./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be --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 cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:29:20,511 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:29:20,515 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:29:20,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:29:20,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:29:20,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:29:20,586 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:29:20,590 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:29:20,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:29:20,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:29:20,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:29:20,604 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:29:20,605 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:29:20,608 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:29:20,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:29:20,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:29:20,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:29:20,619 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:29:20,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:29:20,631 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:29:20,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:29:20,636 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:29:20,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:29:20,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:29:20,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:29:20,644 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:29:20,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:29:20,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:29:20,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:29:20,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:29:20,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:29:20,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:29:20,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:29:20,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:29:20,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:29:20,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:29:20,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:29:20,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:29:20,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:29:20,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:29:20,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:29:20,656 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-21 19:29:20,682 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:29:20,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:29:20,683 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:29:20,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:29:20,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:29:20,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:29:20,686 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:29:20,686 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:29:20,686 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:29:20,686 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:29:20,687 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:29:20,687 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:29:20,687 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:29:20,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:29:20,688 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:29:20,688 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:29:20,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:29:20,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:29:20,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:29:20,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:29:20,689 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:29:20,690 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:29:20,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:29:20,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:29:20,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:29:20,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:29:20,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:29:20,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:29:20,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:29:20,693 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:29:20,693 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_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf5951cf7c939342bb5d014c8a7a12e4f95042e50c8d2f477b21d0a3234d49fe [2021-10-21 19:29:20,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:29:20,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:29:20,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:29:20,976 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:29:20,977 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:29:20,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-21 19:29:21,054 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/data/db92c2260/0b649f68ca3a4abebae7011194279ad5/FLAGbe265f552 [2021-10-21 19:29:21,479 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:29:21,480 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-21 19:29:21,486 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/data/db92c2260/0b649f68ca3a4abebae7011194279ad5/FLAGbe265f552 [2021-10-21 19:29:21,862 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/data/db92c2260/0b649f68ca3a4abebae7011194279ad5 [2021-10-21 19:29:21,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:29:21,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:29:21,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:29:21,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:29:21,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:29:21,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:21" (1/1) ... [2021-10-21 19:29:21,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25701e53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:21, skipping insertion in model container [2021-10-21 19:29:21,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:21" (1/1) ... [2021-10-21 19:29:21,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:29:21,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:29:22,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:29:22,133 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:29:22,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:29:22,174 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:29:22,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22 WrapperNode [2021-10-21 19:29:22,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:29:22,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:29:22,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:29:22,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:29:22,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:29:22,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:29:22,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:29:22,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:29:22,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:29:22,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:29:22,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:29:22,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:29:22,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (1/1) ... [2021-10-21 19:29:22,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:22,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:22,262 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:22,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:29:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:29:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:29:22,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:29:22,437 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-21 19:29:22,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22 BoogieIcfgContainer [2021-10-21 19:29:22,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:29:22,440 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:29:22,440 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:29:22,443 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:29:22,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:29:22,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:29:21" (1/3) ... [2021-10-21 19:29:22,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62ee03f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:29:22, skipping insertion in model container [2021-10-21 19:29:22,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:29:22,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:22" (2/3) ... [2021-10-21 19:29:22,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62ee03f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:29:22, skipping insertion in model container [2021-10-21 19:29:22,446 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:29:22,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22" (3/3) ... [2021-10-21 19:29:22,447 INFO L389 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c [2021-10-21 19:29:22,493 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:29:22,493 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:29:22,494 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:29:22,494 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:29:22,494 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:29:22,494 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:29:22,494 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:29:22,494 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:29:22,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-10-21 19:29:22,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:29:22,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:29:22,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:29:22,527 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:29:22,528 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:29:22,528 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:29:22,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) [2021-10-21 19:29:22,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-21 19:29:22,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:29:22,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:29:22,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-21 19:29:22,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-21 19:29:22,536 INFO L791 eck$LassoCheckResult]: Stem: 5#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 := 1; 6#L18-2true [2021-10-21 19:29:22,537 INFO L793 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~y~0 := 1 + main_~y~0; 6#L18-2true [2021-10-21 19:29:22,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:22,543 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-21 19:29:22,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:22,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852214389] [2021-10-21 19:29:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:22,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:22,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,625 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:29:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,644 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:29:22,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:22,647 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-21 19:29:22,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:22,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202124412] [2021-10-21 19:29:22,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:22,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,660 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:29:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,666 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:29:22,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:22,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-21 19:29:22,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:29:22,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139165408] [2021-10-21 19:29:22,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:29:22,669 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:29:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,676 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:29:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:29:22,683 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:29:22,750 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:29:22,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:29:22,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:29:22,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:29:22,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-21 19:29:22,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:22,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:29:22,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:29:22,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2021-10-21 19:29:22,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:29:22,752 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:29:22,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:22,781 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:22,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:22,892 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:29:22,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-21 19:29:22,895 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:22,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:22,921 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:22,926 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:29:22,926 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:29:22,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-21 19:29:22,952 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:29:22,952 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: [] [2021-10-21 19:29:22,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-10-21 19:29:22,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:22,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:22,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:22,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-21 19:29:23,013 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:29:23,014 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:29:23,040 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-21 19:29:23,040 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: [] [2021-10-21 19:29:23,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,076 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-21 19:29:23,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-21 19:29:23,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:29:23,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-21 19:29:23,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-21 19:29:23,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-21 19:29:23,303 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-21 19:29:23,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2021-10-21 19:29:23,308 INFO L210 LassoAnalysis]: Preferences: [2021-10-21 19:29:23,308 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-21 19:29:23,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-21 19:29:23,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-21 19:29:23,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-21 19:29:23,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-21 19:29:23,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-21 19:29:23,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2021-10-21 19:29:23,309 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-21 19:29:23,310 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-21 19:29:23,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:23,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:23,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-21 19:29:23,407 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-21 19:29:23,412 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-21 19:29:23,413 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,414 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,417 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 [2021-10-21 19:29:23,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,427 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,427 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:29:23,433 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:29:23,433 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:29:23,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-10-21 19:29:23,440 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:29:23,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,481 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,482 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,497 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 [2021-10-21 19:29:23,507 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,507 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,507 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,507 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:29:23,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-10-21 19:29:23,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-10-21 19:29:23,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-10-21 19:29:23,529 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:29:23,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,553 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,555 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-10-21 19:29:23,557 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 [2021-10-21 19:29:23,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,566 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:29:23,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-21 19:29:23,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-21 19:29:23,569 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:29:23,583 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:29:23,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,617 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-10-21 19:29:23,617 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,618 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,629 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 [2021-10-21 19:29:23,638 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,638 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,638 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,639 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:29:23,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-10-21 19:29:23,648 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:29:23,649 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:29:23,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:29:23,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,706 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,707 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,715 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 [2021-10-21 19:29:23,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-10-21 19:29:23,723 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,723 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,723 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,723 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:29:23,728 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-10-21 19:29:23,728 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-10-21 19:29:23,756 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-10-21 19:29:23,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,789 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,790 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,792 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 [2021-10-21 19:29:23,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-10-21 19:29:23,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-21 19:29:23,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-21 19:29:23,802 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-21 19:29:23,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-21 19:29:23,802 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-10-21 19:29:23,808 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-10-21 19:29:23,808 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-21 19:29:23,824 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-21 19:29:23,834 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-10-21 19:29:23,834 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-21 19:29:23,835 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:29:23,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:29:23,841 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:29:23,857 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-21 19:29:23,857 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-21 19:29:23,857 INFO L513 LassoAnalysis]: Proved termination. [2021-10-21 19:29:23,858 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-10-21 19:29:23,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-10-21 19:29:23,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:23,897 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-21 19:29:23,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:29:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:23,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 19:29:23,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:29:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:29:23,946 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:29:23,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:29:23,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:29:23,962 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 [2021-10-21 19:29:23,963 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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) Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-10-21 19:29:23,996 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 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). Second operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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 15 states and 18 transitions. Complement of second has 5 states. [2021-10-21 19:29:23,996 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 [2021-10-21 19:29:23,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.0) internal successors, (2), 1 states have internal predecessors, (2), 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) [2021-10-21 19:29:23,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-21 19:29:24,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-21 19:29:24,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:29:24,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-21 19:29:24,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:29:24,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-21 19:29:24,001 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-21 19:29:24,002 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-21 19:29:24,004 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:29:24,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-21 19:29:24,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-21 19:29:24,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-21 19:29:24,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-21 19:29:24,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:29:24,009 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:29:24,009 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:29:24,009 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:29:24,009 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:29:24,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:29:24,010 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-21 19:29:24,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-21 19:29:24,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:29:24 BoogieIcfgContainer [2021-10-21 19:29:24,016 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:29:24,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:29:24,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:29:24,017 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:29:24,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:22" (3/4) ... [2021-10-21 19:29:24,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 19:29:24,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:29:24,022 INFO L168 Benchmark]: Toolchain (without parser) took 2154.60 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 63.1 MB in the end (delta: -9.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:24,023 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 69.1 MB in the beginning and 69.0 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:29:24,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.07 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 66.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:24,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:29:24,025 INFO L168 Benchmark]: Boogie Preprocessor took 16.68 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 64.2 MB in the end (delta: 920.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:24,025 INFO L168 Benchmark]: RCFGBuilder took 215.32 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 56.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:24,026 INFO L168 Benchmark]: BuchiAutomizer took 1575.75 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 63.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:29:24,027 INFO L168 Benchmark]: Witness Printer took 3.91 ms. Allocated memory is still 107.0 MB. Free memory is still 63.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:29:24,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 69.1 MB in the beginning and 69.0 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 307.07 ms. Allocated memory is still 88.1 MB. Free memory was 53.0 MB in the beginning and 66.3 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.98 ms. Allocated memory is still 88.1 MB. Free memory was 66.3 MB in the beginning and 65.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.68 ms. Allocated memory is still 88.1 MB. Free memory was 65.1 MB in the beginning and 64.2 MB in the end (delta: 920.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 215.32 ms. Allocated memory is still 88.1 MB. Free memory was 64.2 MB in the beginning and 56.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1575.75 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 63.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.91 ms. Allocated memory is still 107.0 MB. Free memory is still 63.1 MB. 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 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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, 5.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-21 19:29:24,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:29:24,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea72917f-f10f-4dfa-9dbf-8cf3e21193aa/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...