #t~ret9 := fibo1(~n - 1);< 358#fibo1ENTRY ~n := #in~n; 375#L10 assume !(~n < 1); 369#L12 assume 1 == ~n;#res := 1; 370#fibo1FINAL assume true; 384#fibo1EXIT >#46#return; 351#L25-1 [2021-11-07 07:35:20,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:20,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1600771562, now seen corresponding path program 1 times [2021-11-07 07:35:20,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:20,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898158342] [2021-11-07 07:35:20,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:20,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 07:35:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:20,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:20,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898158342] [2021-11-07 07:35:20,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898158342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:20,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054869205] [2021-11-07 07:35:20,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:20,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:20,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:20,486 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:20,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 07:35:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:20,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:35:20,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:20,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054869205] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:20,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:20,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-11-07 07:35:20,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428303310] [2021-11-07 07:35:20,648 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:20,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2106067024, now seen corresponding path program 1 times [2021-11-07 07:35:20,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:20,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141965008] [2021-11-07 07:35:20,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:20,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:20,661 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:20,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:20,921 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:20,921 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:20,921 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:20,921 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:20,921 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:20,921 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:20,921 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:20,922 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:20,922 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration3_Loop [2021-11-07 07:35:20,922 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:20,922 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:20,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,938 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,940 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:20,999 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:21,000 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:21,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,001 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:21,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-11-07 07:35:21,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:21,037 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:21,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:21,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,074 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:21,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-11-07 07:35:21,096 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:21,096 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:21,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:21,132 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,136 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:21,139 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-11-07 07:35:21,160 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:21,160 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:21,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:21,197 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,199 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:21,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-11-07 07:35:21,220 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:21,220 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:21,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:21,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,256 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:21,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-11-07 07:35:21,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:21,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:21,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:21,324 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:21,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:21,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:21,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-11-07 07:35:22,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:22,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:22,460 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:22,460 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:22,460 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:22,461 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:22,461 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:22,461 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,461 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:22,461 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:22,461 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration3_Loop [2021-11-07 07:35:22,461 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:22,461 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:22,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:22,538 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:22,538 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:22,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,540 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,549 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:22,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:22,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:22,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:22,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:22,558 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:22,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:22,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:22,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-11-07 07:35:22,572 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:22,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:22,605 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,606 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,608 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:22,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:22,617 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:22,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:22,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:22,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:22,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:22,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:22,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2021-11-07 07:35:22,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:22,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:22,665 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,666 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,668 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:22,678 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:22,678 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:22,678 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:22,678 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:22,678 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:22,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:22,684 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:22,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2021-11-07 07:35:22,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:22,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:22,730 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,731 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,762 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:22,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:22,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:22,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:22,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:22,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:22,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:22,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:22,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2021-11-07 07:35:22,789 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:22,792 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-07 07:35:22,792 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 07:35:22,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:22,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,794 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,795 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:22,795 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:22,795 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:22,796 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2021-11-07 07:35:22,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2021-11-07 07:35:22,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:22,836 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:22,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:22,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:35:22,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:23,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:35:23,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:23,251 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-11-07 07:35:23,252 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20 Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-07 07:35:23,680 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 58 states and 76 transitions. cyclomatic complexity: 20. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 191 states and 263 transitions. Complement of second has 40 states. [2021-11-07 07:35:23,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 6 states have internal predecessors, (22), 4 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-07 07:35:23,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 73 transitions. [2021-11-07 07:35:23,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 14 letters. [2021-11-07 07:35:23,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:23,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 30 letters. Loop has 14 letters. [2021-11-07 07:35:23,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:23,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 73 transitions. Stem has 16 letters. Loop has 28 letters. [2021-11-07 07:35:23,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:23,686 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 263 transitions. [2021-11-07 07:35:23,693 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:23,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 169 states and 237 transitions. [2021-11-07 07:35:23,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 103 [2021-11-07 07:35:23,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 106 [2021-11-07 07:35:23,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 169 states and 237 transitions. [2021-11-07 07:35:23,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:23,701 INFO L681 BuchiCegarLoop]: Abstraction has 169 states and 237 transitions. [2021-11-07 07:35:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states and 237 transitions. [2021-11-07 07:35:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 152. [2021-11-07 07:35:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 102 states have internal predecessors, (122), 35 states have call successors, (36), 19 states have call predecessors, (36), 22 states have return successors, (48), 30 states have call predecessors, (48), 33 states have call successors, (48) [2021-11-07 07:35:23,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 206 transitions. [2021-11-07 07:35:23,720 INFO L704 BuchiCegarLoop]: Abstraction has 152 states and 206 transitions. [2021-11-07 07:35:23,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-07 07:35:23,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:35:23,721 INFO L87 Difference]: Start difference. First operand 152 states and 206 transitions. Second operand has 10 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:35:23,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:23,861 INFO L93 Difference]: Finished difference Result 183 states and 244 transitions. [2021-11-07 07:35:23,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:35:23,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 244 transitions. [2021-11-07 07:35:23,867 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:23,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 180 states and 240 transitions. [2021-11-07 07:35:23,873 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 117 [2021-11-07 07:35:23,874 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2021-11-07 07:35:23,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 180 states and 240 transitions. [2021-11-07 07:35:23,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:23,874 INFO L681 BuchiCegarLoop]: Abstraction has 180 states and 240 transitions. [2021-11-07 07:35:23,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states and 240 transitions. [2021-11-07 07:35:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2021-11-07 07:35:23,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 113 states have internal predecessors, (130), 38 states have call successors, (40), 20 states have call predecessors, (40), 26 states have return successors, (55), 33 states have call predecessors, (55), 36 states have call successors, (55) [2021-11-07 07:35:23,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2021-11-07 07:35:23,893 INFO L704 BuchiCegarLoop]: Abstraction has 167 states and 225 transitions. [2021-11-07 07:35:23,893 INFO L587 BuchiCegarLoop]: Abstraction has 167 states and 225 transitions. [2021-11-07 07:35:23,893 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-07 07:35:23,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 225 transitions. [2021-11-07 07:35:23,896 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:23,896 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:23,896 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:23,901 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [8, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-07 07:35:23,901 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-07 07:35:23,902 INFO L791 eck$LassoCheckResult]: Stem: 1156#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 1157#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 1185#L39 call main_#t~ret11 := fibo1(main_~x~0);< 1219#fibo1ENTRY ~n := #in~n; 1207#L10 assume !(~n < 1); 1202#L12 assume !(1 == ~n); 1165#L15 call #t~ret7 := fibo2(~n - 1);< 1208#fibo2ENTRY ~n := #in~n; 1215#L20 assume !(~n < 1); 1164#L22 assume !(1 == ~n); 1166#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1250#L10 assume !(~n < 1); 1249#L12 assume !(1 == ~n); 1188#L15 call #t~ret7 := fibo2(~n - 1);< 1248#fibo2ENTRY ~n := #in~n; 1246#L20 assume !(~n < 1); 1247#L22 assume !(1 == ~n); 1186#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1250#L10 assume !(~n < 1); 1249#L12 assume !