./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Mysore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Mysore-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF --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 e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:33:35,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:33:35,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:33:35,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:33:35,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:33:35,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:33:35,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:33:35,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:33:35,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:33:35,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:33:35,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:33:35,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:33:35,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:33:35,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:33:35,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:33:35,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:33:35,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:33:35,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:33:35,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:33:35,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:33:35,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:33:35,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:33:35,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:33:35,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:33:35,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:33:35,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:33:35,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:33:35,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:33:35,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:33:35,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:33:35,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:33:35,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:33:35,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:33:35,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:33:35,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:33:35,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:33:35,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:33:35,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:33:35,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:33:35,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:33:35,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:33:35,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:33:35,181 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:33:35,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:33:35,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:33:35,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:33:35,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:33:35,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:33:35,185 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:33:35,185 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:33:35,192 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:33:35,193 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:33:35,193 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:33:35,193 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:33:35,194 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:33:35,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:33:35,195 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:33:35,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:33:35,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:33:35,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:33:35,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:33:35,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:33:35,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:33:35,197 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:33:35,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:33:35,198 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:33:35,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:33:35,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:33:35,201 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:33:35,201 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:33:35,202 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:33:35,203 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:33:35,203 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_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e573de14d9788c77bce7065ed34a1586a64b72729dbf270f6aaf1ae9cdd54fd7 [2021-11-20 06:33:35,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:33:35,564 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:33:35,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:33:35,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:33:35,569 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:33:35,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-crafted/Mysore-2.c [2021-11-20 06:33:35,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/data/73c64261c/b84dcaafeb4d42a59e0c8870956b6829/FLAG549c87f6d [2021-11-20 06:33:36,076 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:33:36,076 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/sv-benchmarks/c/termination-crafted/Mysore-2.c [2021-11-20 06:33:36,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/data/73c64261c/b84dcaafeb4d42a59e0c8870956b6829/FLAG549c87f6d [2021-11-20 06:33:36,453 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/data/73c64261c/b84dcaafeb4d42a59e0c8870956b6829 [2021-11-20 06:33:36,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:33:36,457 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:33:36,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:33:36,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:33:36,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:33:36,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d5b1b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36, skipping insertion in model container [2021-11-20 06:33:36,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:33:36,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:33:36,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:33:36,703 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:33:36,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:33:36,728 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:33:36,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36 WrapperNode [2021-11-20 06:33:36,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:33:36,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:33:36,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:33:36,731 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:33:36,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,759 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2021-11-20 06:33:36,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:33:36,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:33:36,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:33:36,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:33:36,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:33:36,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:33:36,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:33:36,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:33:36,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (1/1) ... [2021-11-20 06:33:36,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:36,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:36,809 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:36,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:33:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:33:36,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:33:36,927 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:33:36,929 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:33:37,044 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:33:37,051 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:33:37,052 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:33:37,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:33:37 BoogieIcfgContainer [2021-11-20 06:33:37,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:33:37,056 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:33:37,056 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:33:37,059 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:33:37,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:33:37,060 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:33:36" (1/3) ... [2021-11-20 06:33:37,064 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11892fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:33:37, skipping insertion in model container [2021-11-20 06:33:37,064 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:33:37,064 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:33:36" (2/3) ... [2021-11-20 06:33:37,065 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@11892fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:33:37, skipping insertion in model container [2021-11-20 06:33:37,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:33:37,065 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:33:37" (3/3) ... [2021-11-20 06:33:37,067 INFO L388 chiAutomizerObserver]: Analyzing ICFG Mysore-2.c [2021-11-20 06:33:37,132 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:33:37,132 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:33:37,132 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:33:37,132 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:33:37,132 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:33:37,133 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:33:37,133 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:33:37,133 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:33:37,149 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:37,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:33:37,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:33:37,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:33:37,180 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 06:33:37,180 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:33:37,180 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:33:37,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:37,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 06:33:37,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:33:37,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:33:37,184 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2021-11-20 06:33:37,184 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 06:33:37,191 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1;havoc main_~c~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 8#L19true assume !!(-65535 <= main_~x~0#1 && main_~x~0#1 <= 65535); 10#L20true assume !!(-65535 <= main_~c~0#1 && main_~c~0#1 <= 65535); 6#L21true assume main_~c~0#1 >= 2; 9#L22-2true [2021-11-20 06:33:37,191 INFO L793 eck$LassoCheckResult]: Loop: 9#L22-2true assume !!(main_~x~0#1 + main_~c~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - main_~c~0#1;main_~c~0#1 := 1 + main_~c~0#1; 9#L22-2true [2021-11-20 06:33:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2021-11-20 06:33:37,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:37,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172008870] [2021-11-20 06:33:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:37,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,293 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:33:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,322 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:33:37,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:37,329 INFO L85 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2021-11-20 06:33:37,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:37,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198299121] [2021-11-20 06:33:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:37,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,350 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:33:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:33:37,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 889571281, now seen corresponding path program 1 times [2021-11-20 06:33:37,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:33:37,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299096518] [2021-11-20 06:33:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:33:37,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:33:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,386 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:33:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:33:37,403 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:33:37,515 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:33:37,530 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:33:37,530 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:33:37,530 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:33:37,531 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 06:33:37,531 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:37,531 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:33:37,531 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:33:37,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2021-11-20 06:33:37,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:33:37,532 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:33:37,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:37,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:37,560 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:37,654 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:33:37,655 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 06:33:37,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:37,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:37,674 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:37,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:33:37,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:33:37,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:33:37,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:33:37,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:33:37,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:37,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:37,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:37,748 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:37,755 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:33:37,755 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:33:37,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:33:37,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 06:33:37,786 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 06:33:37,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:37,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:37,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:37,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:37,818 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 06:33:37,818 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:33:37,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:33:37,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:37,878 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:37,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:37,879 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:37,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 06:33:37,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 06:33:37,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:33:38,025 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 06:33:38,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,031 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:33:38,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:33:38,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:33:38,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:33:38,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:33:38,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:33:38,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:33:38,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2021-11-20 06:33:38,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:33:38,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:33:38,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:38,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:38,051 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:33:38,129 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:33:38,134 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:33:38,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,137 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,142 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,152 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:33:38,157 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:33:38,158 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:33:38,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:33:38,182 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:33:38,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,215 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:33:38,217 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,225 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,225 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:33:38,228 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:33:38,228 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:33:38,245 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:33:38,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:33:38,284 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:33:38,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,295 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:33:38,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 06:33:38,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:33:38,314 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:33:38,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,334 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-11-20 06:33:38,334 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,356 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,363 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 06:33:38,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,373 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:33:38,378 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-20 06:33:38,378 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-20 06:33:38,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:33:38,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,417 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,419 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 06:33:38,422 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,429 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,429 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,429 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,429 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:33:38,451 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-11-20 06:33:38,451 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-11-20 06:33:38,478 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:33:38,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,508 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 06:33:38,513 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:33:38,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:33:38,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:33:38,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:33:38,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:33:38,521 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-11-20 06:33:38,525 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-11-20 06:33:38,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:33:38,531 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:33:38,539 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-20 06:33:38,539 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 06:33:38,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:33:38,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:33:38,542 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:33:38,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 06:33:38,543 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:33:38,544 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 06:33:38,544 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:33:38,544 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~c~0#1 + 3 f1 = 2*ULTIMATE.start_main_~x~0#1 + 2*ULTIMATE.start_main_~c~0#1 + 1 Supporting invariants [] [2021-11-20 06:33:38,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:38,567 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 06:33:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:33:38,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:38,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:33:38,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:33:38,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 06:33:38,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:33:38,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:33:38,723 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-20 06:33:38,725 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:38,762 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 23 states and 28 transitions. Complement of second has 5 states. [2021-11-20 06:33:38,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:33:38,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:33:38,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2021-11-20 06:33:38,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 1 letters. [2021-11-20 06:33:38,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:33:38,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 6 letters. Loop has 1 letters. [2021-11-20 06:33:38,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:33:38,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 2 letters. [2021-11-20 06:33:38,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:33:38,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-11-20 06:33:38,776 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:33:38,778 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-11-20 06:33:38,779 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:33:38,780 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:33:38,780 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:33:38,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:33:38,781 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:33:38,781 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:33:38,781 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:33:38,781 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:33:38,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:33:38,781 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:33:38,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:33:38,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:33:38 BoogieIcfgContainer [2021-11-20 06:33:38,788 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:33:38,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:33:38,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:33:38,789 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:33:38,790 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:33:37" (3/4) ... [2021-11-20 06:33:38,792 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:33:38,793 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:33:38,794 INFO L158 Benchmark]: Toolchain (without parser) took 2336.27ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 61.5MB in the beginning and 86.3MB in the end (delta: -24.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:33:38,794 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:33:38,795 INFO L158 Benchmark]: CACSL2BoogieTranslator took 258.20ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 78.5MB in the end (delta: -17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:33:38,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.06ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:33:38,797 INFO L158 Benchmark]: Boogie Preprocessor took 17.21ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 76.3MB in the end (delta: 855.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:33:38,798 INFO L158 Benchmark]: RCFGBuilder took 276.48ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 68.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:33:38,799 INFO L158 Benchmark]: BuchiAutomizer took 1732.90ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.7MB in the beginning and 87.1MB in the end (delta: -19.4MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2021-11-20 06:33:38,799 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 86.3MB in the end (delta: 820.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:33:38,818 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 77.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 258.20ms. Allocated memory is still 102.8MB. Free memory was 61.2MB in the beginning and 78.5MB in the end (delta: -17.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.06ms. Allocated memory is still 102.8MB. Free memory was 78.5MB in the beginning and 77.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.21ms. Allocated memory is still 102.8MB. Free memory was 77.2MB in the beginning and 76.3MB in the end (delta: 855.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.48ms. Allocated memory is still 102.8MB. Free memory was 76.3MB in the beginning and 68.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1732.90ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 67.7MB in the beginning and 87.1MB in the end (delta: -19.4MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 123.7MB. Free memory was 87.1MB in the beginning and 86.3MB in the end (delta: 820.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * c + 3 > 0 then 1 else 0), (if -2 * c + 3 > 0 then -2 * c + 3 else 2 * x + 2 * c + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 14 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:33:38,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:33:39,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f5dfe41-fb75-4481-a058-d68911481513/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE