./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/trex02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex02-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 79d989fa07a5ca9fba756b11f85a2a447254705c .......................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:27:24,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:27:24,553 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:27:24,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:27:24,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:27:24,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:27:24,607 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:27:24,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:27:24,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:27:24,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:27:24,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:27:24,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:27:24,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:27:24,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:27:24,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:27:24,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:27:24,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:27:24,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:27:24,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:27:24,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:27:24,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:27:24,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:27:24,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:27:24,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:27:24,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:27:24,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:27:24,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:27:24,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:27:24,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:27:24,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:27:24,643 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:27:24,644 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:27:24,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:27:24,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:27:24,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:27:24,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:27:24,648 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:27:24,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:27:24,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:27:24,650 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:27:24,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:27:24,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:27:24,700 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:27:24,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:27:24,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:27:24,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:27:24,709 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:27:24,709 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:27:24,709 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:27:24,710 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:27:24,710 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:27:24,710 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:27:24,711 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:27:24,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:27:24,712 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:27:24,712 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:27:24,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:27:24,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:27:24,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:27:24,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:27:24,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:27:24,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:27:24,714 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:27:24,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:27:24,714 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:27:24,714 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:27:24,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:27:24,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:27:24,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:27:24,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:27:24,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:27:24,717 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:27:24,719 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:27:24,719 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_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79d989fa07a5ca9fba756b11f85a2a447254705c [2021-10-11 00:27:24,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:27:25,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:27:25,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:27:25,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:27:25,015 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:27:25,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/loops/trex02-2.c [2021-10-11 00:27:25,089 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/data/cfe403d91/a1c0fc772f2347eda3f14fa8693b0909/FLAG164951708 [2021-10-11 00:27:25,643 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:27:25,643 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/sv-benchmarks/c/loops/trex02-2.c [2021-10-11 00:27:25,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/data/cfe403d91/a1c0fc772f2347eda3f14fa8693b0909/FLAG164951708 [2021-10-11 00:27:26,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/data/cfe403d91/a1c0fc772f2347eda3f14fa8693b0909 [2021-10-11 00:27:26,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:27:26,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:27:26,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:26,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:27:26,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:27:26,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f6eac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26, skipping insertion in model container [2021-10-11 00:27:26,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,043 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:27:26,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:27:26,266 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/sv-benchmarks/c/loops/trex02-2.c[320,333] [2021-10-11 00:27:26,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:26,320 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:27:26,335 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/sv-benchmarks/c/loops/trex02-2.c[320,333] [2021-10-11 00:27:26,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:27:26,355 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:27:26,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26 WrapperNode [2021-10-11 00:27:26,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:27:26,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:26,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:27:26,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:27:26,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:27:26,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:27:26,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:27:26,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:27:26,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... [2021-10-11 00:27:26,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:27:26,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:27:26,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:27:26,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:27:26,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:27:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:27:26,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:27:26,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:27:26,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:27:26,774 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-11 00:27:26,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:26 BoogieIcfgContainer [2021-10-11 00:27:26,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:27:26,778 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:27:26,778 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:27:26,782 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:27:26,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:26,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:27:26" (1/3) ... [2021-10-11 00:27:26,785 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a43dd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:27:26, skipping insertion in model container [2021-10-11 00:27:26,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:26,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:26" (2/3) ... [2021-10-11 00:27:26,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a43dd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:27:26, skipping insertion in model container [2021-10-11 00:27:26,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:27:26,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:26" (3/3) ... [2021-10-11 00:27:26,788 INFO L389 chiAutomizerObserver]: Analyzing ICFG trex02-2.c [2021-10-11 00:27:26,863 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:27:26,863 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:27:26,863 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:27:26,864 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:27:26,864 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:27:26,864 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:27:26,864 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:27:26,864 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:27:26,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2021-10-11 00:27:26,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:27:26,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:27:26,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:27:26,941 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:27:26,941 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:27:26,941 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:27:26,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2021-10-11 00:27:26,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-10-11 00:27:26,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:27:26,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:27:26,948 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-10-11 00:27:26,948 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-10-11 00:27:26,956 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 3#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_~c~0;~x~0 := main_#t~nondet8;havoc main_#t~nondet8; 6#L17-1true [2021-10-11 00:27:26,957 INFO L796 eck$LassoCheckResult]: Loop: 6#L17-1true assume !!(~x~0 > 0);main_~c~0 := main_#t~nondet9;havoc main_#t~nondet9; 11#L25true assume !(0 != main_~c~0 % 256);havoc foo_#t~post7;foo_#t~post7 := ~x~0;~x~0 := foo_#t~post7 - 1;havoc foo_#t~post7; 6#L17-1true [2021-10-11 00:27:26,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:26,964 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-10-11 00:27:26,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:26,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773572586] [2021-10-11 00:27:26,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,144 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:27,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2021-10-11 00:27:27,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:27,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681395510] [2021-10-11 00:27:27,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,171 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:27,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:27,175 INFO L82 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2021-10-11 00:27:27,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:27:27,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180049579] [2021-10-11 00:27:27,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:27:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,207 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:27:27,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:27:27,233 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:27:27,326 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:27:27,327 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:27:27,327 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:27:27,327 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:27:27,327 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:27:27,327 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,328 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:27:27,328 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:27:27,328 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2021-10-11 00:27:27,328 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:27:27,329 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:27:27,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,556 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:27:27,557 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:27:27,571 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:27:27,571 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:27:27,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Honda state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:27:27,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:27:27,643 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,661 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:27:27,661 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post7=0} Honda state: {ULTIMATE.start_foo_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,684 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:27:27,684 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,720 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:27:27,720 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-10-11 00:27:27,750 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:27:27,751 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:27:27,752 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:27:27,752 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:27:27,752 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:27:27,752 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:27:27,752 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,752 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:27:27,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:27:27,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-2.c_Iteration1_Loop [2021-10-11 00:27:27,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:27:27,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:27:27,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:27:27,844 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:27:27,849 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:27:27,885 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:27:27,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:27,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:27:27,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:27,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:27,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:27,904 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:27:27,904 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:27,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:27:27,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:27:27,980 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:27,980 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:27:27,980 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:27,980 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:27,980 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:27,981 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:27:27,982 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:27:27,990 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:28,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2021-10-11 00:27:28,033 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:27:28,033 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:27:28,033 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:27:28,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:27:28,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:27:28,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:27:28,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:27:28,060 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:27:28,064 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:27:28,064 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6481e34-c2d2-42e2-9c61-247266ffb5d7/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:27:28,068 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:27:28,068 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:27:28,069 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:27:28,069 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-10-11 00:27:28,091 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:27:28,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:27:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:28,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 00:27:28,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:27:28,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:27:28,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:27:28,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:27:28,260 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-10-11 00:27:28,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2021-10-11 00:27:28,313 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 24 states and 31 transitions. Complement of second has 7 states. [2021-10-11 00:27:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:27:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-11 00:27:28,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-10-11 00:27:28,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-10-11 00:27:28,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:28,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2021-10-11 00:27:28,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:28,320 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2021-10-11 00:27:28,320 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:27:28,321 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-10-11 00:27:28,325 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:27:28,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-10-11 00:27:28,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:27:28,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:27:28,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:27:28,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:27:28,330 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:28,330 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:28,330 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:27:28,331 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:27:28,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:27:28,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:27:28,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:27:28,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:27:28 BoogieIcfgContainer [2021-10-11 00:27:28,336 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:27:28,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:27:28,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:27:28,336 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:27:28,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:26" (3/4) ... [2021-10-11 00:27:28,340 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:27:28,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:27:28,342 INFO L168 Benchmark]: Toolchain (without parser) took 2322.58 ms. Allocated memory is still 125.8 MB. Free memory was 94.1 MB in the beginning and 58.7 MB in the end (delta: 35.4 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:28,343 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 35.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:28,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.99 ms. Allocated memory is still 125.8 MB. Free memory was 94.1 MB in the beginning and 101.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:28,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 100.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:28,345 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 125.8 MB. Free memory was 100.0 MB in the beginning and 98.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:28,346 INFO L168 Benchmark]: RCFGBuilder took 356.08 ms. Allocated memory is still 125.8 MB. Free memory was 98.9 MB in the beginning and 87.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:28,346 INFO L168 Benchmark]: BuchiAutomizer took 1558.05 ms. Allocated memory is still 125.8 MB. Free memory was 87.8 MB in the beginning and 59.3 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:27:28,347 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 125.8 MB. Free memory was 59.3 MB in the beginning and 58.7 MB in the end (delta: 586.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:27:28,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 35.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 331.99 ms. Allocated memory is still 125.8 MB. Free memory was 94.1 MB in the beginning and 101.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.57 ms. Allocated memory is still 125.8 MB. Free memory was 101.1 MB in the beginning and 100.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 125.8 MB. Free memory was 100.0 MB in the beginning and 98.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 356.08 ms. Allocated memory is still 125.8 MB. Free memory was 98.9 MB in the beginning and 87.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1558.05 ms. Allocated memory is still 125.8 MB. Free memory was 87.8 MB in the beginning and 59.3 MB in the end (delta: 28.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 125.8 MB. Free memory was 59.3 MB in the beginning and 58.7 MB in the end (delta: 586.9 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 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: 6 SDtfs, 7 SDslu, 8 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax100 hnf100 lsp55 ukn100 mio100 lsp100 div469 bol100 ite100 ukn100 eq151 hnf43 smp90 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 64ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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! Received shutdown request...