(1 == ~n); 1188#L15 call #t~ret7 := fibo2(~n - 1);< 1248#fibo2ENTRY ~n := #in~n; 1246#L20 assume ~n < 1;#res := 0; 1204#fibo2FINAL assume true; 1205#fibo2EXIT >#50#return; 1187#L15-1 call #t~ret8 := fibo2(~n - 2);< 1191#fibo2ENTRY ~n := #in~n; 1315#L20 assume !(~n < 1); 1314#L22 assume !(1 == ~n); 1186#L25 call #t~ret9 := fibo1(~n - 1);< 1189#fibo1ENTRY ~n := #in~n; 1251#L10 assume !(~n < 1); 1255#L12 assume 1 == ~n;#res := 1; 1256#fibo1FINAL assume true; 1245#fibo1EXIT >#46#return; 1236#L25-1 call #t~ret10 := fibo1(~n - 2);< 1178#fibo1ENTRY ~n := #in~n; 1241#L10 assume !(~n < 1); 1240#L12 assume !(1 == ~n); 1177#L15 call #t~ret7 := fibo2(~n - 1);< 1233#fibo2ENTRY ~n := #in~n; 1231#L20 assume ~n < 1;#res := 0; 1232#fibo2FINAL assume true; 1239#fibo2EXIT >#50#return; 1176#L15-1 call #t~ret8 := fibo2(~n - 2);< 1233#fibo2ENTRY ~n := #in~n; 1231#L20 assume !(~n < 1); 1227#L22 assume 1 == ~n;#res := 1; 1228#fibo2FINAL assume true; 1304#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#46#return; 1180#L25-1 call #t~ret10 := fibo1(~n - 2);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#50#return; 1159#L15-1 [2021-11-07 07:35:23,902 INFO L793 eck$LassoCheckResult]: Loop: 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume !(~n < 1); 1158#L22 assume !(1 == ~n); 1163#L25 call #t~ret9 := fibo1(~n - 1);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume !(~n < 1); 1158#L22 assume !(1 == ~n); 1163#L25 call #t~ret9 := fibo1(~n - 1);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#46#return; 1180#L25-1 call #t~ret10 := fibo1(~n - 2);< 1174#fibo1ENTRY ~n := #in~n; 1182#L10 assume !(~n < 1); 1200#L12 assume !(1 == ~n); 1160#L15 call #t~ret7 := fibo2(~n - 1);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#50#return; 1159#L15-1 call #t~ret8 := fibo2(~n - 2);< 1190#fibo2ENTRY ~n := #in~n; 1216#L20 assume ~n < 1;#res := 0; 1162#fibo2FINAL assume true; 1308#fibo2EXIT >#52#return; 1305#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 1317#fibo1FINAL assume true; 1316#fibo1EXIT >#48#return; 1181#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 1309#fibo2FINAL assume true; 1307#fibo2EXIT >#50#return; 1159#L15-1 [2021-11-07 07:35:23,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:23,903 INFO L85 PathProgramCache]: Analyzing trace with hash 376035563, now seen corresponding path program 1 times [2021-11-07 07:35:23,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:23,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947042167] [2021-11-07 07:35:23,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:23,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-07 07:35:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:24,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-07 07:35:24,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,204 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 24 proven. 74 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-11-07 07:35:24,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:24,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947042167] [2021-11-07 07:35:24,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947042167] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:24,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921847301] [2021-11-07 07:35:24,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:24,208 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:24,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:24,220 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:24,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-07 07:35:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 07:35:24,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 17 proven. 91 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-11-07 07:35:24,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921847301] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:24,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:24,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-07 07:35:24,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598424626] [2021-11-07 07:35:24,727 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash 36254641, now seen corresponding path program 1 times [2021-11-07 07:35:24,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:24,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022679400] [2021-11-07 07:35:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:24,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:24,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-07 07:35:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,807 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 13 proven. 15 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-11-07 07:35:24,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:24,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022679400] [2021-11-07 07:35:24,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022679400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:24,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424769117] [2021-11-07 07:35:24,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:24,808 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:24,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:24,809 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:24,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-07 07:35:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:24,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:35:24,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 18 proven. 16 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-07 07:35:25,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424769117] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:25,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:25,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 12 [2021-11-07 07:35:25,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005479641] [2021-11-07 07:35:25,110 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:35:25,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:25,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:35:25,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:35:25,111 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. cyclomatic complexity: 63 Second operand has 12 states, 10 states have (on average 3.1) internal successors, (31), 11 states have internal predecessors, (31), 7 states have call successors, (11), 1 states have call predecessors, (11), 5 states have return successors, (13), 5 states have call predecessors, (13), 7 states have call successors, (13) [2021-11-07 07:35:25,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:25,361 INFO L93 Difference]: Finished difference Result 223 states and 293 transitions. [2021-11-07 07:35:25,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:35:25,361 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 293 transitions. [2021-11-07 07:35:25,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:25,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 200 states and 262 transitions. [2021-11-07 07:35:25,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2021-11-07 07:35:25,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2021-11-07 07:35:25,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 200 states and 262 transitions. [2021-11-07 07:35:25,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:25,373 INFO L681 BuchiCegarLoop]: Abstraction has 200 states and 262 transitions. [2021-11-07 07:35:25,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states and 262 transitions. [2021-11-07 07:35:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 184. [2021-11-07 07:35:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 115 states have (on average 1.182608695652174) internal successors, (136), 125 states have internal predecessors, (136), 38 states have call successors, (39), 24 states have call predecessors, (39), 31 states have return successors, (63), 34 states have call predecessors, (63), 36 states have call successors, (63) [2021-11-07 07:35:25,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2021-11-07 07:35:25,390 INFO L704 BuchiCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-11-07 07:35:25,391 INFO L587 BuchiCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-11-07 07:35:25,391 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-07 07:35:25,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 184 states and 238 transitions. [2021-11-07 07:35:25,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:25,393 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:25,393 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:25,396 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:25,396 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-07 07:35:25,396 INFO L791 eck$LassoCheckResult]: Stem: 2269#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 2270#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 2303#L39 call main_#t~ret11 := fibo1(main_~x~0);< 2337#fibo1ENTRY ~n := #in~n; 2325#L10 assume !(~n < 1); 2318#L12 assume !(1 == ~n); 2319#L15 call #t~ret7 := fibo2(~n - 1);< 2328#fibo2ENTRY ~n := #in~n; 2413#L20 assume !(~n < 1); 2412#L22 assume !(1 == ~n); 2312#L25 call #t~ret9 := fibo1(~n - 1);< 2351#fibo1ENTRY ~n := #in~n; 2349#L10 assume !(~n < 1); 2348#L12 assume !(1 == ~n); 2290#L15 call #t~ret7 := fibo2(~n - 1);< 2342#fibo2ENTRY ~n := #in~n; 2371#L20 assume !(~n < 1); 2369#L22 assume !(1 == ~n); 2280#L25 call #t~ret9 := fibo1(~n - 1);< 2351#fibo1ENTRY ~n := #in~n; 2352#L10 assume !(~n < 1); 2380#L12 assume 1 == ~n;#res := 1; 2381#fibo1FINAL assume true; 2443#fibo1EXIT >#46#return; 2289#L25-1 call #t~ret10 := fibo1(~n - 2);< 2291#fibo1ENTRY ~n := #in~n; 2323#L10 assume ~n < 1;#res := 0; 2324#fibo1FINAL assume true; 2452#fibo1EXIT >#48#return; 2295#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 2419#fibo2FINAL assume true; 2388#fibo2EXIT >#50#return; 2389#L15-1 [2021-11-07 07:35:25,397 INFO L793 eck$LassoCheckResult]: Loop: 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume !(1 == ~n); 2395#L25 call #t~ret9 := fibo1(~n - 1);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume !(1 == ~n); 2395#L25 call #t~ret9 := fibo1(~n - 1);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume 1 == ~n;#res := 1; 2417#fibo2FINAL assume true; 2397#fibo2EXIT >#50#return; 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume ~n < 1;#res := 0; 2414#fibo2FINAL assume true; 2411#fibo2EXIT >#52#return; 2390#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 2410#fibo1FINAL assume true; 2402#fibo1EXIT >#46#return; 2393#L25-1 call #t~ret10 := fibo1(~n - 2);< 2407#fibo1ENTRY ~n := #in~n; 2408#L10 assume !(~n < 1); 2400#L12 assume !(1 == ~n); 2392#L15 call #t~ret7 := fibo2(~n - 1);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume !(~n < 1); 2416#L22 assume 1 == ~n;#res := 1; 2417#fibo2FINAL assume true; 2397#fibo2EXIT >#50#return; 2389#L15-1 call #t~ret8 := fibo2(~n - 2);< 2311#fibo2ENTRY ~n := #in~n; 2415#L20 assume ~n < 1;#res := 0; 2414#fibo2FINAL assume true; 2411#fibo2EXIT >#52#return; 2390#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 2410#fibo1FINAL assume true; 2402#fibo1EXIT >#48#return; 2399#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 2396#fibo2FINAL assume true; 2391#fibo2EXIT >#50#return; 2389#L15-1 [2021-11-07 07:35:25,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:25,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1036448488, now seen corresponding path program 1 times [2021-11-07 07:35:25,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:25,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638663027] [2021-11-07 07:35:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:25,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-07 07:35:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:25,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:25,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:35:25,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:25,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638663027] [2021-11-07 07:35:25,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638663027] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:25,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198129170] [2021-11-07 07:35:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:25,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:25,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:25,577 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:25,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-07 07:35:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:35:25,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:35:25,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198129170] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:25,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:25,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 15 [2021-11-07 07:35:25,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483817430] [2021-11-07 07:35:25,834 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:25,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:25,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1445694181, now seen corresponding path program 1 times [2021-11-07 07:35:25,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:25,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610848285] [2021-11-07 07:35:25,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:25,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-07 07:35:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:25,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-07 07:35:25,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:26,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:26,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,014 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 22 proven. 14 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-07 07:35:26,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:26,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610848285] [2021-11-07 07:35:26,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610848285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:26,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802534732] [2021-11-07 07:35:26,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:26,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:26,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:26,028 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:26,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-07 07:35:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:35:26,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 27 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-07 07:35:26,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802534732] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:26,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:26,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-11-07 07:35:26,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373563238] [2021-11-07 07:35:26,348 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-07 07:35:26,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:26,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 07:35:26,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:35:26,350 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. cyclomatic complexity: 59 Second operand has 16 states, 13 states have (on average 2.230769230769231) internal successors, (29), 11 states have internal predecessors, (29), 8 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 07:35:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:26,630 INFO L93 Difference]: Finished difference Result 206 states and 270 transitions. [2021-11-07 07:35:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-07 07:35:26,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 206 states and 270 transitions. [2021-11-07 07:35:26,636 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:26,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 206 states to 203 states and 266 transitions. [2021-11-07 07:35:26,644 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2021-11-07 07:35:26,644 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2021-11-07 07:35:26,644 INFO L73 IsDeterministic]: Start isDeterministic. Operand 203 states and 266 transitions. [2021-11-07 07:35:26,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:26,647 INFO L681 BuchiCegarLoop]: Abstraction has 203 states and 266 transitions. [2021-11-07 07:35:26,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states and 266 transitions. [2021-11-07 07:35:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 194. [2021-11-07 07:35:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 122 states have (on average 1.1721311475409837) internal successors, (143), 132 states have internal predecessors, (143), 39 states have call successors, (40), 25 states have call predecessors, (40), 33 states have return successors, (68), 36 states have call predecessors, (68), 37 states have call successors, (68) [2021-11-07 07:35:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 251 transitions. [2021-11-07 07:35:26,679 INFO L704 BuchiCegarLoop]: Abstraction has 194 states and 251 transitions. [2021-11-07 07:35:26,679 INFO L587 BuchiCegarLoop]: Abstraction has 194 states and 251 transitions. [2021-11-07 07:35:26,679 INFO L425 BuchiCegarLoop]: ======== Iteration 6============ [2021-11-07 07:35:26,679 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states and 251 transitions. [2021-11-07 07:35:26,682 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 20 [2021-11-07 07:35:26,682 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:26,682 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:26,688 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:26,692 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:26,692 INFO L791 eck$LassoCheckResult]: Stem: 3066#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3067#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 3104#L39 call main_#t~ret11 := fibo1(main_~x~0);< 3135#fibo1ENTRY ~n := #in~n; 3192#L10 assume !(~n < 1); 3191#L12 assume !(1 == ~n); 3076#L15 call #t~ret7 := fibo2(~n - 1);< 3190#fibo2ENTRY ~n := #in~n; 3129#L20 assume !(~n < 1); 3075#L22 assume !(1 == ~n); 3077#L25 call #t~ret9 := fibo1(~n - 1);< 3096#fibo1ENTRY ~n := #in~n; 3097#L10 assume !(~n < 1); 3121#L12 assume !(1 == ~n); 3122#L15 call #t~ret7 := fibo2(~n - 1);< 3126#fibo2ENTRY ~n := #in~n; 3134#L20 assume !(~n < 1); 3181#L22 assume !(1 == ~n); 3116#L25 call #t~ret9 := fibo1(~n - 1);< 3163#fibo1ENTRY ~n := #in~n; 3160#L10 assume !(~n < 1); 3156#L12 assume !(1 == ~n); 3132#L15 call #t~ret7 := fibo2(~n - 1);< 3126#fibo2ENTRY ~n := #in~n; 3134#L20 assume !(~n < 1); 3181#L22 assume !(1 == ~n); 3116#L25 call #t~ret9 := fibo1(~n - 1);< 3163#fibo1ENTRY ~n := #in~n; 3164#L10 assume !(~n < 1); 3188#L12 assume 1 == ~n;#res := 1; 3189#fibo1FINAL assume true; 3243#fibo1EXIT >#46#return; 3227#L25-1 call #t~ret10 := fibo1(~n - 2);< 3228#fibo1ENTRY ~n := #in~n; 3241#L10 assume ~n < 1;#res := 0; 3236#fibo1FINAL assume true; 3226#fibo1EXIT >#48#return; 3225#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 3223#fibo2FINAL assume true; 3222#fibo2EXIT >#50#return; 3072#L15-1 [2021-11-07 07:35:26,692 INFO L793 eck$LassoCheckResult]: Loop: 3072#L15-1 call #t~ret8 := fibo2(~n - 2);< 3133#fibo2ENTRY ~n := #in~n; 3127#L20 assume !(~n < 1); 3068#L22 assume !(1 == ~n); 3074#L25 call #t~ret9 := fibo1(~n - 1);< 3199#fibo1ENTRY ~n := #in~n; 3216#L10 assume !(~n < 1); 3214#L12 assume !(1 == ~n); 3069#L15 call #t~ret7 := fibo2(~n - 1);< 3133#fibo2ENTRY ~n := #in~n; 3127#L20 assume !(~n < 1); 3068#L22 assume 1 == ~n;#res := 1; 3073#fibo2FINAL assume true; 3221#fibo2EXIT >#50#return; 3072#L15-1 [2021-11-07 07:35:26,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:26,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1448014817, now seen corresponding path program 2 times [2021-11-07 07:35:26,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:26,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565893080] [2021-11-07 07:35:26,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:26,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-07 07:35:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:26,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:26,893 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 23 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-07 07:35:26,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:26,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565893080] [2021-11-07 07:35:26,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565893080] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:26,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900537400] [2021-11-07 07:35:26,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:35:26,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:26,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:26,903 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:26,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-07 07:35:27,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:35:27,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:35:27,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 07:35:27,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-07 07:35:27,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900537400] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:27,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:27,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 19 [2021-11-07 07:35:27,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177390105] [2021-11-07 07:35:27,190 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1489002864, now seen corresponding path program 1 times [2021-11-07 07:35:27,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:27,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998347462] [2021-11-07 07:35:27,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:27,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:27,200 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:27,206 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:27,398 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:27,398 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:27,398 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:27,398 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:27,398 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:27,398 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,398 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:27,398 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:27,398 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration6_Loop [2021-11-07 07:35:27,398 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:27,398 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:27,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:27,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:27,472 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:27,472 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,474 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2021-11-07 07:35:27,516 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:27,516 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:27,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,541 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2021-11-07 07:35:27,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,543 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,552 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:27,552 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:27,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:27,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,574 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2021-11-07 07:35:27,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,585 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:27,585 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=1} Honda state: {fibo1_#t~ret7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:27,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:27,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,608 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2021-11-07 07:35:27,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,634 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:27,634 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:27,652 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2021-11-07 07:35:27,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,653 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2021-11-07 07:35:27,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,662 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:27,662 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:27,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:27,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,682 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2021-11-07 07:35:27,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:27,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:27,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2021-11-07 07:35:27,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:27,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:27,711 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:27,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2021-11-07 07:35:27,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:27,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:28,678 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:28,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:28,684 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:28,684 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:28,685 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:28,685 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:28,685 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:28,685 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,685 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:28,685 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:28,685 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration6_Loop [2021-11-07 07:35:28,685 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:28,685 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:28,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,721 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:28,771 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:28,771 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:28,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:28,774 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:28,796 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:28,805 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:28,805 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:28,805 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:28,805 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:28,805 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:28,806 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:28,806 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:28,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2021-11-07 07:35:28,815 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:28,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:28,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:28,853 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:28,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:28,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:28,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:28,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:28,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:28,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:28,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:28,867 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:28,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2021-11-07 07:35:28,887 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:28,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2021-11-07 07:35:28,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:28,909 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:28,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2021-11-07 07:35:28,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:28,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:28,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:28,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:28,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:28,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:28,918 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:28,918 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:28,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:28,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:28,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:28,963 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:28,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2021-11-07 07:35:28,965 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:28,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:28,972 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:28,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:28,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:28,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:28,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:28,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:28,974 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:28,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2021-11-07 07:35:28,993 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:28,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:28,994 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:28,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2021-11-07 07:35:28,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:29,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:29,002 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:29,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:29,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:29,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:29,003 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:29,003 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:29,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:29,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:29,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:29,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:29,044 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:29,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2021-11-07 07:35:29,046 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:29,052 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:29,053 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:29,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:29,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:29,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:29,053 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:29,053 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:29,054 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:29,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:29,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:29,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:29,075 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:29,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2021-11-07 07:35:29,087 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:29,094 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:29,094 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:29,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:29,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:29,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:29,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:29,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:29,105 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:29,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:29,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:29,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:29,126 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:29,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2021-11-07 07:35:29,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:29,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:29,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:29,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:29,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:29,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:29,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:29,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:29,140 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:29,168 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 07:35:29,168 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 07:35:29,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:29,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:29,175 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:29,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:29,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:29,177 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:29,177 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2021-11-07 07:35:29,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2021-11-07 07:35:29,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2021-11-07 07:35:29,210 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:29,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:29,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 07:35:29,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:29,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:35:29,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:29,947 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-11-07 07:35:29,947 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 194 states and 251 transitions. cyclomatic complexity: 62 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-07 07:35:30,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2021-11-07 07:35:30,348 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 194 states and 251 transitions. cyclomatic complexity: 62. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 739 states and 962 transitions. Complement of second has 40 states. [2021-11-07 07:35:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 2 stem states 9 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-07 07:35:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 69 transitions. [2021-11-07 07:35:30,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 40 letters. Loop has 14 letters. [2021-11-07 07:35:30,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:30,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 54 letters. Loop has 14 letters. [2021-11-07 07:35:30,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:30,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 69 transitions. Stem has 40 letters. Loop has 28 letters. [2021-11-07 07:35:30,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:30,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 739 states and 962 transitions. [2021-11-07 07:35:30,371 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 40 [2021-11-07 07:35:30,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 739 states to 668 states and 885 transitions. [2021-11-07 07:35:30,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2021-11-07 07:35:30,388 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-11-07 07:35:30,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 668 states and 885 transitions. [2021-11-07 07:35:30,395 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:30,396 INFO L681 BuchiCegarLoop]: Abstraction has 668 states and 885 transitions. [2021-11-07 07:35:30,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states and 885 transitions. [2021-11-07 07:35:30,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 635. [2021-11-07 07:35:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 397 states have (on average 1.18639798488665) internal successors, (471), 434 states have internal predecessors, (471), 127 states have call successors, (133), 81 states have call predecessors, (133), 111 states have return successors, (236), 119 states have call predecessors, (236), 125 states have call successors, (236) [2021-11-07 07:35:30,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 840 transitions. [2021-11-07 07:35:30,444 INFO L704 BuchiCegarLoop]: Abstraction has 635 states and 840 transitions. [2021-11-07 07:35:30,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:30,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-07 07:35:30,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-11-07 07:35:30,445 INFO L87 Difference]: Start difference. First operand 635 states and 840 transitions. Second operand has 20 states, 17 states have (on average 2.0) internal successors, (34), 14 states have internal predecessors, (34), 9 states have call successors, (10), 6 states have call predecessors, (10), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-11-07 07:35:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:30,921 INFO L93 Difference]: Finished difference Result 685 states and 812 transitions. [2021-11-07 07:35:30,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-07 07:35:30,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 685 states and 812 transitions. [2021-11-07 07:35:30,931 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 48 [2021-11-07 07:35:30,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 685 states to 296 states and 340 transitions. [2021-11-07 07:35:30,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 194 [2021-11-07 07:35:30,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2021-11-07 07:35:30,938 INFO L73 IsDeterministic]: Start isDeterministic. Operand 296 states and 340 transitions. [2021-11-07 07:35:30,938 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:30,938 INFO L681 BuchiCegarLoop]: Abstraction has 296 states and 340 transitions. [2021-11-07 07:35:30,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states and 340 transitions. [2021-11-07 07:35:30,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 258. [2021-11-07 07:35:30,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 166 states have (on average 1.1385542168674698) internal successors, (189), 182 states have internal predecessors, (189), 54 states have call successors, (55), 37 states have call predecessors, (55), 38 states have return successors, (54), 38 states have call predecessors, (54), 41 states have call successors, (54) [2021-11-07 07:35:30,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2021-11-07 07:35:30,954 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-11-07 07:35:30,954 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-11-07 07:35:30,954 INFO L425 BuchiCegarLoop]: ======== Iteration 7============ [2021-11-07 07:35:30,954 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 298 transitions. [2021-11-07 07:35:30,956 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2021-11-07 07:35:30,956 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:30,956 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:30,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:30,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:30,961 INFO L791 eck$LassoCheckResult]: Stem: 5754#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 5755#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 5783#L39 call main_#t~ret11 := fibo1(main_~x~0);< 5817#fibo1ENTRY ~n := #in~n; 5903#L10 assume !(~n < 1); 5901#L12 assume !(1 == ~n); 5796#L15 call #t~ret7 := fibo2(~n - 1);< 5900#fibo2ENTRY ~n := #in~n; 5899#L20 assume !(~n < 1); 5897#L22 assume !(1 == ~n); 5781#L25 call #t~ret9 := fibo1(~n - 1);< 5780#fibo1ENTRY ~n := #in~n; 5782#L10 assume !(~n < 1); 5798#L12 assume !(1 == ~n); 5799#L15 call #t~ret7 := fibo2(~n - 1);< 5891#fibo2ENTRY ~n := #in~n; 5930#L20 assume !(~n < 1); 5929#L22 assume !(1 == ~n); 5892#L25 call #t~ret9 := fibo1(~n - 1);< 5926#fibo1ENTRY ~n := #in~n; 5927#L10 assume !(~n < 1); 5958#L12 assume !(1 == ~n); 5937#L15 call #t~ret7 := fibo2(~n - 1);< 5938#fibo2ENTRY ~n := #in~n; 5957#L20 assume !(~n < 1); 5955#L22 assume 1 == ~n;#res := 1; 5954#fibo2FINAL assume true; 5936#fibo2EXIT >#50#return; 5934#L15-1 call #t~ret8 := fibo2(~n - 2);< 5935#fibo2ENTRY ~n := #in~n; 5970#L20 assume ~n < 1;#res := 0; 5969#fibo2FINAL assume true; 5933#fibo2EXIT >#52#return; 5932#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 5931#fibo1FINAL assume true; 5928#fibo1EXIT >#46#return; 5836#L25-1 call #t~ret10 := fibo1(~n - 2);< 5880#fibo1ENTRY ~n := #in~n; 5887#L10 assume ~n < 1;#res := 0; 5885#fibo1FINAL assume true; 5871#fibo1EXIT >#48#return; 5872#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 5987#fibo2FINAL assume true; 5986#fibo2EXIT >#50#return; 5790#L15-1 call #t~ret8 := fibo2(~n - 2);< 5908#fibo2ENTRY [2021-11-07 07:35:30,962 INFO L793 eck$LassoCheckResult]: Loop: 5908#fibo2ENTRY ~n := #in~n; 5941#L20 assume !(~n < 1); 5912#L22 assume !(1 == ~n); 5878#L25 call #t~ret9 := fibo1(~n - 1);< 5884#fibo1ENTRY ~n := #in~n; 5918#L10 assume !(~n < 1); 5915#L12 assume !(1 == ~n); 5791#L15 call #t~ret7 := fibo2(~n - 1);< 5908#fibo2ENTRY [2021-11-07 07:35:30,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:30,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1055972758, now seen corresponding path program 1 times [2021-11-07 07:35:30,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:30,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921032670] [2021-11-07 07:35:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:30,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:30,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-07 07:35:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-07 07:35:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 27 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-07 07:35:31,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:31,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921032670] [2021-11-07 07:35:31,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921032670] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:31,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050265283] [2021-11-07 07:35:31,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:31,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:31,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,172 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-07 07:35:31,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:31,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:35:31,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:31,537 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 8 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 07:35:31,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050265283] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:31,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:31,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 18 [2021-11-07 07:35:31,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735727523] [2021-11-07 07:35:31,539 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:31,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:31,539 INFO L85 PathProgramCache]: Analyzing trace with hash -28526872, now seen corresponding path program 2 times [2021-11-07 07:35:31,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:31,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313029276] [2021-11-07 07:35:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:31,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:31,545 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:31,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:31,548 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:31,654 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:31,654 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:31,654 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:31,654 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:31,654 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:31,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:31,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:31,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration7_Loop [2021-11-07 07:35:31,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:31,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:31,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,662 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,667 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,676 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:31,733 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:31,733 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:31,733 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,734 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,740 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,740 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2021-11-07 07:35:31,760 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,760 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:31,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,790 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2021-11-07 07:35:31,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,799 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,799 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:31,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,818 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2021-11-07 07:35:31,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,828 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,846 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2021-11-07 07:35:31,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,847 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2021-11-07 07:35:31,848 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,848 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,855 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,855 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2021-11-07 07:35:31,874 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,875 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2021-11-07 07:35:31,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,884 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,884 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2021-11-07 07:35:31,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,905 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2021-11-07 07:35:31,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,906 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,914 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,915 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2021-11-07 07:35:31,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,934 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2021-11-07 07:35:31,936 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,936 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,944 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,944 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret10=0} Honda state: {fibo2_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2021-11-07 07:35:31,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,964 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2021-11-07 07:35:31,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:31,973 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:31,973 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:31,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2021-11-07 07:35:31,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:31,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:31,993 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:31,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2021-11-07 07:35:31,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:31,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:32,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,023 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2021-11-07 07:35:32,024 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:32,024 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:32,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:32,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2021-11-07 07:35:32,098 