./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Copenhagen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Copenhagen.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU --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 97f3ae71d7e55617c3dc3c40b5dfbc58b84ebe43530264553a18780748bc766c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:08:27,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:08:27,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:08:27,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:08:27,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:08:27,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:08:27,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:08:27,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:08:27,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:08:27,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:08:27,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:08:27,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:08:27,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:08:27,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:08:27,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:08:27,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:08:27,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:08:27,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:08:27,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:08:27,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:08:27,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:08:27,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:08:27,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:08:27,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:08:27,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:08:27,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:08:27,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:08:27,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:08:27,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:08:27,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:08:27,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:08:27,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:08:27,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:08:27,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:08:27,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:08:27,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:08:27,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:08:27,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:08:27,439 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:08:27,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:08:27,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:08:27,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-02 23:08:27,489 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:08:27,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:08:27,490 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:08:27,490 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:08:27,492 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:08:27,493 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:08:27,493 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:08:27,493 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:08:27,493 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:08:27,493 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:08:27,494 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:08:27,495 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:08:27,495 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:08:27,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:08:27,495 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:08:27,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:08:27,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:08:27,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:08:27,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:08:27,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:08:27,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:08:27,497 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:08:27,497 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:08:27,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:08:27,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:08:27,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:08:27,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:08:27,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:08:27,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:08:27,500 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:08:27,500 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_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97f3ae71d7e55617c3dc3c40b5dfbc58b84ebe43530264553a18780748bc766c [2021-11-02 23:08:27,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:08:27,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:08:27,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:08:27,861 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:08:27,861 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:08:27,862 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-crafted/Copenhagen.c [2021-11-02 23:08:27,923 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/data/97f74d33e/904d168e7f7343438027ee777af35190/FLAG262a596ab [2021-11-02 23:08:28,360 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:08:28,361 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/sv-benchmarks/c/termination-crafted/Copenhagen.c [2021-11-02 23:08:28,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/data/97f74d33e/904d168e7f7343438027ee777af35190/FLAG262a596ab [2021-11-02 23:08:28,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/data/97f74d33e/904d168e7f7343438027ee777af35190 [2021-11-02 23:08:28,759 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:08:28,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:08:28,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:28,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:08:28,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:08:28,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:28" (1/1) ... [2021-11-02 23:08:28,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31bd38b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:28, skipping insertion in model container [2021-11-02 23:08:28,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:08:28" (1/1) ... [2021-11-02 23:08:28,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:08:28,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:08:28,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:28,999 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:08:29,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:08:29,024 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:08:29,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29 WrapperNode [2021-11-02 23:08:29,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:08:29,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:29,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:08:29,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:08:29,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:08:29,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:08:29,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:08:29,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:08:29,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,076 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:08:29,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:08:29,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:08:29,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:08:29,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (1/1) ... [2021-11-02 23:08:29,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:29,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:29,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:29,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:08:29,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:08:29,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:08:29,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:08:29,324 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 23:08:29,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:29 BoogieIcfgContainer [2021-11-02 23:08:29,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:08:29,330 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:08:29,330 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:08:29,334 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:08:29,334 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:29,335 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:08:28" (1/3) ... [2021-11-02 23:08:29,337 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30382c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:08:29, skipping insertion in model container [2021-11-02 23:08:29,337 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:29,337 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:08:29" (2/3) ... [2021-11-02 23:08:29,338 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30382c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:08:29, skipping insertion in model container [2021-11-02 23:08:29,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:08:29,338 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:29" (3/3) ... [2021-11-02 23:08:29,340 INFO L389 chiAutomizerObserver]: Analyzing ICFG Copenhagen.c [2021-11-02 23:08:29,404 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:08:29,405 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:08:29,405 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:08:29,405 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:08:29,405 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:08:29,405 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:08:29,405 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:08:29,406 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:08:29,419 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) [2021-11-02 23:08:29,439 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 23:08:29,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:08:29,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:08:29,444 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-02 23:08:29,444 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 23:08:29,445 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:08:29,445 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) [2021-11-02 23:08:29,446 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-11-02 23:08:29,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:08:29,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:08:29,447 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1] [2021-11-02 23:08:29,447 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-11-02 23:08:29,453 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~oldx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~oldx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L16-2true [2021-11-02 23:08:29,454 INFO L793 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0 >= 0 && main_~y~0 >= 0);main_~oldx~0 := main_~x~0;main_~x~0 := main_~y~0 - 1;main_~y~0 := main_~oldx~0 - 1; 7#L16-2true [2021-11-02 23:08:29,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:29,462 INFO L85 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2021-11-02 23:08:29,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:29,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170613559] [2021-11-02 23:08:29,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:29,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,549 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:29,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,573 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:29,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:29,578 INFO L85 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2021-11-02 23:08:29,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:29,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702114300] [2021-11-02 23:08:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:29,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,606 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:29,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:29,622 INFO L85 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2021-11-02 23:08:29,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:29,623 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320088377] [2021-11-02 23:08:29,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:29,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,644 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:08:29,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:08:29,659 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:08:29,775 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:29,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:29,776 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:29,776 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:29,776 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:08:29,776 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:29,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:29,777 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:29,777 INFO L133 ssoRankerPreferences]: Filename of dumped script: Copenhagen.c_Iteration1_Loop [2021-11-02 23:08:29,777 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:29,777 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:29,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:29,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:29,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:29,923 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:29,932 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:08:29,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:29,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:29,937 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:29,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:08:29,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:29,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:08:30,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:30,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:30,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:30,010 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:30,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:08:30,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:08:30,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:08:30,600 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:08:30,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:30,608 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:08:30,608 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:08:30,608 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:08:30,608 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:08:30,609 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:08:30,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:30,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:08:30,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:08:30,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: Copenhagen.c_Iteration1_Loop [2021-11-02 23:08:30,609 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:08:30,609 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:08:30,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:30,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:30,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:08:30,721 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:08:30,726 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:08:30,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:30,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:30,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:30,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:08:30,739 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-02 23:08:30,748 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:08:30,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:08:30,749 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:08:30,749 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:08:30,749 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:08:30,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:08:30,754 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:08:30,768 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:08:30,775 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-11-02 23:08:30,775 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-11-02 23:08:30,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:08:30,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:30,779 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:08:30,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:08:30,785 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:08:30,785 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:08:30,786 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2021-11-02 23:08:30,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:08:30,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:30,815 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:08:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:30,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:08:30,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:30,868 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 23:08:30,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:30,884 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2021-11-02 23:08:30,886 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) [2021-11-02 23:08:30,918 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. [2021-11-02 23:08:30,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-02 23:08:30,920 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) [2021-11-02 23:08:30,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2021-11-02 23:08:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2021-11-02 23:08:30,922 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:30,922 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2021-11-02 23:08:30,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:30,923 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2021-11-02 23:08:30,923 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:08:30,924 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2021-11-02 23:08:30,926 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:08:30,929 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2021-11-02 23:08:30,929 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:08:30,930 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:08:30,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:08:30,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:08:30,931 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:30,931 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:30,931 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:08:30,931 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:08:30,931 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:08:30,931 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:08:30,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:08:30,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:08:30 BoogieIcfgContainer [2021-11-02 23:08:30,937 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:08:30,938 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:08:30,938 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:08:30,938 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:08:30,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:08:29" (3/4) ... [2021-11-02 23:08:30,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:08:30,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:08:30,943 INFO L168 Benchmark]: Toolchain (without parser) took 2180.29 ms. Allocated memory is still 123.7 MB. Free memory was 83.3 MB in the beginning and 51.5 MB in the end (delta: 31.8 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:30,944 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 123.7 MB. Free memory is still 99.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:30,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.55 ms. Allocated memory is still 123.7 MB. Free memory was 83.1 MB in the beginning and 98.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:30,945 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 97.5 MB in the end (delta: 996.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:30,946 INFO L168 Benchmark]: Boogie Preprocessor took 17.58 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 96.5 MB in the end (delta: 955.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:30,947 INFO L168 Benchmark]: RCFGBuilder took 247.62 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 88.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:30,947 INFO L168 Benchmark]: BuchiAutomizer took 1607.47 ms. Allocated memory is still 123.7 MB. Free memory was 88.7 MB in the beginning and 51.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-11-02 23:08:30,948 INFO L168 Benchmark]: Witness Printer took 3.85 ms. Allocated memory is still 123.7 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:08:30,951 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 123.7 MB. Free memory is still 99.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.55 ms. Allocated memory is still 123.7 MB. Free memory was 83.1 MB in the beginning and 98.5 MB in the end (delta: -15.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.51 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 97.5 MB in the end (delta: 996.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.58 ms. Allocated memory is still 123.7 MB. Free memory was 97.5 MB in the beginning and 96.5 MB in the end (delta: 955.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 247.62 ms. Allocated memory is still 123.7 MB. Free memory was 96.5 MB in the beginning and 88.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1607.47 ms. Allocated memory is still 123.7 MB. Free memory was 88.7 MB in the beginning and 51.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.85 ms. Allocated memory is still 123.7 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y + x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf105 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 58ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:08:30,996 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:31,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eda8335c-f9fa-4f1b-bef6-90b0aacef3fc/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE