./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 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G --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-7e70bad [2021-11-23 14:04:52,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 14:04:52,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 14:04:53,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 14:04:53,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 14:04:53,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 14:04:53,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 14:04:53,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 14:04:53,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 14:04:53,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 14:04:53,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 14:04:53,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 14:04:53,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 14:04:53,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 14:04:53,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 14:04:53,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 14:04:53,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 14:04:53,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 14:04:53,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 14:04:53,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 14:04:53,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 14:04:53,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 14:04:53,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 14:04:53,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 14:04:53,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 14:04:53,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 14:04:53,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 14:04:53,092 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 14:04:53,093 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 14:04:53,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 14:04:53,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 14:04:53,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 14:04:53,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 14:04:53,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 14:04:53,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 14:04:53,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 14:04:53,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 14:04:53,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 14:04:53,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 14:04:53,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 14:04:53,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 14:04:53,109 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-23 14:04:53,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 14:04:53,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 14:04:53,161 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 14:04:53,161 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 14:04:53,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 14:04:53,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 14:04:53,163 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 14:04:53,164 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-23 14:04:53,164 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-23 14:04:53,164 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-23 14:04:53,164 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-23 14:04:53,165 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-23 14:04:53,165 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-23 14:04:53,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 14:04:53,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 14:04:53,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 14:04:53,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 14:04:53,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-23 14:04:53,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-23 14:04:53,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-23 14:04:53,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 14:04:53,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-23 14:04:53,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 14:04:53,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-23 14:04:53,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 14:04:53,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 14:04:53,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 14:04:53,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 14:04:53,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 14:04:53,170 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-23 14:04:53,170 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_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd5ab01fc166812a75c8bdc5c42111290012e12e0fb0aba380271d0f3f7f7767 [2021-11-23 14:04:53,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 14:04:53,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 14:04:53,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 14:04:53,503 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 14:04:53,504 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 14:04:53,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/termination-restricted-15/b.16.c [2021-11-23 14:04:53,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/data/e21697a64/84a8c773ddaa487d9fb9cd1e78823c94/FLAGba35994ba [2021-11-23 14:04:54,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 14:04:54,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/sv-benchmarks/c/termination-restricted-15/b.16.c [2021-11-23 14:04:54,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/data/e21697a64/84a8c773ddaa487d9fb9cd1e78823c94/FLAGba35994ba [2021-11-23 14:04:54,557 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/data/e21697a64/84a8c773ddaa487d9fb9cd1e78823c94 [2021-11-23 14:04:54,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 14:04:54,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 14:04:54,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:54,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 14:04:54,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 14:04:54,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26805d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54, skipping insertion in model container [2021-11-23 14:04:54,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 14:04:54,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 14:04:54,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:54,844 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 14:04:54,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 14:04:54,875 INFO L208 MainTranslator]: Completed translation [2021-11-23 14:04:54,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54 WrapperNode [2021-11-23 14:04:54,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 14:04:54,877 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:54,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 14:04:54,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 14:04:54,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,893 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,913 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2021-11-23 14:04:54,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 14:04:54,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 14:04:54,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 14:04:54,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 14:04:54,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 14:04:54,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 14:04:54,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 14:04:54,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 14:04:54,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (1/1) ... [2021-11-23 14:04:54,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:54,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:54,987 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-23 14:04:55,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 14:04:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 14:04:55,111 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 14:04:55,113 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 14:04:55,206 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 14:04:55,214 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 14:04:55,214 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 14:04:55,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:55 BoogieIcfgContainer [2021-11-23 14:04:55,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 14:04:55,218 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-23 14:04:55,218 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-23 14:04:55,222 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-23 14:04:55,223 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:04:55,223 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:04:54" (1/3) ... [2021-11-23 14:04:55,225 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76eced8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:55, skipping insertion in model container [2021-11-23 14:04:55,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:04:55,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:54" (2/3) ... [2021-11-23 14:04:55,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76eced8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:04:55, skipping insertion in model container [2021-11-23 14:04:55,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-23 14:04:55,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:55" (3/3) ... [2021-11-23 14:04:55,228 INFO L388 chiAutomizerObserver]: Analyzing ICFG b.16.c [2021-11-23 14:04:55,282 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-23 14:04:55,282 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-23 14:04:55,282 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-23 14:04:55,283 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-23 14:04:55,283 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-23 14:04:55,283 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-23 14:04:55,283 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-23 14:04:55,283 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-23 14:04:55,299 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) [2021-11-23 14:04:55,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 14:04:55,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:04:55,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:04:55,327 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 14:04:55,327 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 14:04:55,328 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-23 14:04:55,328 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) [2021-11-23 14:04:55,329 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-23 14:04:55,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:04:55,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:04:55,330 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-23 14:04:55,330 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-23 14:04:55,338 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 [2021-11-23 14:04:55,338 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 [2021-11-23 14:04:55,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:55,345 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-23 14:04:55,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:55,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329637311] [2021-11-23 14:04:55,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:55,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,442 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,463 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:55,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:55,467 INFO L85 PathProgramCache]: Analyzing trace with hash 40944, now seen corresponding path program 1 times [2021-11-23 14:04:55,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:55,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256191366] [2021-11-23 14:04:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:55,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,479 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,485 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:55,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:55,487 INFO L85 PathProgramCache]: Analyzing trace with hash 28699886, now seen corresponding path program 1 times [2021-11-23 14:04:55,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:55,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116666512] [2021-11-23 14:04:55,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:55,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,502 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:55,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:55,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:55,611 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 14:04:55,612 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 14:04:55,612 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 14:04:55,612 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 14:04:55,612 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 14:04:55,613 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:55,613 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 14:04:55,613 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 14:04:55,613 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2021-11-23 14:04:55,614 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 14:04:55,614 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 14:04:55,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,756 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 14:04:55,756 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 14:04:55,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:55,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:55,793 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:55,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:04:55,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:55,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-23 14:04:55,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:55,865 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:55,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:55,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:55,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-23 14:04:55,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 14:04:55,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:55,929 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 14:04:55,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:55,936 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 14:04:55,937 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 14:04:55,937 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 14:04:55,937 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 14:04:55,937 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 14:04:55,937 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:55,937 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 14:04:55,937 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 14:04:55,937 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration1_Loop [2021-11-23 14:04:55,937 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 14:04:55,938 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 14:04:55,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:55,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,071 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 14:04:56,076 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 14:04:56,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,110 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 [2021-11-23 14:04:56,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 14:04:56,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 14:04:56,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 14:04:56,128 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 14:04:56,128 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 14:04:56,133 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 14:04:56,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 14:04:56,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-23 14:04:56,140 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 14:04:56,154 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2021-11-23 14:04:56,154 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-23 14:04:56,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,169 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 14:04:56,170 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 14:04:56,170 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 14:04:56,171 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 [] [2021-11-23 14:04:56,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-23 14:04:56,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:56,206 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 14:04:56,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:56,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:04:56,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:56,258 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 14:04:56,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:56,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:56,338 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 [2021-11-23 14:04:56,340 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) [2021-11-23 14:04:56,391 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. [2021-11-23 14:04:56,421 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 [2021-11-23 14:04:56,427 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) [2021-11-23 14:04:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2021-11-23 14:04:56,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-23 14:04:56,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:56,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-23 14:04:56,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:56,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-23 14:04:56,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:56,433 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 36 transitions. [2021-11-23 14:04:56,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 14:04:56,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2021-11-23 14:04:56,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-23 14:04:56,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-23 14:04:56,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2021-11-23 14:04:56,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-11-23 14:04:56,457 INFO L681 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2021-11-23 14:04:56,506 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2021-11-23 14:04:56,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2021-11-23 14:04:56,524 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) [2021-11-23 14:04:56,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2021-11-23 14:04:56,526 INFO L704 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-23 14:04:56,526 INFO L587 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2021-11-23 14:04:56,526 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-23 14:04:56,526 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2021-11-23 14:04:56,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-23 14:04:56,527 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-23 14:04:56,527 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-23 14:04:56,527 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-23 14:04:56,527 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-23 14:04:56,528 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 [2021-11-23 14:04:56,528 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 [2021-11-23 14:04:56,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:56,529 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-23 14:04:56,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:56,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180307293] [2021-11-23 14:04:56,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:56,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,535 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,539 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2021-11-23 14:04:56,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44325453] [2021-11-23 14:04:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:56,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,547 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,551 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:56,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:56,552 INFO L85 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2021-11-23 14:04:56,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:04:56,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141351124] [2021-11-23 14:04:56,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:04:56,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:04:56,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,558 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 14:04:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 14:04:56,563 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 14:04:56,587 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 14:04:56,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 14:04:56,587 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 14:04:56,587 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 14:04:56,587 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-23 14:04:56,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 14:04:56,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 14:04:56,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2021-11-23 14:04:56,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 14:04:56,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 14:04:56,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,680 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 14:04:56,681 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-23 14:04:56,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,685 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-23 14:04:56,687 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:04:56,687 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:56,714 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:04:56,714 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: [] [2021-11-23 14:04:56,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-11-23 14:04:56,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,755 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-23 14:04:56,761 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:04:56,761 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:56,776 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-23 14:04:56,776 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: [] [2021-11-23 14:04:56,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:56,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,807 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-23 14:04:56,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-23 14:04:56,814 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:56,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:56,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,847 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-23 14:04:56,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-23 14:04:56,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-23 14:04:56,890 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-23 14:04:56,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-23 14:04:56,895 INFO L210 LassoAnalysis]: Preferences: [2021-11-23 14:04:56,895 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-23 14:04:56,896 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-23 14:04:56,896 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-23 14:04:56,896 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-23 14:04:56,896 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,896 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-23 14:04:56,896 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-23 14:04:56,896 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.16.c_Iteration2_Loop [2021-11-23 14:04:56,897 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-23 14:04:56,897 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-23 14:04:56,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-23 14:04:56,947 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-23 14:04:56,947 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-23 14:04:56,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:56,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:56,948 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:56,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-23 14:04:56,955 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 [2021-11-23 14:04:56,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 14:04:56,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 14:04:56,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 14:04:56,963 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 14:04:56,971 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 14:04:56,971 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 14:04:56,976 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 14:04:56,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:57,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:57,001 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:57,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-23 14:04:57,006 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-23 14:04:57,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 14:04:57,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 14:04:57,018 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 14:04:57,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 14:04:57,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-23 14:04:57,023 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-23 14:04:57,041 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-23 14:04:57,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:57,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:57,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:57,074 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:57,076 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 [2021-11-23 14:04:57,086 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-23 14:04:57,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-23 14:04:57,087 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-23 14:04:57,087 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-23 14:04:57,087 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-23 14:04:57,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-23 14:04:57,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-23 14:04:57,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-23 14:04:57,114 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-23 14:04:57,121 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-23 14:04:57,121 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-23 14:04:57,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-23 14:04:57,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:04:57,125 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-23 14:04:57,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-23 14:04:57,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-23 14:04:57,131 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-23 14:04:57,131 INFO L513 LassoAnalysis]: Proved termination. [2021-11-23 14:04:57,131 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 [] [2021-11-23 14:04:57,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:57,167 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-23 14:04:57,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:04:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:57,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 14:04:57,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 14:04:57,196 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-23 14:04:57,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:04:57,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 14:04:57,197 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 [2021-11-23 14:04:57,198 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) [2021-11-23 14:04:57,206 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. [2021-11-23 14:04:57,206 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 [2021-11-23 14:04:57,207 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) [2021-11-23 14:04:57,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2021-11-23 14:04:57,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-23 14:04:57,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:57,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-23 14:04:57,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:57,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-23 14:04:57,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-23 14:04:57,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2021-11-23 14:04:57,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 14:04:57,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2021-11-23 14:04:57,211 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-23 14:04:57,211 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-23 14:04:57,211 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-23 14:04:57,211 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-23 14:04:57,211 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 14:04:57,211 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 14:04:57,211 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 14:04:57,211 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-23 14:04:57,211 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-23 14:04:57,212 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-23 14:04:57,212 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-23 14:04:57,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:04:57 BoogieIcfgContainer [2021-11-23 14:04:57,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-23 14:04:57,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 14:04:57,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 14:04:57,221 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 14:04:57,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:55" (3/4) ... [2021-11-23 14:04:57,224 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 14:04:57,225 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 14:04:57,226 INFO L158 Benchmark]: Toolchain (without parser) took 2664.41ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 67.0MB in the beginning and 85.2MB in the end (delta: -18.2MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2021-11-23 14:04:57,226 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:04:57,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.25ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 83.9MB in the end (delta: -17.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 14:04:57,227 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.28ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 82.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:04:57,228 INFO L158 Benchmark]: Boogie Preprocessor took 24.80ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.8MB in the end (delta: 871.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 14:04:57,229 INFO L158 Benchmark]: RCFGBuilder took 276.53ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 73.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 14:04:57,229 INFO L158 Benchmark]: BuchiAutomizer took 2002.27ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 73.4MB in the beginning and 85.2MB in the end (delta: -11.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2021-11-23 14:04:57,230 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 134.2MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 14:04:57,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 83.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.25ms. Allocated memory is still 109.1MB. Free memory was 66.8MB in the beginning and 83.9MB in the end (delta: -17.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.28ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 82.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.80ms. Allocated memory is still 109.1MB. Free memory was 82.7MB in the beginning and 81.8MB in the end (delta: 871.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 276.53ms. Allocated memory is still 109.1MB. Free memory was 81.8MB in the beginning and 73.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2002.27ms. Allocated memory was 109.1MB in the beginning and 134.2MB in the end (delta: 25.2MB). Free memory was 73.4MB in the beginning and 85.2MB in the end (delta: -11.8MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 134.2MB. Free memory is still 85.2MB. 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 1.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. 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: 28ms 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! [2021-11-23 14:04:57,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-23 14:04:57,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19b1792e-0650-4273-9c47-ab4bc7853941/bin/uautomizer-wIGwrQj20G/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