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:32,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:32,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:32,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:32,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:32,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:32,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:32,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration7_Loop [2021-11-07 07:35:32,099 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:32,099 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:32,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,101 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:32,181 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:32,181 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:32,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,182 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2021-11-07 07:35:32,187 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,194 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,194 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,195 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,195 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,265 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2021-11-07 07:35:32,270 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,279 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,279 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,295 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,327 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,328 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,329 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2021-11-07 07:35:32,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,338 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,358 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2021-11-07 07:35:32,359 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,366 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,366 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,366 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,387 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2021-11-07 07:35:32,420 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,421 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,423 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,432 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,432 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2021-11-07 07:35:32,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,476 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,477 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,481 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,492 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,492 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2021-11-07 07:35:32,502 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,536 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,537 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,539 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,548 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2021-11-07 07:35:32,566 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,599 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,605 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,614 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,614 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,614 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,614 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,614 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,615 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,615 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2021-11-07 07:35:32,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:32,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,674 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,677 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,686 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,686 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,686 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,686 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,686 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,687 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,687 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2021-11-07 07:35:32,711 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:32,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2021-11-07 07:35:32,738 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,739 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2021-11-07 07:35:32,740 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:32,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:32,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:32,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:32,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:32,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:32,748 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:32,748 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:32,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:32,760 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-07 07:35:32,760 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-07 07:35:32,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:32,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:32,765 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:32,766 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:32,766 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:32,766 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:32,766 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-11-07 07:35:32,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2021-11-07 07:35:32,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2021-11-07 07:35:32,787 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:32,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:32,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:32,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:32,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:33,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:33,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:33,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:33,497 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:33,497 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:33,603 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 342 states and 389 transitions. Complement of second has 16 states. [2021-11-07 07:35:33,605 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 [2021-11-07 07:35:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-11-07 07:35:33,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 45 letters. Loop has 8 letters. [2021-11-07 07:35:33,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:33,606 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:33,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:33,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:34,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:34,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:34,325 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:34,325 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:34,438 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 342 states and 389 transitions. Complement of second has 16 states. [2021-11-07 07:35:34,440 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 [2021-11-07 07:35:34,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:34,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2021-11-07 07:35:34,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 26 transitions. Stem has 45 letters. Loop has 8 letters. [2021-11-07 07:35:34,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:34,441 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:34,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:34,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:34,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:34,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:35,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:35,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:35,113 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:35,113 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:35,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 258 states and 298 transitions. cyclomatic complexity: 48. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 478 states and 540 transitions. Complement of second has 23 states. [2021-11-07 07:35:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:35,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 43 transitions. [2021-11-07 07:35:35,272 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 45 letters. Loop has 8 letters. [2021-11-07 07:35:35,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:35,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 53 letters. Loop has 8 letters. [2021-11-07 07:35:35,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:35,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 43 transitions. Stem has 45 letters. Loop has 16 letters. [2021-11-07 07:35:35,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:35,275 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 478 states and 540 transitions. [2021-11-07 07:35:35,281 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 68 [2021-11-07 07:35:35,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 478 states to 339 states and 392 transitions. [2021-11-07 07:35:35,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 174 [2021-11-07 07:35:35,291 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 191 [2021-11-07 07:35:35,291 INFO L73 IsDeterministic]: Start isDeterministic. Operand 339 states and 392 transitions. [2021-11-07 07:35:35,291 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:35,291 INFO L681 BuchiCegarLoop]: Abstraction has 339 states and 392 transitions. [2021-11-07 07:35:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states and 392 transitions. [2021-11-07 07:35:35,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 322. [2021-11-07 07:35:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 215 states have (on average 1.1162790697674418) internal successors, (240), 231 states have internal predecessors, (240), 63 states have call successors, (64), 51 states have call predecessors, (64), 44 states have return successors, (65), 39 states have call predecessors, (65), 50 states have call successors, (65) [2021-11-07 07:35:35,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 369 transitions. [2021-11-07 07:35:35,306 INFO L704 BuchiCegarLoop]: Abstraction has 322 states and 369 transitions. [2021-11-07 07:35:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:35,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-07 07:35:35,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:35:35,308 INFO L87 Difference]: Start difference. First operand 322 states and 369 transitions. Second operand has 18 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 9 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-07 07:35:35,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:35,610 INFO L93 Difference]: Finished difference Result 327 states and 372 transitions. [2021-11-07 07:35:35,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:35:35,611 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 327 states and 372 transitions. [2021-11-07 07:35:35,615 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 59 [2021-11-07 07:35:35,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 327 states to 325 states and 370 transitions. [2021-11-07 07:35:35,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 192 [2021-11-07 07:35:35,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 192 [2021-11-07 07:35:35,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 325 states and 370 transitions. [2021-11-07 07:35:35,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:35,620 INFO L681 BuchiCegarLoop]: Abstraction has 325 states and 370 transitions. [2021-11-07 07:35:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states and 370 transitions. [2021-11-07 07:35:35,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 317. [2021-11-07 07:35:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 212 states have (on average 1.1132075471698113) internal successors, (236), 228 states have internal predecessors, (236), 62 states have call successors, (63), 50 states have call predecessors, (63), 43 states have return successors, (63), 38 states have call predecessors, (63), 49 states have call successors, (63) [2021-11-07 07:35:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 362 transitions. [2021-11-07 07:35:35,633 INFO L704 BuchiCegarLoop]: Abstraction has 317 states and 362 transitions. [2021-11-07 07:35:35,633 INFO L587 BuchiCegarLoop]: Abstraction has 317 states and 362 transitions. [2021-11-07 07:35:35,633 INFO L425 BuchiCegarLoop]: ======== Iteration 8============ [2021-11-07 07:35:35,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 317 states and 362 transitions. [2021-11-07 07:35:35,636 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 59 [2021-11-07 07:35:35,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:35,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:35,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:35,639 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:35,640 INFO L791 eck$LassoCheckResult]: Stem: 8631#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 8632#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 8664#L39 call main_#t~ret11 := fibo1(main_~x~0);< 8702#fibo1ENTRY ~n := #in~n; 8772#L10 assume !(~n < 1); 8771#L12 assume !(1 == ~n); 8767#L15 call #t~ret7 := fibo2(~n - 1);< 8770#fibo2ENTRY ~n := #in~n; 8769#L20 assume !(~n < 1); 8768#L22 assume !(1 == ~n); 8759#L25 call #t~ret9 := fibo1(~n - 1);< 8766#fibo1ENTRY ~n := #in~n; 8763#L10 assume !(~n < 1); 8761#L12 assume !(1 == ~n); 8694#L15 call #t~ret7 := fibo2(~n - 1);< 8758#fibo2ENTRY ~n := #in~n; 8757#L20 assume !(~n < 1); 8754#L22 assume !(1 == ~n); 8742#L25 call #t~ret9 := fibo1(~n - 1);< 8764#fibo1ENTRY ~n := #in~n; 8765#L10 assume !(~n < 1); 8786#L12 assume !(1 == ~n); 8782#L15 call #t~ret7 := fibo2(~n - 1);< 8783#fibo2ENTRY ~n := #in~n; 8788#L20 assume !(~n < 1); 8787#L22 assume 1 == ~n;#res := 1; 8785#fibo2FINAL assume true; 8781#fibo2EXIT >#50#return; 8778#L15-1 call #t~ret8 := fibo2(~n - 2);< 8779#fibo2ENTRY ~n := #in~n; 8784#L20 assume ~n < 1;#res := 0; 8780#fibo2FINAL assume true; 8777#fibo2EXIT >#52#return; 8776#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 8775#fibo1FINAL assume true; 8741#fibo1EXIT >#46#return; 8735#L25-1 call #t~ret10 := fibo1(~n - 2);< 8833#fibo1ENTRY ~n := #in~n; 8845#L10 assume !(~n < 1); 8840#L12 assume 1 == ~n;#res := 1; 8835#fibo1FINAL assume true; 8826#fibo1EXIT >#48#return; 8827#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 8928#fibo2FINAL assume true; 8693#fibo2EXIT >#50#return; 8666#L15-1 call #t~ret8 := fibo2(~n - 2);< 8849#fibo2ENTRY [2021-11-07 07:35:35,640 INFO L793 eck$LassoCheckResult]: Loop: 8849#fibo2ENTRY ~n := #in~n; 8842#L20 assume !(~n < 1); 8839#L22 assume !(1 == ~n); 8829#L25 call #t~ret9 := fibo1(~n - 1);< 8837#fibo1ENTRY ~n := #in~n; 8874#L10 assume !(~n < 1); 8873#L12 assume !(1 == ~n); 8669#L15 call #t~ret7 := fibo2(~n - 1);< 8851#fibo2ENTRY ~n := #in~n; 8852#L20 assume !(~n < 1); 8864#L22 assume 1 == ~n;#res := 1; 8862#fibo2FINAL assume true; 8859#fibo2EXIT >#50#return; 8665#L15-1 call #t~ret8 := fibo2(~n - 2);< 8849#fibo2ENTRY [2021-11-07 07:35:35,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:35,641 INFO L85 PathProgramCache]: Analyzing trace with hash -177678082, now seen corresponding path program 2 times [2021-11-07 07:35:35,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:35,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416977576] [2021-11-07 07:35:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:35,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:35,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:35,665 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:35,689 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:35,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash -767060718, now seen corresponding path program 2 times [2021-11-07 07:35:35,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:35,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163592812] [2021-11-07 07:35:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:35,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:35,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:35,701 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:35,706 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:35,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:35,707 INFO L85 PathProgramCache]: Analyzing trace with hash 556691279, now seen corresponding path program 3 times [2021-11-07 07:35:35,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:35,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32276055] [2021-11-07 07:35:35,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:35,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-07 07:35:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:35,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-07 07:35:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-07 07:35:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 35 proven. 29 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-11-07 07:35:35,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:35,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32276055] [2021-11-07 07:35:35,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32276055] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:35,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694427276] [2021-11-07 07:35:35,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:35:35,876 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:35,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:35,877 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:35,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-11-07 07:35:36,243 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-07 07:35:36,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:35:36,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:35:36,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:36,500 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-07 07:35:36,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694427276] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:36,500 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:36,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 19 [2021-11-07 07:35:36,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926714847] [2021-11-07 07:35:36,655 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:36,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:36,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:36,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:36,655 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:36,655 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,655 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:36,655 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:36,655 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration8_Loop [2021-11-07 07:35:36,655 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:36,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:36,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:36,714 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:36,715 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:36,715 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,720 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,725 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Waiting until timeout for monitored process [2021-11-07 07:35:36,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,752 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (78)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:36,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,787 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2021-11-07 07:35:36,824 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,824 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:36,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,853 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2021-11-07 07:35:36,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,862 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,862 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:36,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,881 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2021-11-07 07:35:36,883 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,883 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,892 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,892 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:36,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,912 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2021-11-07 07:35:36,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2021-11-07 07:35:36,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,941 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2021-11-07 07:35:36,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,951 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,952 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:36,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:36,971 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:36,971 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:36,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2021-11-07 07:35:36,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:36,972 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:36,980 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:36,980 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:37,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:37,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,001 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Waiting until timeout for monitored process [2021-11-07 07:35:37,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:37,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:37,010 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:37,010 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:37,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (85)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:37,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,030 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2021-11-07 07:35:37,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:37,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:37,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2021-11-07 07:35:37,066 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,067 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2021-11-07 07:35:37,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:37,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:37,142 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:37,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:37,145 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:37,145 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:37,145 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:37,145 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:37,145 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:37,145 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,145 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:37,145 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:37,145 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration8_Loop [2021-11-07 07:35:37,145 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:37,145 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:37,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:37,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:37,222 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:37,222 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,223 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,230 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,239 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,239 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,239 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,240 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,240 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2021-11-07 07:35:37,251 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:37,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,286 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,288 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2021-11-07 07:35:37,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:37,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,333 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2021-11-07 07:35:37,334 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,342 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,342 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,342 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,342 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,342 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,343 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2021-11-07 07:35:37,362 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,363 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2021-11-07 07:35:37,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,371 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,371 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,375 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2021-11-07 07:35:37,395 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,396 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2021-11-07 07:35:37,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,405 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,405 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,405 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,405 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,406 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,406 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,407 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2021-11-07 07:35:37,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,428 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2021-11-07 07:35:37,435 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,442 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,442 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,442 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,442 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,442 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,442 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,442 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,443 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2021-11-07 07:35:37,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,463 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2021-11-07 07:35:37,464 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,471 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,471 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,471 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,472 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,472 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,472 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,472 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,473 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2021-11-07 07:35:37,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,493 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2021-11-07 07:35:37,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,501 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,501 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,501 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,501 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,501 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,504 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:37,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2021-11-07 07:35:37,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,526 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2021-11-07 07:35:37,527 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:37,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:37,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:37,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:37,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:37,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:37,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:37,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:37,537 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:37,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 07:35:37,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 07:35:37,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:37,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:37,540 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:37,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2021-11-07 07:35:37,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:37,541 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:37,541 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:37,541 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-11-07 07:35:37,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2021-11-07 07:35:37,560 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:37,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:37,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:37,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:37,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:37,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:38,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:35:38,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:38,334 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-11-07 07:35:38,334 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:38,595 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 405 states and 460 transitions. Complement of second has 28 states. [2021-11-07 07:35:38,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:38,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:38,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 33 transitions. [2021-11-07 07:35:38,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 33 transitions. Stem has 46 letters. Loop has 14 letters. [2021-11-07 07:35:38,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:38,597 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:38,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:38,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:38,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:39,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:35:39,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:39,400 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2021-11-07 07:35:39,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:39,638 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 405 states and 460 transitions. Complement of second has 28 states. [2021-11-07 07:35:39,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:39,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 33 transitions. [2021-11-07 07:35:39,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 33 transitions. Stem has 46 letters. Loop has 14 letters. [2021-11-07 07:35:39,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:39,641 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:39,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:39,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:35:39,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:40,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:35:40,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:40,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:40,398 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2021-11-07 07:35:40,398 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53 Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:40,716 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 317 states and 362 transitions. cyclomatic complexity: 53. Second operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Result 651 states and 735 