./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3df7720ba3b76dcfdecddff77e2f89a40d99e447 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:17:06,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:17:06,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:17:06,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:17:06,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:17:06,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:17:06,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:17:06,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:17:06,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:17:06,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:17:06,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:17:06,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:17:06,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:17:06,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:17:06,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:17:06,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:17:06,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:17:06,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:17:06,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:17:06,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:17:06,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:17:06,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:17:06,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:17:06,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:17:06,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:17:06,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:17:06,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:17:06,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:17:06,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:17:06,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:17:06,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:17:06,945 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:17:06,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:17:06,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:17:06,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:17:06,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:17:06,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:17:06,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:17:06,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:17:06,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:17:06,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:17:06,955 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-13 00:17:07,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:17:07,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:17:07,036 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:17:07,036 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:17:07,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:17:07,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:17:07,039 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:17:07,040 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:17:07,040 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:17:07,040 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:17:07,041 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:17:07,042 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:17:07,042 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:17:07,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:17:07,043 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:17:07,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:17:07,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:17:07,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:17:07,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:17:07,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:17:07,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:17:07,045 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:17:07,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:17:07,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:17:07,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:17:07,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:17:07,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:17:07,048 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:17:07,049 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:17:07,050 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:17:07,050 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_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3df7720ba3b76dcfdecddff77e2f89a40d99e447 [2021-10-13 00:17:07,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:17:07,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:17:07,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:17:07,403 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:17:07,404 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:17:07,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2021-10-13 00:17:07,477 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/data/65f7038ff/5cde08c3c6d049549cfc941eb000a058/FLAG4bfb330a6 [2021-10-13 00:17:08,080 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:17:08,081 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/sv-benchmarks/c/termination-crafted/RecursiveMultiplication-1.c [2021-10-13 00:17:08,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/data/65f7038ff/5cde08c3c6d049549cfc941eb000a058/FLAG4bfb330a6 [2021-10-13 00:17:08,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/data/65f7038ff/5cde08c3c6d049549cfc941eb000a058 [2021-10-13 00:17:08,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:17:08,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:17:08,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:17:08,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:17:08,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:17:08,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671723c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08, skipping insertion in model container [2021-10-13 00:17:08,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:17:08,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:17:08,650 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:17:08,655 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:17:08,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:17:08,696 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:17:08,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08 WrapperNode [2021-10-13 00:17:08,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:17:08,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:17:08,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:17:08,699 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:17:08,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:17:08,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:17:08,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:17:08,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:17:08,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:17:08,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:17:08,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:17:08,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:17:08,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (1/1) ... [2021-10-13 00:17:08,768 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:08,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:08,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:08,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:17:08,863 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2021-10-13 00:17:08,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2021-10-13 00:17:08,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:17:08,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:17:09,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:17:09,098 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 00:17:09,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:17:09 BoogieIcfgContainer [2021-10-13 00:17:09,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:17:09,102 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:17:09,102 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:17:09,106 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:17:09,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:17:09,108 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:17:08" (1/3) ... [2021-10-13 00:17:09,110 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3acade77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:17:09, skipping insertion in model container [2021-10-13 00:17:09,110 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:17:09,110 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:17:08" (2/3) ... [2021-10-13 00:17:09,111 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3acade77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:17:09, skipping insertion in model container [2021-10-13 00:17:09,111 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:17:09,111 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:17:09" (3/3) ... [2021-10-13 00:17:09,113 INFO L389 chiAutomizerObserver]: Analyzing ICFG RecursiveMultiplication-1.c [2021-10-13 00:17:09,187 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:17:09,187 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:17:09,187 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:17:09,187 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:17:09,187 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:17:09,188 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:17:09,188 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:17:09,188 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:17:09,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:17:09,233 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:09,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:17:09,233 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:17:09,242 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:17:09,242 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:17:09,243 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:17:09,243 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-10-13 00:17:09,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:09,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:17:09,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:17:09,247 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-10-13 00:17:09,247 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:17:09,256 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~res~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L26true assume !!(-65535 <= main_~m~0 && main_~m~0 <= 65535); 6#L27true assume !!(-65535 <= main_~n~0 && main_~n~0 <= 65535); 15#L28true call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 8#multENTRYtrue [2021-10-13 00:17:09,256 INFO L793 eck$LassoCheckResult]: Loop: 8#multENTRYtrue ~n := #in~n;~m := #in~m; 5#L13true assume ~m < 0; 17#L14true call #t~ret0 := mult(~n, -~m);< 8#multENTRYtrue [2021-10-13 00:17:09,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:09,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1390416, now seen corresponding path program 1 times [2021-10-13 00:17:09,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:09,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349441799] [2021-10-13 00:17:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:09,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,396 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,438 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:09,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:09,442 INFO L82 PathProgramCache]: Analyzing trace with hash 29915, now seen corresponding path program 1 times [2021-10-13 00:17:09,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:09,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605588983] [2021-10-13 00:17:09,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:09,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:09,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,456 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:09,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:09,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1527789780, now seen corresponding path program 1 times [2021-10-13 00:17:09,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:09,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900806165] [2021-10-13 00:17:09,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:09,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,490 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:09,504 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:09,718 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:09,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:09,725 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:09,725 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:09,725 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:17:09,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:09,726 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:09,726 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:09,726 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2021-10-13 00:17:09,726 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:09,727 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:09,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:09,928 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:09,928 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:17:09,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:09,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:09,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:09,944 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:09,944 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:09,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-13 00:17:09,960 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:09,960 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:09,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:09,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:09,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:09,996 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:09,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-13 00:17:09,999 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,000 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:10,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=0} Honda state: {mult_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:10,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-10-13 00:17:10,046 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-13 00:17:10,050 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,051 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,062 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:10,063 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:10,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-10-13 00:17:10,091 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-13 00:17:10,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,114 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:10,114 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~m=0} Honda state: {mult_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:10,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-13 00:17:10,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,141 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,147 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-13 00:17:10,162 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:10,162 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:10,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,187 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,188 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-13 00:17:10,190 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,190 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:10,202 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#in~n=0} Honda state: {mult_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:10,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,227 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-13 00:17:10,231 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:10,231 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-10-13 00:17:10,266 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,267 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-13 00:17:10,273 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:17:10,273 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:10,331 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:17:10,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,338 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:10,338 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:10,338 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:10,338 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:10,338 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:17:10,339 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,339 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:10,339 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:10,339 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration1_Loop [2021-10-13 00:17:10,339 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:10,339 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:10,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:10,416 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:10,421 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:17:10,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,424 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-13 00:17:10,471 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,487 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,500 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,540 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,541 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-13 00:17:10,551 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,566 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,567 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,568 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,568 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,596 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,642 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,644 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,646 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-13 00:17:10,658 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,658 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,658 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,658 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,659 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,660 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,660 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,663 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,687 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,688 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,689 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-10-13 00:17:10,694 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,703 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,705 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,705 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,717 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,747 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,748 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-10-13 00:17:10,750 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,760 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,760 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,762 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,762 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,767 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:10,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,795 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-10-13 00:17:10,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,835 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-13 00:17:10,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2021-10-13 00:17:10,860 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,861 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-10-13 00:17:10,863 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:10,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:10,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:10,872 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:10,872 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:10,872 