./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.16.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_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/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_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/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_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/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 bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:09:54,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:09:54,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:09:54,192 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:09:54,193 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:09:54,199 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:09:54,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:09:54,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:09:54,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:09:54,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:09:54,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:09:54,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:09:54,218 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:09:54,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:09:54,223 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:09:54,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:09:54,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:09:54,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:09:54,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:09:54,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:09:54,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:09:54,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:09:54,259 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:09:54,260 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:09:54,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:09:54,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:09:54,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:09:54,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:09:54,269 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:09:54,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:09:54,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:09:54,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:09:54,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:09:54,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:09:54,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:09:54,279 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:09:54,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:09:54,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:09:54,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:09:54,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:09:54,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:09:54,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 07:09:54,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:09:54,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:09:54,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:09:54,338 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:09:54,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:09:54,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:09:54,341 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:09:54,341 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:09:54,341 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:09:54,342 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:09:54,343 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:09:54,343 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:09:54,344 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:09:54,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:09:54,344 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:09:54,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:09:54,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:09:54,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:09:54,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:09:54,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:09:54,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:09:54,346 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:09:54,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:09:54,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:09:54,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:09:54,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:09:54,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:09:54,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:09:54,350 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:09:54,351 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:09:54,352 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_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 [2021-11-20 07:09:54,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:09:54,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:09:54,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:09:54,766 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:09:54,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:09:54,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-restricted-15/b.16.c [2021-11-20 07:09:54,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/data/6a3b2fd79/718eed9fddf548139636f14cf0be6313/FLAG2af0d4095 [2021-11-20 07:09:55,391 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:09:55,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/sv-benchmarks/c/termination-restricted-15/b.16.c [2021-11-20 07:09:55,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/data/6a3b2fd79/718eed9fddf548139636f14cf0be6313/FLAG2af0d4095 [2021-11-20 07:09:55,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/data/6a3b2fd79/718eed9fddf548139636f14cf0be6313 [2021-11-20 07:09:55,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:09:55,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:09:55,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:09:55,773 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:09:55,776 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:09:55,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:09:55" (1/1) ... [2021-11-20 07:09:55,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7831f9f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:55, skipping insertion in model container [2021-11-20 07:09:55,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:09:55" (1/1) ... [2021-11-20 07:09:55,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:09:55,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:09:55,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:09:55,967 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:09:55,990 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:09:56,001 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:09:56,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56 WrapperNode [2021-11-20 07:09:56,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:09:56,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:09:56,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:09:56,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:09:56,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,039 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-11-20 07:09:56,039 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:09:56,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:09:56,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:09:56,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:09:56,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,059 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:09:56,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:09:56,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:09:56,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:09:56,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (1/1) ... [2021-11-20 07:09:56,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:56,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:56,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:09:56,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:09:56,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:09:56,226 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:09:56,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:09:56,319 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:09:56,326 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:09:56,327 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:09:56,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:09:56 BoogieIcfgContainer [2021-11-20 07:09:56,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:09:56,330 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:09:56,331 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:09:56,334 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:09:56,335 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:09:56,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:09:55" (1/3) ... [2021-11-20 07:09:56,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@facfa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:09:56, skipping insertion in model container [2021-11-20 07:09:56,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:09:56,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:09:56" (2/3) ... [2021-11-20 07:09:56,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@facfa66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:09:56, skipping insertion in model container [2021-11-20 07:09:56,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:09:56,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:09:56" (3/3) ... [2021-11-20 07:09:56,340 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.16.c [2021-11-20 07:09:56,399 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:09:56,399 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:09:56,400 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:09:56,400 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:09:56,400 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:09:56,400 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:09:56,400 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:09:56,400 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:09:56,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 07:09:56,445 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:09:56,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:09:56,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:09:56,452 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:09:56,452 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:09:56,452 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:09:56,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 07:09:56,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-20 07:09:56,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:09:56,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:09:56,456 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-20 07:09:56,456 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-20 07:09:56,463 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#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, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 10#L11-2true [2021-11-20 07:09:56,463 INFO L793 eck$LassoCheckResult]: Loop: 10#L11-2true assume !!(main_~x~0#1 > 0); 3#L12-2true assume !(main_~y~0#1 > 0); 7#L12-3true main_~x~0#1 := main_~x~0#1 - 1; 10#L11-2true [2021-11-20 07:09:56,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-20 07:09:56,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:56,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412079463] [2021-11-20 07:09:56,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:56,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,584 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:56,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,611 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:56,629 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-11-20 07:09:56,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:56,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949065909] [2021-11-20 07:09:56,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:56,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,643 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,663 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:56,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:56,667 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2021-11-20 07:09:56,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:56,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234050526] [2021-11-20 07:09:56,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:56,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:56,694 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:56,827 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:09:56,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:09:56,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:09:56,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:09:56,829 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:09:56,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:56,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:09:56,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:09:56,830 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2021-11-20 07:09:56,830 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:09:56,830 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:09:56,862 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 07:09:56,877 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 07:09:56,893 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 07:09:56,897 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 07:09:56,988 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:09:56,989 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:09:56,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:56,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:56,993 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:09:57,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:57,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 07:09:57,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:57,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,071 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:09:57,083 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:57,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 07:09:57,150 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:09:57,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:57,157 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:09:57,157 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:09:57,158 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:09:57,158 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:09:57,158 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:09:57,158 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,158 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:09:57,158 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:09:57,158 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2021-11-20 07:09:57,158 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:09:57,159 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:09:57,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:09:57,175 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 07:09:57,180 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 07:09:57,186 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 07:09:57,258 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:09:57,263 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:09:57,264 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 07:09:57,290 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 07:09:57,301 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:09:57,301 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:09:57,301 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:09:57,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:09:57,302 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:09:57,304 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:09:57,304 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:09:57,318 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:09:57,322 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-20 07:09:57,322 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-20 07:09:57,323 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,325 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,335 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:09:57,335 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:09:57,336 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:09:57,337 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2021-11-20 07:09:57,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 07:09:57,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:57,380 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:09:57,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:57,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:09:57,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:09:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:57,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:09:57,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:09:57,497 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 07:09:57,534 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 07:09:57,536 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:09:57,576 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 24 states and 36 transitions. Complement of second has 7 states. [2021-11-20 07:09:57,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-11-20 07:09:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 07:09:57,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-11-20 07:09:57,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-20 07:09:57,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:57,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-20 07:09:57,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:57,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-20 07:09:57,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:57,587 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-11-20 07:09:57,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 07:09:57,597 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-20 07:09:57,599 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-20 07:09:57,599 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-20 07:09:57,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-20 07:09:57,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-20 07:09:57,600 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-20 07:09:57,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-20 07:09:57,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-20 07:09:57,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 states have internal predecessors, (10), 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 07:09:57,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-11-20 07:09:57,628 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-20 07:09:57,628 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-20 07:09:57,628 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:09:57,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-11-20 07:09:57,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-20 07:09:57,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:09:57,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:09:57,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-20 07:09:57,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-20 07:09:57,631 INFO L791 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 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, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 81#L11-2 assume !!(main_~x~0#1 > 0); 75#L12-2 [2021-11-20 07:09:57,631 INFO L793 eck$LassoCheckResult]: Loop: 75#L12-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 75#L12-2 [2021-11-20 07:09:57,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:57,633 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-20 07:09:57,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:57,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636371051] [2021-11-20 07:09:57,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:57,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,645 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,651 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:57,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-20 07:09:57,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:57,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347334584] [2021-11-20 07:09:57,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:57,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,671 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,681 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:57,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:57,682 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-11-20 07:09:57,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:09:57,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116659718] [2021-11-20 07:09:57,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:09:57,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:09:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,693 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:09:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:09:57,696 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:09:57,724 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:09:57,724 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:09:57,724 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:09:57,724 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:09:57,724 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-20 07:09:57,725 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,725 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:09:57,725 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:09:57,725 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2021-11-20 07:09:57,725 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:09:57,725 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:09:57,727 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 07:09:57,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:09:57,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 07:09:57,778 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:09:57,778 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-20 07:09:57,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,783 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 07:09:57,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:09:57,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:57,814 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:09:57,814 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:09:57,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-20 07:09:57,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,858 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 07:09:57,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:09:57,862 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:57,878 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-20 07:09:57,878 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-20 07:09:57,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:57,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,904 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 07:09:57,910 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-20 07:09:57,910 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:57,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:57,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:57,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:57,941 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:57,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-20 07:09:57,943 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-20 07:09:57,943 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-20 07:09:58,000 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-20 07:09:58,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:58,007 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 07:09:58,007 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 07:09:58,007 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 07:09:58,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 07:09:58,007 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 07:09:58,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:58,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 07:09:58,008 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 07:09:58,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2021-11-20 07:09:58,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 07:09:58,008 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 07:09:58,009 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 07:09:58,015 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 07:09:58,027 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 07:09:58,118 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 07:09:58,118 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 07:09:58,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:58,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:58,120 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:58,125 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 07:09:58,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:09:58,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:09:58,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:09:58,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:09:58,139 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:09:58,140 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:09:58,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-20 07:09:58,154 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:09:58,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:58,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2021-11-20 07:09:58,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:58,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:58,238 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:58,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-20 07:09:58,250 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 07:09:58,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:09:58,258 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:09:58,258 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:09:58,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:09:58,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 07:09:58,261 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 07:09:58,274 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 07:09:58,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:58,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:58,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:58,296 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:58,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-20 07:09:58,298 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 07:09:58,305 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 07:09:58,305 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 07:09:58,306 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 07:09:58,306 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 07:09:58,306 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 07:09:58,310 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-20 07:09:58,310 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 07:09:58,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 07:09:58,337 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-20 07:09:58,338 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-20 07:09:58,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:09:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:09:58,340 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:09:58,342 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 07:09:58,342 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-20 07:09:58,342 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 07:09:58,342 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2021-11-20 07:09:58,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-20 07:09:58,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:58,366 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-20 07:09:58,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:09:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:58,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 07:09:58,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:09:58,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:09:58,403 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 07:09:58,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:09:58,404 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 07:09:58,405 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 07:09:58,406 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 07:09:58,420 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 14 states and 19 transitions. Complement of second has 4 states. [2021-11-20 07:09:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 07:09:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 07:09:58,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-20 07:09:58,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-20 07:09:58,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:58,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-20 07:09:58,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:58,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-20 07:09:58,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 07:09:58,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-11-20 07:09:58,426 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:09:58,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-20 07:09:58,427 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 07:09:58,427 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 07:09:58,427 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 07:09:58,427 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:09:58,427 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:09:58,428 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:09:58,428 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:09:58,428 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:09:58,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:09:58,428 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 07:09:58,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 07:09:58,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:09:58 BoogieIcfgContainer [2021-11-20 07:09:58,442 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:09:58,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:09:58,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:09:58,444 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:09:58,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:09:56" (3/4) ... [2021-11-20 07:09:58,449 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:09:58,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:09:58,452 INFO L158 Benchmark]: Toolchain (without parser) took 2692.12ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 91.4MB in the end (delta: 250.3kB). Peak memory consumption was 234.2kB. Max. memory is 16.1GB. [2021-11-20 07:09:58,453 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:09:58,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.33ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 103.2MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:09:58,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.15ms. Allocated memory is still 125.8MB. Free memory was 103.2MB in the beginning and 101.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:09:58,456 INFO L158 Benchmark]: Boogie Preprocessor took 21.01ms. Allocated memory is still 125.8MB. Free memory was 101.9MB in the beginning and 101.2MB in the end (delta: 687.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:09:58,459 INFO L158 Benchmark]: RCFGBuilder took 267.05ms. Allocated memory is still 125.8MB. Free memory was 101.2MB in the beginning and 93.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:09:58,461 INFO L158 Benchmark]: BuchiAutomizer took 2111.82ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 91.4MB in the end (delta: 1.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-20 07:09:58,462 INFO L158 Benchmark]: Witness Printer took 6.24ms. Allocated memory is still 125.8MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:09:58,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 88.1MB. Free memory was 58.7MB in the beginning and 58.7MB in the end (delta: 30.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.33ms. Allocated memory is still 125.8MB. Free memory was 91.7MB in the beginning and 103.2MB in the end (delta: -11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.15ms. Allocated memory is still 125.8MB. Free memory was 103.2MB in the beginning and 101.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.01ms. Allocated memory is still 125.8MB. Free memory was 101.9MB in the beginning and 101.2MB in the end (delta: 687.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.05ms. Allocated memory is still 125.8MB. Free memory was 101.2MB in the beginning and 93.3MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2111.82ms. Allocated memory is still 125.8MB. Free memory was 93.3MB in the beginning and 91.4MB in the end (delta: 1.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 6.24ms. Allocated memory is still 125.8MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax206 hnf100 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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 07:09:58,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-20 07:09:58,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab4ef5f-e32f-4c20-93f5-4ba136380ba7/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