./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/Sequence.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/Sequence.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0 --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 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:05:53,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:05:53,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:05:53,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:05:53,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:05:53,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:05:53,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:05:53,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:05:53,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:05:53,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:05:53,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:05:53,821 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:05:53,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:05:53,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:05:53,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:05:53,828 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:05:53,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:05:53,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:05:53,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:05:53,838 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:05:53,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:05:53,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:05:53,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:05:53,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:05:53,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:05:53,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:05:53,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:05:53,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:05:53,863 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:05:53,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:05:53,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:05:53,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:05:53,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:05:53,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:05:53,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:05:53,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:05:53,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:05:53,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:05:53,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:05:53,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:05:53,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:05:53,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-22 16:05:53,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:05:53,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:05:53,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:05:53,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:05:53,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:05:53,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:05:53,929 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:05:53,930 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-22 16:05:53,930 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-22 16:05:53,930 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-22 16:05:53,930 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-22 16:05:53,931 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-22 16:05:53,931 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-22 16:05:53,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:05:53,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:05:53,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:05:53,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:05:53,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-22 16:05:53,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-22 16:05:53,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-22 16:05:53,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:05:53,933 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-22 16:05:53,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:05:53,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-22 16:05:53,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:05:53,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:05:53,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:05:53,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:05:53,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:05:53,937 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-22 16:05:53,937 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_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95ccbbbc448c04acb65590867534531dd0d1de0ae6cfb9bc69f5ca4c10abccd4 [2021-11-22 16:05:54,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:05:54,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:05:54,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:05:54,345 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:05:54,346 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:05:54,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-11-22 16:05:54,454 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/data/d5a2b7a38/4b5c6bce84174dfc9c04258402942318/FLAG96126ff29 [2021-11-22 16:05:54,995 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:05:54,997 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/sv-benchmarks/c/termination-restricted-15/Sequence.c [2021-11-22 16:05:55,006 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/data/d5a2b7a38/4b5c6bce84174dfc9c04258402942318/FLAG96126ff29 [2021-11-22 16:05:55,367 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/data/d5a2b7a38/4b5c6bce84174dfc9c04258402942318 [2021-11-22 16:05:55,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:05:55,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:05:55,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:05:55,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:05:55,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:05:55,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bd790 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55, skipping insertion in model container [2021-11-22 16:05:55,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,421 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:05:55,437 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:05:55,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:05:55,623 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:05:55,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:05:55,676 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:05:55,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55 WrapperNode [2021-11-22 16:05:55,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:05:55,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:05:55,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:05:55,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:05:55,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,714 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2021-11-22 16:05:55,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:05:55,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:05:55,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:05:55,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:05:55,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:05:55,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:05:55,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:05:55,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:05:55,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (1/1) ... [2021-11-22 16:05:55,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:55,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:55,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:55,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-22 16:05:55,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:05:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:05:55,881 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:05:55,888 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:05:55,958 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:05:55,965 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:05:55,966 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 16:05:55,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:05:55 BoogieIcfgContainer [2021-11-22 16:05:55,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:05:55,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-22 16:05:55,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-22 16:05:55,972 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-22 16:05:55,973 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:05:55,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 04:05:55" (1/3) ... [2021-11-22 16:05:55,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@106efda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 04:05:55, skipping insertion in model container [2021-11-22 16:05:55,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:05:55,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:05:55" (2/3) ... [2021-11-22 16:05:55,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@106efda6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 04:05:55, skipping insertion in model container [2021-11-22 16:05:55,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-22 16:05:55,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:05:55" (3/3) ... [2021-11-22 16:05:55,978 INFO L388 chiAutomizerObserver]: Analyzing ICFG Sequence.c [2021-11-22 16:05:56,032 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-22 16:05:56,033 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-22 16:05:56,033 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-22 16:05:56,033 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-22 16:05:56,033 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-22 16:05:56,034 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-22 16:05:56,034 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-22 16:05:56,034 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-22 16:05:56,051 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-22 16:05:56,083 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-11-22 16:05:56,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:05:56,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:05:56,095 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 16:05:56,096 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-22 16:05:56,096 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-22 16:05:56,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2021-11-22 16:05:56,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2021-11-22 16:05:56,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:05:56,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:05:56,101 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-22 16:05:56,101 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-22 16:05:56,110 INFO L791 eck$LassoCheckResult]: Stem: 5#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_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 9#L11-2true [2021-11-22 16:05:56,111 INFO L793 eck$LassoCheckResult]: Loop: 9#L11-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 9#L11-2true [2021-11-22 16:05:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:56,122 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-22 16:05:56,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:05:56,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826821448] [2021-11-22 16:05:56,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:05:56,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:05:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,219 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:05:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,237 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:05:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2021-11-22 16:05:56,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:05:56,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787538885] [2021-11-22 16:05:56,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:05:56,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:05:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:05:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,258 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:05:56,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:56,261 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2021-11-22 16:05:56,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:05:56,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955115497] [2021-11-22 16:05:56,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:05:56,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:05:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,272 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:05:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:56,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:05:56,347 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:05:56,348 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:05:56,348 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:05:56,348 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:05:56,349 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 16:05:56,349 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,349 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:05:56,349 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:05:56,349 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-11-22 16:05:56,349 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:05:56,350 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:05:56,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:05:56,496 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 16:05:56,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:56,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:56,575 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:05:56,575 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:56,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-22 16:05:56,606 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 16:05:56,606 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 16:05:56,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:56,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:56,646 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:56,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-22 16:05:56,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:05:56,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:56,678 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 16:05:56,678 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-22 16:05:56,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:56,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:56,719 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:56,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-22 16:05:56,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:05:56,721 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:56,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2021-11-22 16:05:56,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:56,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:56,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-22 16:05:56,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 16:05:56,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:56,858 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 16:05:56,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:56,864 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:05:56,864 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:05:56,864 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:05:56,864 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:05:56,864 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 16:05:56,864 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,864 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:05:56,864 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:05:56,865 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration1_Loop [2021-11-22 16:05:56,865 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:05:56,865 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:05:56,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:56,971 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:05:56,976 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 16:05:56,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:56,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:56,986 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:56,989 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 [2021-11-22 16:05:57,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:05:57,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:05:57,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:05:57,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:05:57,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-22 16:05:57,019 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 16:05:57,019 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 16:05:57,045 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 16:05:57,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:57,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-22 16:05:57,078 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 [2021-11-22 16:05:57,089 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:05:57,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:05:57,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:05:57,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:05:57,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 16:05:57,101 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 16:05:57,116 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 16:05:57,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-11-22 16:05:57,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,143 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-22 16:05:57,146 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 [2021-11-22 16:05:57,155 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:05:57,155 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 16:05:57,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:05:57,156 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:05:57,156 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:05:57,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 16:05:57,159 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 16:05:57,182 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 16:05:57,187 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 16:05:57,187 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 16:05:57,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,227 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 16:05:57,233 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 16:05:57,234 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 16:05:57,234 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2021-11-22 16:05:57,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-11-22 16:05:57,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:57,282 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 16:05:57,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:05:57,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:05:57,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:05:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:05:57,361 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 16:05:57,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:05:57,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:05:57,421 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 [2021-11-22 16:05:57,423 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-22 16:05:57,492 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 20 states and 29 transitions. Complement of second has 5 states. [2021-11-22 16:05:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-22 16:05:57,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-22 16:05:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2021-11-22 16:05:57,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-22 16:05:57,508 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:57,508 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-22 16:05:57,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:57,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-11-22 16:05:57,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:57,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2021-11-22 16:05:57,517 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-22 16:05:57,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 6 states and 8 transitions. [2021-11-22 16:05:57,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2021-11-22 16:05:57,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2021-11-22 16:05:57,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2021-11-22 16:05:57,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:05:57,526 INFO L681 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2021-11-22 16:05:57,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2021-11-22 16:05:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2021-11-22 16:05:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2021-11-22 16:05:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2021-11-22 16:05:57,559 INFO L704 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-11-22 16:05:57,559 INFO L587 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2021-11-22 16:05:57,559 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-22 16:05:57,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2021-11-22 16:05:57,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-22 16:05:57,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-22 16:05:57,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-22 16:05:57,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2021-11-22 16:05:57,571 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-11-22 16:05:57,571 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-22 16:05:57,571 INFO L791 eck$LassoCheckResult]: Stem: 61#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 62#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1, main_~j~0#1;havoc main_~i~0#1;havoc main_~j~0#1;main_~i~0#1 := 0;main_~j~0#1 := 5; 63#L11-2 assume !(main_~i~0#1 < 100); 60#L13-1 [2021-11-22 16:05:57,572 INFO L793 eck$LassoCheckResult]: Loop: 60#L13-1 assume !!(main_~j~0#1 < 21);main_~j~0#1 := 3 + main_~j~0#1; 60#L13-1 [2021-11-22 16:05:57,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:57,578 INFO L85 PathProgramCache]: Analyzing trace with hash 29862, now seen corresponding path program 1 times [2021-11-22 16:05:57,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:05:57,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494057328] [2021-11-22 16:05:57,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:05:57,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:05:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:05:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:05:57,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:05:57,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494057328] [2021-11-22 16:05:57,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494057328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:05:57,635 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:05:57,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:05:57,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573642832] [2021-11-22 16:05:57,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:05:57,641 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-11-22 16:05:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2021-11-22 16:05:57,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:05:57,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350828676] [2021-11-22 16:05:57,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:05:57,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:05:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:57,655 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:05:57,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:05:57,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:05:57,692 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:05:57,693 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:05:57,693 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:05:57,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:05:57,693 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-22 16:05:57,694 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,694 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:05:57,694 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:05:57,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-11-22 16:05:57,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:05:57,694 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:05:57,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,749 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:05:57,749 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-22 16:05:57,750 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,751 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-11-22 16:05:57,757 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:05:57,758 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:57,786 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-22 16:05:57,786 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: [] [2021-11-22 16:05:57,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:57,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,823 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-11-22 16:05:57,825 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-22 16:05:57,825 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:57,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:57,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,861 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-11-22 16:05:57,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-22 16:05:57,863 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-22 16:05:57,903 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-22 16:05:57,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:57,906 INFO L210 LassoAnalysis]: Preferences: [2021-11-22 16:05:57,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-22 16:05:57,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-22 16:05:57,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-22 16:05:57,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-22 16:05:57,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-22 16:05:57,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-22 16:05:57,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: Sequence.c_Iteration2_Loop [2021-11-22 16:05:57,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-22 16:05:57,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-22 16:05:57,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-22 16:05:57,965 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-22 16:05:57,966 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-22 16:05:57,966 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:57,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:57,979 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:57,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-11-22 16:05:57,984 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 [2021-11-22 16:05:57,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:05:57,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:05:57,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:05:57,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:05:58,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-22 16:05:58,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-22 16:05:58,018 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-22 16:05:58,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:58,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:58,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:58,052 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:58,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-11-22 16:05:58,059 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 [2021-11-22 16:05:58,068 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-22 16:05:58,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-22 16:05:58,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-22 16:05:58,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-22 16:05:58,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-22 16:05:58,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-22 16:05:58,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-22 16:05:58,090 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-22 16:05:58,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-22 16:05:58,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-22 16:05:58,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-22 16:05:58,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:05:58,098 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-22 16:05:58,109 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-22 16:05:58,109 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-22 16:05:58,109 INFO L513 LassoAnalysis]: Proved termination. [2021-11-22 16:05:58,109 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0#1) = -2*ULTIMATE.start_main_~j~0#1 + 43 Supporting invariants [] [2021-11-22 16:05:58,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-11-22 16:05:58,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:58,155 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-22 16:05:58,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:05:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:05:58,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 16:05:58,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:05:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:05:58,201 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-22 16:05:58,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:05:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:05:58,203 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 [2021-11-22 16:05:58,204 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 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) [2021-11-22 16:05:58,214 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. 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 6 states and 8 transitions. Complement of second has 2 states. [2021-11-22 16:05:58,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2021-11-22 16:05:58,215 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) [2021-11-22 16:05:58,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2021-11-22 16:05:58,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2021-11-22 16:05:58,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:58,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2021-11-22 16:05:58,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:58,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2021-11-22 16:05:58,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-22 16:05:58,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2021-11-22 16:05:58,220 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 16:05:58,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2021-11-22 16:05:58,226 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 16:05:58,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 16:05:58,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 16:05:58,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:05:58,226 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:05:58,227 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:05:58,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:05:58,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:05:58,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:05:58,233 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2021-11-22 16:05:58,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:05:58,239 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-11-22 16:05:58,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:05:58,242 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-11-22 16:05:58,242 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 16:05:58,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:05:58,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-22 16:05:58,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-22 16:05:58,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-22 16:05:58,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-22 16:05:58,244 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:05:58,244 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:05:58,244 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:05:58,244 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-22 16:05:58,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:05:58,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-22 16:05:58,245 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-22 16:05:58,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 04:05:58 BoogieIcfgContainer [2021-11-22 16:05:58,261 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-22 16:05:58,262 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:05:58,262 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:05:58,263 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:05:58,263 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:05:55" (3/4) ... [2021-11-22 16:05:58,267 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:05:58,267 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:05:58,269 INFO L158 Benchmark]: Toolchain (without parser) took 2884.56ms. Allocated memory is still 115.3MB. Free memory was 75.8MB in the beginning and 67.0MB in the end (delta: 8.7MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-22 16:05:58,269 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:05:58,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.15ms. Allocated memory is still 115.3MB. Free memory was 75.5MB in the beginning and 91.6MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:05:58,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.76ms. Allocated memory is still 115.3MB. Free memory was 91.6MB in the beginning and 90.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:05:58,275 INFO L158 Benchmark]: Boogie Preprocessor took 19.59ms. Allocated memory is still 115.3MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 939.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:05:58,276 INFO L158 Benchmark]: RCFGBuilder took 231.06ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 81.5MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 16:05:58,281 INFO L158 Benchmark]: BuchiAutomizer took 2292.85ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 67.6MB in the end (delta: 13.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. [2021-11-22 16:05:58,281 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 115.3MB. Free memory was 67.6MB in the beginning and 67.0MB in the end (delta: 545.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:05:58,289 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 115.3MB. Free memory is still 91.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.15ms. Allocated memory is still 115.3MB. Free memory was 75.5MB in the beginning and 91.6MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.76ms. Allocated memory is still 115.3MB. Free memory was 91.6MB in the beginning and 90.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.59ms. Allocated memory is still 115.3MB. Free memory was 90.5MB in the beginning and 89.5MB in the end (delta: 939.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.06ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 81.5MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2292.85ms. Allocated memory is still 115.3MB. Free memory was 81.5MB in the beginning and 67.6MB in the end (delta: 13.9MB). Peak memory consumption was 17.5MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 115.3MB. Free memory was 67.6MB in the beginning and 67.0MB in the end (delta: 545.1kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 43 and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. 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 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 67ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-22 16:05:58,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-11-22 16:05:58,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85983427-b4be-4e78-ad08-9fcd4c44d3a4/bin/uautomizer-w2VwFs6gM0/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