transitions. Complement of second has 30 states. [2021-11-07 07:35:40,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:40,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 6 states have internal predecessors, (31), 5 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-07 07:35:40,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 56 transitions. [2021-11-07 07:35:40,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 46 letters. Loop has 14 letters. [2021-11-07 07:35:40,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:40,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 60 letters. Loop has 14 letters. [2021-11-07 07:35:40,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:40,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 56 transitions. Stem has 46 letters. Loop has 28 letters. [2021-11-07 07:35:40,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:40,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 651 states and 735 transitions. [2021-11-07 07:35:40,736 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 98 [2021-11-07 07:35:40,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 651 states to 414 states and 484 transitions. [2021-11-07 07:35:40,742 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-11-07 07:35:40,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2021-11-07 07:35:40,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 414 states and 484 transitions. [2021-11-07 07:35:40,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:40,743 INFO L681 BuchiCegarLoop]: Abstraction has 414 states and 484 transitions. [2021-11-07 07:35:40,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states and 484 transitions. [2021-11-07 07:35:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 359. [2021-11-07 07:35:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 237 states have (on average 1.1223628691983123) internal successors, (266), 254 states have internal predecessors, (266), 71 states have call successors, (72), 56 states have call predecessors, (72), 51 states have return successors, (72), 48 states have call predecessors, (72), 58 states have call successors, (72) [2021-11-07 07:35:40,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 410 transitions. [2021-11-07 07:35:40,757 INFO L704 BuchiCegarLoop]: Abstraction has 359 states and 410 transitions. [2021-11-07 07:35:40,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:40,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 07:35:40,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:35:40,758 INFO L87 Difference]: Start difference. First operand 359 states and 410 transitions. Second operand has 19 states, 17 states have (on average 2.7058823529411766) internal successors, (46), 15 states have internal predecessors, (46), 9 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2021-11-07 07:35:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:41,125 INFO L93 Difference]: Finished difference Result 183 states and 206 transitions. [2021-11-07 07:35:41,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:35:41,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 206 transitions. [2021-11-07 07:35:41,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-07 07:35:41,130 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 159 states and 180 transitions. [2021-11-07 07:35:41,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-11-07 07:35:41,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 144 [2021-11-07 07:35:41,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 180 transitions. [2021-11-07 07:35:41,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-07 07:35:41,131 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-11-07 07:35:41,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 180 transitions. [2021-11-07 07:35:41,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-11-07 07:35:41,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 104 states have (on average 1.0865384615384615) internal successors, (113), 109 states have internal predecessors, (113), 31 states have call successors, (31), 23 states have call predecessors, (31), 24 states have return successors, (36), 26 states have call predecessors, (36), 28 states have call successors, (36) [2021-11-07 07:35:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 180 transitions. [2021-11-07 07:35:41,136 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-11-07 07:35:41,136 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 180 transitions. [2021-11-07 07:35:41,137 INFO L425 BuchiCegarLoop]: ======== Iteration 9============ [2021-11-07 07:35:41,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 180 transitions. [2021-11-07 07:35:41,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-11-07 07:35:41,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-07 07:35:41,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-07 07:35:41,139 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:41,140 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:41,140 INFO L791 eck$LassoCheckResult]: Stem: 11942#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 11943#L-1 havoc main_#res;havoc main_#t~ret11, main_~x~0, main_~result~0;main_~x~0 := 6; 11964#L39 call main_#t~ret11 := fibo1(main_~x~0);< 11988#fibo1ENTRY ~n := #in~n; 11996#L10 assume !(~n < 1); 11994#L12 assume !(1 == ~n); 11991#L15 call #t~ret7 := fibo2(~n - 1);< 11992#fibo2ENTRY ~n := #in~n; 12027#L20 assume !(~n < 1); 12025#L22 assume !(1 == ~n); 11960#L25 call #t~ret9 := fibo1(~n - 1);< 11959#fibo1ENTRY ~n := #in~n; 11961#L10 assume !(~n < 1); 11973#L12 assume !(1 == ~n); 11974#L15 call #t~ret7 := fibo2(~n - 1);< 12017#fibo2ENTRY ~n := #in~n; 12062#L20 assume !(~n < 1); 12059#L22 assume !(1 == ~n); 11966#L25 call #t~ret9 := fibo1(~n - 1);< 12058#fibo1ENTRY ~n := #in~n; 12056#L10 assume !(~n < 1); 12054#L12 assume !(1 == ~n); 11945#L15 call #t~ret7 := fibo2(~n - 1);< 11979#fibo2ENTRY ~n := #in~n; 11981#L20 assume !(~n < 1); 11944#L22 assume 1 == ~n;#res := 1; 11946#fibo2FINAL assume true; 11983#fibo2EXIT >#50#return; 11965#L15-1 call #t~ret8 := fibo2(~n - 2);< 11967#fibo2ENTRY ~n := #in~n; 12060#L20 assume ~n < 1;#res := 0; 12051#fibo2FINAL assume true; 12050#fibo2EXIT >#52#return; 11986#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 11987#fibo1FINAL assume true; 12097#fibo1EXIT >#46#return; 11951#L25-1 call #t~ret10 := fibo1(~n - 2);< 12042#fibo1ENTRY ~n := #in~n; 12100#L10 assume !(~n < 1); 12099#L12 assume 1 == ~n;#res := 1; 11950#fibo1FINAL assume true; 11952#fibo1EXIT >#48#return; 12040#L25-2 #res := #t~ret9 + #t~ret10;havoc #t~ret9;havoc #t~ret10; 12036#fibo2FINAL assume true; 12016#fibo2EXIT >#50#return; 12013#L15-1 call #t~ret8 := fibo2(~n - 2);< 12015#fibo2ENTRY ~n := #in~n; 12065#L20 assume ~n < 1;#res := 0; 12064#fibo2FINAL assume true; 12049#fibo2EXIT >#52#return; 12010#L15-2 #res := #t~ret7 + #t~ret8;havoc #t~ret7;havoc #t~ret8; 12009#fibo1FINAL assume true; 12002#fibo1EXIT >#46#return; 11998#L25-1 call #t~ret10 := fibo1(~n - 2);< 12000#fibo1ENTRY ~n := #in~n; 12028#L10 assume !(~n < 1); 12026#L12 assume !(1 == ~n); 12021#L15 call #t~ret7 := fibo2(~n - 1);< 12024#fibo2ENTRY [2021-11-07 07:35:41,140 INFO L793 eck$LassoCheckResult]: Loop: 12024#fibo2ENTRY ~n := #in~n; 12046#L20 assume !(~n < 1); 12043#L22 assume !(1 == ~n); 12032#L25 call #t~ret9 := fibo1(~n - 1);< 12038#fibo1ENTRY ~n := #in~n; 12057#L10 assume !(~n < 1); 12055#L12 assume !(1 == ~n); 12022#L15 call #t~ret7 := fibo2(~n - 1);< 12024#fibo2ENTRY [2021-11-07 07:35:41,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:41,141 INFO L85 PathProgramCache]: Analyzing trace with hash -574560183, now seen corresponding path program 4 times [2021-11-07 07:35:41,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:41,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392219164] [2021-11-07 07:35:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:41,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-07 07:35:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-07 07:35:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-07 07:35:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-11-07 07:35:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-07 07:35:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:41,294 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 32 proven. 27 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-07 07:35:41,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:41,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392219164] [2021-11-07 07:35:41,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392219164] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:41,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650601023] [2021-11-07 07:35:41,295 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:35:41,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:41,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:41,298 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:41,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-11-07 07:35:41,812 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:35:41,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:35:41,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:35:41,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:42,015 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 31 proven. 27 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 07:35:42,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650601023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:42,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:42,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 16 [2021-11-07 07:35:42,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183425557] [2021-11-07 07:35:42,016 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-07 07:35:42,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash -28526872, now seen corresponding path program 3 times [2021-11-07 07:35:42,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:42,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304386365] [2021-11-07 07:35:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:42,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:42,023 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:35:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:35:42,025 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:35:42,118 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:42,118 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:42,118 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:42,118 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:42,118 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-07 07:35:42,118 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,118 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:42,118 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:42,118 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration9_Loop [2021-11-07 07:35:42,118 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:42,118 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:42,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,176 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:42,176 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-07 07:35:42,176 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,179 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2021-11-07 07:35:42,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,188 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,188 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret9=0} Honda state: {fibo2_#t~ret9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,208 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2021-11-07 07:35:42,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,217 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,217 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2021-11-07 07:35:42,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,237 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2021-11-07 07:35:42,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,246 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,267 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2021-11-07 07:35:42,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,276 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret8=0} Honda state: {fibo1_#t~ret8=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2021-11-07 07:35:42,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,296 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Waiting until timeout for monitored process [2021-11-07 07:35:42,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,305 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret7=0} Honda state: {fibo1_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (103)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,325 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2021-11-07 07:35:42,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,326 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,334 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,334 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,354 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2021-11-07 07:35:42,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,362 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,363 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret10=0} Honda state: {fibo2_#t~ret10=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,381 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Ended with exit code 0 [2021-11-07 07:35:42,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,382 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2021-11-07 07:35:42,383 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,383 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,391 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,391 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2021-11-07 07:35:42,410 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,411 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2021-11-07 07:35:42,412 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,420 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-07 07:35:42,420 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-07 07:35:42,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2021-11-07 07:35:42,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,440 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2021-11-07 07:35:42,442 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-07 07:35:42,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Ended with exit code 0 [2021-11-07 07:35:42,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,469 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2021-11-07 07:35:42,470 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-07 07:35:42,470 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-07 07:35:42,544 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-07 07:35:42,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Ended with exit code 0 [2021-11-07 07:35:42,547 INFO L210 LassoAnalysis]: Preferences: [2021-11-07 07:35:42,547 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-07 07:35:42,547 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-07 07:35:42,547 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-07 07:35:42,547 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-07 07:35:42,547 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,547 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-07 07:35:42,547 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-07 07:35:42,547 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_6-1.c_Iteration9_Loop [2021-11-07 07:35:42,547 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-07 07:35:42,547 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-07 07:35:42,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,562 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-07 07:35:42,611 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-07 07:35:42,611 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-07 07:35:42,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,613 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2021-11-07 07:35:42,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,622 