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:10,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:10,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:10,890 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:17:10,903 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:17:10,903 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:17:10,905 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:10,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:10,906 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:10,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-10-13 00:17:10,910 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:17:10,910 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:17:10,910 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:17:10,911 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_#in~m) = -1*mult_#in~m Supporting invariants [] [2021-10-13 00:17:10,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2021-10-13 00:17:10,942 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:17:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:11,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:17:11,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:11,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:17:11,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:11,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:17:11,162 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:17:11,164 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:11,332 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 59 transitions. Complement of second has 12 states. [2021-10-13 00:17:11,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:17:11,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:11,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2021-10-13 00:17:11,343 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 3 letters. [2021-10-13 00:17:11,347 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:11,347 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 3 letters. [2021-10-13 00:17:11,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:11,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 4 letters. Loop has 6 letters. [2021-10-13 00:17:11,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:11,351 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 59 transitions. [2021-10-13 00:17:11,377 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:11,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:11,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 21 states and 24 transitions. [2021-10-13 00:17:11,383 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2021-10-13 00:17:11,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2021-10-13 00:17:11,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 24 transitions. [2021-10-13 00:17:11,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:17:11,385 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-10-13 00:17:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 24 transitions. [2021-10-13 00:17:11,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 14. [2021-10-13 00:17:11,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-10-13 00:17:11,416 INFO L704 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-13 00:17:11,417 INFO L587 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-10-13 00:17:11,417 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:17:11,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2021-10-13 00:17:11,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:11,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:17:11,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:17:11,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:17:11,419 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-10-13 00:17:11,419 INFO L791 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~res~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 120#L26 assume !!(-65535 <= main_~m~0 && main_~m~0 <= 65535); 126#L27 assume !!(-65535 <= main_~n~0 && main_~n~0 <= 65535); 122#L28 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 127#multENTRY ~n := #in~n;~m := #in~m; 121#L13 assume !(~m < 0); 123#L16 [2021-10-13 00:17:11,419 INFO L793 eck$LassoCheckResult]: Loop: 123#L16 assume !(0 == ~m); 129#L19 call #t~ret1 := mult(~n, ~m - 1);< 131#multENTRY ~n := #in~n;~m := #in~m; 132#L13 assume !(~m < 0); 123#L16 [2021-10-13 00:17:11,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:11,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1336189782, now seen corresponding path program 1 times [2021-10-13 00:17:11,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:11,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224563844] [2021-10-13 00:17:11,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:11,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,430 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,439 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:11,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:11,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1253150, now seen corresponding path program 1 times [2021-10-13 00:17:11,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:11,440 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940271887] [2021-10-13 00:17:11,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:11,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,446 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,452 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:11,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:11,453 INFO L82 PathProgramCache]: Analyzing trace with hash -614723597, now seen corresponding path program 1 times [2021-10-13 00:17:11,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:11,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244669266] [2021-10-13 00:17:11,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:11,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,480 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:11,496 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:11,668 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:11,669 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:11,669 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:11,669 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:11,669 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:17:11,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:11,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:11,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:11,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2021-10-13 00:17:11,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:11,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:11,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:11,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:11,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:11,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:11,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:11,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:11,771 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:17:11,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:11,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:11,775 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:11,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-10-13 00:17:11,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:11,792 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:11,811 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:11,811 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret0=0} Honda state: {mult_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:11,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2021-10-13 00:17:11,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:11,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:11,837 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:11,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2021-10-13 00:17:11,840 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:11,858 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:11,888 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:11,888 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#t~ret1=0} Honda state: {mult_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:11,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:11,929 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:11,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:11,930 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:11,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:11,950 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:11,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2021-10-13 00:17:11,971 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:11,971 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_#res=0} Honda state: {mult_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:12,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:12,017 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:12,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:12,018 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:12,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2021-10-13 00:17:12,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:12,026 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:12,056 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-13 00:17:12,056 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {mult_~n=-8, mult_#in~n=-8} Honda state: {mult_~n=-8, mult_#in~n=-8} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-10-13 00:17:12,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:12,094 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:12,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:12,095 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:12,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2021-10-13 00:17:12,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:12,097 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:12,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:12,160 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:12,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:12,161 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:12,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2021-10-13 00:17:12,163 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:17:12,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:19,686 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:17:19,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2021-10-13 00:17:19,690 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:19,691 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:19,691 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:19,691 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:19,691 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:17:19,691 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:19,691 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:19,691 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:19,691 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration2_Loop [2021-10-13 00:17:19,691 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:19,691 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:19,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:19,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:19,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:19,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:19,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:19,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:19,785 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:17:19,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:19,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:19,786 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:19,795 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:19,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:19,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:19,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:19,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:19,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:19,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:19,810 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:19,814 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2021-10-13 00:17:19,827 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:17:19,833 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-13 00:17:19,833 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-13 00:17:19,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:19,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:19,835 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:19,839 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:17:19,839 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:17:19,840 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:17:19,840 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2021-10-13 00:17:19,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2021-10-13 00:17:19,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:19,882 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:17:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:19,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:17:19,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:19,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:17:19,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:17:20,015 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:17:20,015 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:20,067 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 31 transitions. Complement of second has 13 states. [2021-10-13 00:17:20,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2021-10-13 00:17:20,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2021-10-13 00:17:20,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 6 letters. Loop has 4 letters. [2021-10-13 00:17:20,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:20,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2021-10-13 00:17:20,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:20,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 6 letters. Loop has 8 letters. [2021-10-13 00:17:20,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:20,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 31 transitions. [2021-10-13 00:17:20,076 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:20,079 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2021-10-13 00:17:20,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2021-10-13 00:17:20,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2021-10-13 00:17:20,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2021-10-13 00:17:20,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:17:20,080 INFO L681 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2021-10-13 00:17:20,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2021-10-13 00:17:20,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2021-10-13 00:17:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:20,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-10-13 00:17:20,092 INFO L704 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-13 00:17:20,092 INFO L587 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-10-13 00:17:20,092 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:17:20,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 27 transitions. [2021-10-13 00:17:20,096 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:20,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:17:20,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:17:20,097 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:17:20,098 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-13 00:17:20,098 INFO L791 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~m~0, main_~n~0, main_~res~0;main_~m~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 223#L26 assume !!(-65535 <= main_~m~0 && main_~m~0 <= 65535); 230#L27 assume !!(-65535 <= main_~n~0 && main_~n~0 <= 65535); 231#L28 call main_#t~ret4 := mult(main_~m~0, main_~n~0);< 236#multENTRY ~n := #in~n;~m := #in~m; 241#L13 assume !(~m < 0); 239#L16 assume !(0 == ~m); 225#L19 call #t~ret1 := mult(~n, ~m - 1);< 242#multENTRY ~n := #in~n;~m := #in~m; 224#L13 assume ~m < 0; 226#L14 [2021-10-13 00:17:20,098 INFO L793 eck$LassoCheckResult]: Loop: 226#L14 call #t~ret0 := mult(~n, -~m);< 232#multENTRY ~n := #in~n;~m := #in~m; 234#L13 assume ~m < 0; 226#L14 [2021-10-13 00:17:20,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:20,099 INFO L82 PathProgramCache]: Analyzing trace with hash -614723600, now seen corresponding path program 1 times [2021-10-13 00:17:20,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:20,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110551837] [2021-10-13 00:17:20,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:20,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:20,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:17:20,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:17:20,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110551837] [2021-10-13 00:17:20,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110551837] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:17:20,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:17:20,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:17:20,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691647086] [2021-10-13 00:17:20,213 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-10-13 00:17:20,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:20,214 INFO L82 PathProgramCache]: Analyzing trace with hash 59585, now seen corresponding path program 2 times [2021-10-13 00:17:20,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:17:20,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751922042] [2021-10-13 00:17:20,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:17:20,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:17:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:20,238 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:17:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:17:20,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:20,342 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:20,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:20,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:20,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:20,343 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-13 00:17:20,343 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:20,343 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:20,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:20,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2021-10-13 00:17:20,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:20,344 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:20,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:20,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:20,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:20,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:20,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:20,432 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:20,432 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-13 00:17:20,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:20,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:20,435 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:20,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-13 00:17:20,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:20,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2021-10-13 00:17:20,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:20,528 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:20,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:20,529 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:20,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-13 00:17:20,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-13 00:17:20,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2021-10-13 00:17:22,226 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-13 00:17:22,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:22,230 INFO L210 LassoAnalysis]: Preferences: [2021-10-13 00:17:22,230 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-13 00:17:22,230 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-13 00:17:22,231 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-13 00:17:22,231 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-13 00:17:22,231 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:22,231 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-13 00:17:22,231 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-13 00:17:22,231 INFO L133 ssoRankerPreferences]: Filename of dumped script: RecursiveMultiplication-1.c_Iteration3_Loop [2021-10-13 00:17:22,231 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-13 00:17:22,231 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-13 00:17:22,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:22,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:22,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:22,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:22,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-13 00:17:22,332 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-13 00:17:22,332 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-13 00:17:22,333 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:22,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:22,354 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:22,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:22,368 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-10-13 00:17:22,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-13 00:17:22,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-13 00:17:22,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-13 00:17:22,381 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-13 00:17:22,381 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-13 00:17:22,382 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-13 00:17:22,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-13 00:17:22,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2021-10-13 00:17:22,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-13 00:17:22,410 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-10-13 00:17:22,410 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-10-13 00:17:22,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:17:22,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:17:22,412 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:17:22,414 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-13 00:17:22,414 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-13 00:17:22,414 INFO L513 LassoAnalysis]: Proved termination. [2021-10-13 00:17:22,414 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(mult_~m) = 1*mult_~m Supporting invariants [] [2021-10-13 00:17:22,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2021-10-13 00:17:22,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:22,448 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-13 00:17:22,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:17:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:22,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 00:17:22,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:17:22,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 00:17:22,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:17:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:17:22,621 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-13 00:17:22,621 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8 Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:22,676 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 27 transitions. cyclomatic complexity: 8. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 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 51 states and 61 transitions. Complement of second has 9 states. [2021-10-13 00:17:22,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-13 00:17:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-10-13 00:17:22,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2021-10-13 00:17:22,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:22,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2021-10-13 00:17:22,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:22,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2021-10-13 00:17:22,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-13 00:17:22,680 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 61 transitions. [2021-10-13 00:17:22,689 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-10-13 00:17:22,691 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 44 states and 54 transitions. [2021-10-13 00:17:22,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2021-10-13 00:17:22,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2021-10-13 00:17:22,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 54 transitions. [2021-10-13 00:17:22,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-10-13 00:17:22,692 INFO L681 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2021-10-13 00:17:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 54 transitions. [2021-10-13 00:17:22,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2021-10-13 00:17:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 27 states have internal predecessors, (34), 10 states have call successors, (13), 10 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:22,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2021-10-13 00:17:22,700 INFO L704 BuchiCegarLoop]: Abstraction has 38 states and 47 transitions. [2021-10-13 00:17:22,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:17:22,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:17:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:17:22,705 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:17:22,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:17:22,749 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2021-10-13 00:17:22,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:17:22,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 35 transitions. [2021-10-13 00:17:22,752 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:17:22,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2021-10-13 00:17:22,752 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-13 00:17:22,752 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-13 00:17:22,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-13 00:17:22,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:17:22,753 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:17:22,753 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:17:22,753 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:17:22,753 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:17:22,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:17:22,753 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-13 00:17:22,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-13 00:17:22,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:17:22 BoogieIcfgContainer [2021-10-13 00:17:22,761 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:17:22,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:17:22,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:17:22,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:17:22,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:17:09" (3/4) ... [2021-10-13 00:17:22,765 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:17:22,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:17:22,767 INFO L168 Benchmark]: Toolchain (without parser) took 14313.76 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 79.4 MB in the beginning and 98.3 MB in the end (delta: -18.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:22,768 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:17:22,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.35 ms. Allocated memory is still 109.1 MB. Free memory was 79.3 MB in the beginning and 70.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:22,770 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 109.1 MB. Free memory was 70.7 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:22,778 INFO L168 Benchmark]: Boogie Preprocessor took 19.87 ms. Allocated memory is still 109.1 MB. Free memory was 69.3 MB in the beginning and 68.5 MB in the end (delta: 812.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:17:22,779 INFO L168 Benchmark]: RCFGBuilder took 343.84 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 60.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:17:22,780 INFO L168 Benchmark]: BuchiAutomizer took 13658.88 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 60.1 MB in the beginning and 98.3 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:17:22,780 INFO L168 Benchmark]: Witness Printer took 4.29 ms. Allocated memory is still 140.5 MB. Free memory is still 98.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:17:22,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 109.1 MB. Free memory is still 82.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.35 ms. Allocated memory is still 109.1 MB. Free memory was 79.3 MB in the beginning and 70.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.36 ms. Allocated memory is still 109.1 MB. Free memory was 70.7 MB in the beginning and 69.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.87 ms. Allocated memory is still 109.1 MB. Free memory was 69.3 MB in the beginning and 68.5 MB in the end (delta: 812.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 343.84 ms. Allocated memory is still 109.1 MB. Free memory was 68.4 MB in the beginning and 60.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 13658.88 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 60.1 MB in the beginning and 98.3 MB in the end (delta: -38.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.29 ms. Allocated memory is still 140.5 MB. Free memory is still 98.3 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 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * \old(m) and consists of 4 locations. One deterministic module has affine ranking function m and consists of 5 locations. One deterministic module has affine ranking function m and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 12.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 35.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 42 SDtfs, 47 SDslu, 19 SDs, 0 SdLazy, 73 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp71 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf92 smp100 dnf100 smp100 tf110 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 78ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 9.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-13 00:17:22,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2021-10-13 00:17:23,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89cf0b8b-28f7-41e3-9d21-f0332e0f7223/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...