./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC --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 5e607d57754c4f188315c4983a58e4a794edbb35 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:21:54,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:21:54,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:21:54,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:21:54,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:21:54,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:21:54,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:21:54,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:21:54,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:21:54,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:21:54,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:21:54,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:21:54,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:21:54,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:21:54,580 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:21:54,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:21:54,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:21:54,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:21:54,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:21:54,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:21:54,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:21:54,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:21:54,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:21:54,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:21:54,613 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:21:54,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:21:54,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:21:54,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:21:54,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:21:54,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:21:54,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:21:54,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:21:54,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:21:54,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:21:54,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:21:54,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:21:54,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:21:54,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:21:54,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:21:54,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:21:54,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:21:54,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-11 00:21:54,670 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:21:54,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:21:54,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:21:54,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:21:54,679 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:21:54,679 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:21:54,680 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:21:54,680 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:21:54,680 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:21:54,680 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:21:54,681 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:21:54,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:21:54,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:21:54,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:21:54,682 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:21:54,682 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:21:54,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:21:54,683 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:21:54,683 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:21:54,683 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:21:54,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:21:54,684 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:21:54,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:21:54,684 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:21:54,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:21:54,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:21:54,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:21:54,687 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:21:54,687 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_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5e607d57754c4f188315c4983a58e4a794edbb35 [2021-10-11 00:21:54,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:21:54,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:21:54,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:21:54,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:21:54,968 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:21:54,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:21:55,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/data/8b8422d1d/cbb1f1e4a36543cba6cc8e0db7c9a391/FLAG362efdff4 [2021-10-11 00:21:55,452 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:21:55,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/sv-benchmarks/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:21:55,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/data/8b8422d1d/cbb1f1e4a36543cba6cc8e0db7c9a391/FLAG362efdff4 [2021-10-11 00:21:55,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/data/8b8422d1d/cbb1f1e4a36543cba6cc8e0db7c9a391 [2021-10-11 00:21:55,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:21:55,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:21:55,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:55,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:21:55,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:21:55,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:55" (1/1) ... [2021-10-11 00:21:55,875 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f3b2864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:55, skipping insertion in model container [2021-10-11 00:21:55,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:21:55" (1/1) ... [2021-10-11 00:21:55,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:21:55,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:21:56,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:56,026 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:21:56,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:21:56,075 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:21:56,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56 WrapperNode [2021-10-11 00:21:56,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:21:56,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:56,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:21:56,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:21:56,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:21:56,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:21:56,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:21:56,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:21:56,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,116 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,116 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... [2021-10-11 00:21:56,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:21:56,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:21:56,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:21:56,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:21:56,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:21:56,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:21:56,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:21:56,332 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 00:21:56,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:56 BoogieIcfgContainer [2021-10-11 00:21:56,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:21:56,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:21:56,335 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:21:56,338 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:21:56,339 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:56,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:21:55" (1/3) ... [2021-10-11 00:21:56,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47192474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:56, skipping insertion in model container [2021-10-11 00:21:56,341 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:56,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:21:56" (2/3) ... [2021-10-11 00:21:56,342 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47192474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:21:56, skipping insertion in model container [2021-10-11 00:21:56,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:21:56,342 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:56" (3/3) ... [2021-10-11 00:21:56,345 INFO L389 chiAutomizerObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c [2021-10-11 00:21:56,413 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:21:56,413 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:21:56,413 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:21:56,414 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:21:56,414 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:21:56,414 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:21:56,414 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:21:56,414 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:21:56,426 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:21:56,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:21:56,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:56,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:56,449 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:21:56,449 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:21:56,449 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:21:56,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2021-10-11 00:21:56,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-11 00:21:56,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:21:56,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:21:56,451 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-11 00:21:56,451 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-11 00:21:56,457 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := 23; 3#L17-2true [2021-10-11 00:21:56,458 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~x~0 >= main_~y~0);main_~x~0 := main_~x~0 - 1; 3#L17-2true [2021-10-11 00:21:56,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,463 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-11 00:21:56,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864439618] [2021-10-11 00:21:56,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,536 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,541 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,554 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-11 00:21:56,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386519065] [2021-10-11 00:21:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,565 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,571 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:56,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-11 00:21:56,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:21:56,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51550663] [2021-10-11 00:21:56,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:21:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,582 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:21:56,587 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:21:56,588 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:21:56,638 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:56,638 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:56,639 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:56,639 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:56,639 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:21:56,639 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:56,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:56,640 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c_Iteration1_Loop [2021-10-11 00:21:56,640 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:56,640 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:56,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:56,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:56,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:56,788 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:56,788 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:56,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:56,831 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:56,851 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:56,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:21:56,894 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:21:56,895 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: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:56,917 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:21:56,918 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:56,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:21:56,945 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,131 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:21:57,133 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:21:57,133 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:21:57,133 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:21:57,134 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:21:57,134 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:21:57,134 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,134 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:21:57,134 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:21:57,134 INFO L133 ssoRankerPreferences]: Filename of dumped script: HeizmannHoenickeLeikePodelski-ATVA2013-Fig4.c_Iteration1_Loop [2021-10-11 00:21:57,134 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:21:57,134 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:21:57,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:57,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:57,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:21:57,212 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:21:57,216 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:21:57,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:57,225 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,225 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,226 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,226 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:57,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:57,254 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:57,288 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,289 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,295 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-11 00:21:57,295 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-11 00:21:57,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,337 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:21:57,339 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:21:57,339 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:21:57,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:21:57,339 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:21:57,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:21:57,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:21:57,341 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:21:57,373 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:21:57,378 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:21:57,379 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afccb7f3-c22e-41c4-b7ec-c4b49f991ac3/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:21:57,385 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:21:57,385 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:21:57,385 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:21:57,385 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2021-10-11 00:21:57,405 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:21:57,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:21:57,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:21:57,456 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:21:57,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:21:57,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:21:57,472 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 [2021-10-11 00:21:57,474 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2021-10-11 00:21:57,505 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2021-10-11 00:21:57,506 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 [2021-10-11 00:21:57,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-10-11 00:21:57,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-11 00:21:57,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-11 00:21:57,509 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,509 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-11 00:21:57,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,510 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-11 00:21:57,510 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:21:57,511 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-11 00:21:57,513 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:57,515 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-11 00:21:57,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:21:57,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:21:57,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:21:57,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:21:57,517 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:57,517 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:57,517 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:21:57,517 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:21:57,518 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:21:57,518 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:21:57,518 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:21:57,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:21:57 BoogieIcfgContainer [2021-10-11 00:21:57,523 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:21:57,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:21:57,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:21:57,524 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:21:57,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:21:56" (3/4) ... [2021-10-11 00:21:57,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:21:57,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:21:57,529 INFO L168 Benchmark]: Toolchain (without parser) took 1660.44 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 80.6 MB in the beginning and 91.0 MB in the end (delta: -10.4 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:57,530 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:57,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.12 ms. Allocated memory is still 115.3 MB. Free memory was 80.4 MB in the beginning and 90.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:57,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.49 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:57,532 INFO L168 Benchmark]: Boogie Preprocessor took 14.51 ms. Allocated memory is still 115.3 MB. Free memory was 89.4 MB in the beginning and 88.7 MB in the end (delta: 718.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:57,533 INFO L168 Benchmark]: RCFGBuilder took 210.83 ms. Allocated memory is still 115.3 MB. Free memory was 88.3 MB in the beginning and 80.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:57,533 INFO L168 Benchmark]: BuchiAutomizer took 1188.77 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 80.3 MB in the beginning and 91.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:21:57,534 INFO L168 Benchmark]: Witness Printer took 3.79 ms. Allocated memory is still 138.4 MB. Free memory was 91.5 MB in the beginning and 91.0 MB in the end (delta: 475.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:21:57,538 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 207.12 ms. Allocated memory is still 115.3 MB. Free memory was 80.4 MB in the beginning and 90.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.49 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.51 ms. Allocated memory is still 115.3 MB. Free memory was 89.4 MB in the beginning and 88.7 MB in the end (delta: 718.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 210.83 ms. Allocated memory is still 115.3 MB. Free memory was 88.3 MB in the beginning and 80.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1188.77 ms. Allocated memory was 115.3 MB in the beginning and 138.4 MB in the end (delta: 23.1 MB). Free memory was 80.3 MB in the beginning and 91.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.79 ms. Allocated memory is still 138.4 MB. Free memory was 91.5 MB in the beginning and 91.0 MB in the end (delta: 475.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + -2 * y + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...