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,642 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2021-11-07 07:35:42,643 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,651 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Ended with exit code 0 [2021-11-07 07:35:42,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,671 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2021-11-07 07:35:42,672 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,679 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,679 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,679 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,680 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,681 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,700 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2021-11-07 07:35:42,702 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,709 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,709 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,709 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,709 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,709 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,710 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,710 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,712 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Ended with exit code 0 [2021-11-07 07:35:42,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,732 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2021-11-07 07:35:42,733 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,740 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,741 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,776 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,777 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,787 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,787 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,787 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2021-11-07 07:35:42,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,879 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,881 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,890 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,891 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,891 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2021-11-07 07:35:42,900 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,934 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2021-11-07 07:35:42,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,942 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,942 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:42,962 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,963 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2021-11-07 07:35:42,964 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:42,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:42,971 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:42,971 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:42,971 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:42,971 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:42,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:42,972 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:42,973 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-07 07:35:42,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2021-11-07 07:35:42,992 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:42,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:42,992 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:42,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2021-11-07 07:35:42,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-07 07:35:43,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-07 07:35:43,000 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-07 07:35:43,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-07 07:35:43,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-07 07:35:43,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-07 07:35:43,001 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-07 07:35:43,001 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-07 07:35:43,003 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-07 07:35:43,005 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-07 07:35:43,005 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-07 07:35:43,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-07 07:35:43,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:43,006 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-07 07:35:43,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2021-11-07 07:35:43,007 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-07 07:35:43,007 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-07 07:35:43,007 INFO L513 LassoAnalysis]: Proved termination. [2021-11-07 07:35:43,007 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2021-11-07 07:35:43,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2021-11-07 07:35:43,026 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-07 07:35:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:43,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:35:43,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:43,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:43,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:43,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:43,931 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:43,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:44,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 177 states and 198 transitions. Complement of second has 15 states. [2021-11-07 07:35:44,022 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 [2021-11-07 07:35:44,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:44,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2021-11-07 07:35:44,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 58 letters. Loop has 8 letters. [2021-11-07 07:35:44,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:44,023 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:44,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:44,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:35:44,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:44,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:44,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:44,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:44,967 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:44,967 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:45,060 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 177 states and 198 transitions. Complement of second has 15 states. [2021-11-07 07:35:45,061 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 [2021-11-07 07:35:45,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2021-11-07 07:35:45,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 17 transitions. Stem has 58 letters. Loop has 8 letters. [2021-11-07 07:35:45,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:45,062 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2021-11-07 07:35:45,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:45,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:35:45,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:45,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:45,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 07:35:45,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:45,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:45,964 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2021-11-07 07:35:45,964 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:46,082 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 159 states and 180 transitions. cyclomatic complexity: 23. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 266 states and 297 transitions. Complement of second has 25 states. [2021-11-07 07:35:46,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2021-11-07 07:35:46,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-07 07:35:46,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 42 transitions. [2021-11-07 07:35:46,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 58 letters. Loop has 8 letters. [2021-11-07 07:35:46,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:46,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 66 letters. Loop has 8 letters. [2021-11-07 07:35:46,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:46,084 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 42 transitions. Stem has 58 letters. Loop has 16 letters. [2021-11-07 07:35:46,084 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-07 07:35:46,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 266 states and 297 transitions. [2021-11-07 07:35:46,088 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:35:46,088 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 266 states to 0 states and 0 transitions. [2021-11-07 07:35:46,089 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 07:35:46,089 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 07:35:46,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 07:35:46,089 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:35:46,089 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:35:46,089 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:35:46,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:46,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-07 07:35:46,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:35:46,090 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 16 states, 13 states have (on average 3.076923076923077) internal successors, (40), 13 states have internal predecessors, (40), 8 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2021-11-07 07:35:46,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:46,091 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-07 07:35:46,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:35:46,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-07 07:35:46,091 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:35:46,091 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 07:35:46,091 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-07 07:35:46,091 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-07 07:35:46,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-07 07:35:46,092 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-07 07:35:46,092 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:35:46,092 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:35:46,092 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:35:46,092 INFO L425 BuchiCegarLoop]: ======== Iteration 10============ [2021-11-07 07:35:46,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:35:46,092 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-07 07:35:46,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-07 07:35:46,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.11 07:35:46 BoogieIcfgContainer [2021-11-07 07:35:46,098 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-07 07:35:46,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:35:46,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:35:46,099 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:35:46,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:35:17" (3/4) ... [2021-11-07 07:35:46,103 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:35:46,103 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:35:46,105 INFO L168 Benchmark]: Toolchain (without parser) took 29678.10 ms. Allocated memory was 86.0 MB in the beginning and 232.8 MB in the end (delta: 146.8 MB). Free memory was 45.3 MB in the beginning and 116.3 MB in the end (delta: -71.0 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:35:46,105 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:35:46,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.88 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 45.1 MB in the beginning and 84.7 MB in the end (delta: -39.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:35:46,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.99 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:35:46,107 INFO L168 Benchmark]: Boogie Preprocessor took 18.58 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 82.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:35:46,108 INFO L168 Benchmark]: RCFGBuilder took 290.47 ms. Allocated memory is still 109.1 MB. Free memory was 82.2 MB in the beginning and 72.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:35:46,108 INFO L168 Benchmark]: BuchiAutomizer took 29026.93 ms. Allocated memory was 109.1 MB in the beginning and 232.8 MB in the end (delta: 123.7 MB). Free memory was 72.1 MB in the beginning and 116.3 MB in the end (delta: -44.1 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:35:46,108 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 232.8 MB. Free memory is still 116.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:35:46,112 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 61.3 MB in the beginning and 61.3 MB in the end (delta: 60.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.88 ms. Allocated memory was 86.0 MB in the beginning and 109.1 MB in the end (delta: 23.1 MB). Free memory was 45.1 MB in the beginning and 84.7 MB in the end (delta: -39.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.99 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.58 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 82.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 290.47 ms. Allocated memory is still 109.1 MB. Free memory was 82.2 MB in the beginning and 72.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 29026.93 ms. Allocated memory was 109.1 MB in the beginning and 232.8 MB in the end (delta: 123.7 MB). Free memory was 72.1 MB in the beginning and 116.3 MB in the end (delta: -44.1 MB). Peak memory consumption was 81.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 232.8 MB. Free memory is still 116.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (8 trivial, 3 deterministic, 3 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. One deterministic module has affine ranking function n and consists of 12 locations. One deterministic module has affine ranking function n and consists of 12 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. One nondeterministic module has affine ranking function \old(n) and consists of 10 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. 8 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 28.9s and 10 iterations. TraceHistogramMax:8. Analysis of lassos took 15.3s. Construction of modules took 1.8s. Büchi inclusion checks took 11.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 12. Automata minimization 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 221 StatesRemovedByMinimization, 11 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had 317 states and ocurred in iteration 7. Nontrivial modules had stage [3, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/9 HoareTripleCheckerStatistics: 389 SDtfs, 979 SDslu, 1057 SDs, 0 SdLazy, 2641 SolverSat, 536 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI3 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf94 lsp93 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq189 hnf92 smp81 dnf100 smp100 tf110 neg97 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 42 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-07 07:35:46,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:46,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-11-07 07:35:46,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Ended with exit code 0 [2021-11-07 07:35:46,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2021-11-07 07:35:46,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:47,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-11-07 07:35:47,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-11-07 07:35:47,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-07 07:35:47,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-11-07 07:35:47,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cdd5852-2cf0-4ee8-b0ce-4d45782563c0/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE