./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD --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 cec1cb80cc444268f4d15edbfcfbc42fd6cec25bcc627308222b3bf585ff5fd0 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:32:28,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:32:28,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:32:28,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:32:28,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:32:28,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:32:28,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:32:28,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:32:28,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:32:28,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:32:28,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:32:28,562 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:32:28,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:32:28,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:32:28,569 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:32:28,579 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:32:28,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:32:28,583 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:32:28,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:32:28,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:32:28,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:32:28,604 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:32:28,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:32:28,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:32:28,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:32:28,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:32:28,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:32:28,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:32:28,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:32:28,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:32:28,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:32:28,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:32:28,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:32:28,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:32:28,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:32:28,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:32:28,636 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:32:28,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:32:28,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:32:28,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:32:28,639 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:32:28,640 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-10-28 23:32:28,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:32:28,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:32:28,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:32:28,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:32:28,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:32:28,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:32:28,703 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:32:28,703 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:32:28,703 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:32:28,703 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:32:28,705 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:32:28,705 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:32:28,706 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:32:28,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:32:28,706 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:32:28,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:32:28,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:32:28,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:32:28,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:32:28,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:32:28,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:32:28,708 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:32:28,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:32:28,709 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:32:28,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:32:28,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:32:28,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:32:28,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:32:28,710 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:32:28,712 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:32:28,712 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_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cec1cb80cc444268f4d15edbfcfbc42fd6cec25bcc627308222b3bf585ff5fd0 [2021-10-28 23:32:29,025 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:32:29,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:32:29,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:32:29,054 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:32:29,055 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:32:29,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/termination-restricted-15/b.06.c [2021-10-28 23:32:29,119 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/data/49d080146/1d002c728a2849cb88c33c5bafdba419/FLAG3a62b9b95 [2021-10-28 23:32:29,713 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:32:29,714 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/sv-benchmarks/c/termination-restricted-15/b.06.c [2021-10-28 23:32:29,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/data/49d080146/1d002c728a2849cb88c33c5bafdba419/FLAG3a62b9b95 [2021-10-28 23:32:30,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/data/49d080146/1d002c728a2849cb88c33c5bafdba419 [2021-10-28 23:32:30,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:32:30,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:32:30,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:32:30,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:32:30,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:32:30,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d3225cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30, skipping insertion in model container [2021-10-28 23:32:30,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:32:30,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:32:30,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:32:30,293 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:32:30,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:32:30,329 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:32:30,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30 WrapperNode [2021-10-28 23:32:30,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:32:30,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:32:30,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:32:30,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:32:30,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:32:30,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:32:30,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:32:30,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:32:30,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:32:30,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:32:30,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:32:30,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:32:30,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (1/1) ... [2021-10-28 23:32:30,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:30,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:30,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:30,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:32:30,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:32:30,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:32:30,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:32:30,617 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-28 23:32:30,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:30 BoogieIcfgContainer [2021-10-28 23:32:30,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:32:30,621 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:32:30,621 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:32:30,624 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:32:30,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:30,625 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:32:30" (1/3) ... [2021-10-28 23:32:30,626 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d2035ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:32:30, skipping insertion in model container [2021-10-28 23:32:30,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:30,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:32:30" (2/3) ... [2021-10-28 23:32:30,627 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d2035ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:32:30, skipping insertion in model container [2021-10-28 23:32:30,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:32:30,627 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:30" (3/3) ... [2021-10-28 23:32:30,629 INFO L389 chiAutomizerObserver]: Analyzing ICFG b.06.c [2021-10-28 23:32:30,683 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:32:30,683 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:32:30,684 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:32:30,684 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:32:30,684 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:32:30,684 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:32:30,684 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:32:30,685 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:32:30,705 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) [2021-10-28 23:32:30,736 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:32:30,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:30,737 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:30,742 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:32:30,742 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:32:30,743 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:32:30,743 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) [2021-10-28 23:32:30,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-10-28 23:32:30,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:32:30,744 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:32:30,745 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-10-28 23:32:30,745 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-10-28 23:32:30,753 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 7#L11-2true [2021-10-28 23:32:30,754 INFO L793 eck$LassoCheckResult]: Loop: 7#L11-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 7#L11-2true [2021-10-28 23:32:30,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:30,761 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-10-28 23:32:30,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:30,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563073193] [2021-10-28 23:32:30,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:30,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:30,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,849 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:30,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:30,880 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-10-28 23:32:30,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:30,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558659345] [2021-10-28 23:32:30,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:30,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,915 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:30,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:30,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-10-28 23:32:30,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:32:30,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833272348] [2021-10-28 23:32:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:32:30,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:32:30,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:32:30,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:32:30,979 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:32:31,188 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:31,189 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:31,189 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:31,190 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:31,190 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-28 23:32:31,190 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,190 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:31,191 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:31,191 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.06.c_Iteration1_Loop [2021-10-28 23:32:31,191 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:31,192 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:31,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,248 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,375 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:31,375 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-10-28 23:32:31,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:31,390 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:31,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-28 23:32:31,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:31,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-10-28 23:32:31,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:31,459 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:31,462 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:31,469 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-28 23:32:31,469 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-28 23:32:31,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-10-28 23:32:31,535 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-28 23:32:31,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:31,543 INFO L210 LassoAnalysis]: Preferences: [2021-10-28 23:32:31,543 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-28 23:32:31,543 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-28 23:32:31,544 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-28 23:32:31,544 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-28 23:32:31,544 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,544 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-28 23:32:31,544 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-28 23:32:31,544 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.06.c_Iteration1_Loop [2021-10-28 23:32:31,544 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-28 23:32:31,545 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-10-28 23:32:31,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-28 23:32:31,690 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-10-28 23:32:31,696 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-10-28 23:32:31,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:31,703 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:31,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-10-28 23:32:31,709 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 [2021-10-28 23:32:31,721 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-28 23:32:31,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-28 23:32:31,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-28 23:32:31,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-28 23:32:31,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-28 23:32:31,729 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-28 23:32:31,729 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-28 23:32:31,744 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-28 23:32:31,751 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-28 23:32:31,752 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-10-28 23:32:31,753 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:32:31,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:32:31,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:32:31,773 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-28 23:32:31,773 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-28 23:32:31,774 INFO L513 LassoAnalysis]: Proved termination. [2021-10-28 23:32:31,774 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2021-10-28 23:32:31,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-10-28 23:32:31,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:31,824 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-28 23:32:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:32:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:31,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 23:32:31,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:31,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:32:31,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 23:32:31,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:32:31,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:32:31,902 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 [2021-10-28 23:32:31,904 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) [2021-10-28 23:32:31,948 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. [2021-10-28 23:32:31,949 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 [2021-10-28 23:32:31,951 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) [2021-10-28 23:32:31,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-10-28 23:32:31,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-10-28 23:32:31,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:31,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-10-28 23:32:31,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:31,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-10-28 23:32:31,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-28 23:32:31,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-10-28 23:32:31,960 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:32:31,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-10-28 23:32:31,965 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-28 23:32:31,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-28 23:32:31,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-28 23:32:31,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:32:31,966 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:31,969 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:31,969 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 23:32:31,969 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:32:31,969 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-28 23:32:31,970 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-28 23:32:31,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-28 23:32:31,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:32:31 BoogieIcfgContainer [2021-10-28 23:32:31,975 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:32:31,975 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:32:31,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:32:31,976 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:32:31,976 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:32:30" (3/4) ... [2021-10-28 23:32:31,978 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:32:31,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:32:31,980 INFO L168 Benchmark]: Toolchain (without parser) took 1910.11 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 48.1 MB in the beginning and 45.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:31,981 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:31,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.80 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 47.6 MB in the beginning and 93.5 MB in the end (delta: -45.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:31,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.43 ms. Allocated memory is still 115.3 MB. Free memory was 93.5 MB in the beginning and 92.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:31,984 INFO L168 Benchmark]: Boogie Preprocessor took 16.26 ms. Allocated memory is still 115.3 MB. Free memory was 92.3 MB in the beginning and 91.5 MB in the end (delta: 786.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:31,985 INFO L168 Benchmark]: RCFGBuilder took 234.15 ms. Allocated memory is still 115.3 MB. Free memory was 91.5 MB in the beginning and 83.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:31,985 INFO L168 Benchmark]: BuchiAutomizer took 1354.29 ms. Allocated memory is still 115.3 MB. Free memory was 83.5 MB in the beginning and 46.2 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:32:31,986 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 115.3 MB. Free memory was 46.2 MB in the beginning and 45.8 MB in the end (delta: 395.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:32:31,990 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 86.0 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 258.80 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 47.6 MB in the beginning and 93.5 MB in the end (delta: -45.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.43 ms. Allocated memory is still 115.3 MB. Free memory was 93.5 MB in the beginning and 92.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.26 ms. Allocated memory is still 115.3 MB. Free memory was 92.3 MB in the beginning and 91.5 MB in the end (delta: 786.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 234.15 ms. Allocated memory is still 115.3 MB. Free memory was 91.5 MB in the beginning and 83.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1354.29 ms. Allocated memory is still 115.3 MB. Free memory was 83.5 MB in the beginning and 46.2 MB in the end (delta: 37.3 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.28 ms. Allocated memory is still 115.3 MB. Free memory was 46.2 MB in the beginning and 45.8 MB in the end (delta: 395.7 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 y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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: inital23 mio100 ax152 hnf100 lsp28 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 77ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-10-28 23:32:32,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-10-28 23:32:32,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_768c6a40-ad8d-46ba-875e-db355d3aeab9/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...