./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/a.06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/a.06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:55:38,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:55:38,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:55:38,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:55:38,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:55:38,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:55:38,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:55:38,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:55:38,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:55:38,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:55:38,856 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:55:38,856 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:55:38,857 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:55:38,857 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:55:38,858 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:55:38,858 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:55:38,859 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:55:38,860 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:55:38,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:55:38,861 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:55:38,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:55:38,868 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:55:38,868 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:55:38,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:55:38,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:55:38,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:55:38,870 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:55:38,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:55:38,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:55:38,872 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:55:38,872 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:55:38,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:55:38,873 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:55:38,874 INFO L153 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_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 [2023-11-19 07:55:39,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:55:39,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:55:39,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:55:39,176 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:55:39,176 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:55:39,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-restricted-15/a.06.c [2023-11-19 07:55:42,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:55:42,631 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:55:42,632 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/sv-benchmarks/c/termination-restricted-15/a.06.c [2023-11-19 07:55:42,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/data/74910e137/154d2c951e9a400bb7e2f893a90c0696/FLAGbe8810a5a [2023-11-19 07:55:42,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/data/74910e137/154d2c951e9a400bb7e2f893a90c0696 [2023-11-19 07:55:42,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:55:42,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:55:42,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:42,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:55:42,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:55:42,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c80a791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42, skipping insertion in model container [2023-11-19 07:55:42,663 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,685 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:55:42,828 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:42,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:55:42,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:55:42,860 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:55:42,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42 WrapperNode [2023-11-19 07:55:42,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:55:42,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:42,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:55:42,862 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:55:42,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,874 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,892 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-19 07:55:42,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:55:42,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:55:42,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:55:42,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:55:42,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,904 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,913 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,914 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:55:42,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:55:42,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:55:42,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:55:42,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (1/1) ... [2023-11-19 07:55:42,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:42,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:42,951 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:42,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:55:43,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:55:43,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:55:43,079 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:55:43,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:55:43,146 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:55:43,154 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:55:43,154 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 07:55:43,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:43 BoogieIcfgContainer [2023-11-19 07:55:43,158 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:55:43,159 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:55:43,159 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:55:43,163 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:55:43,164 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:43,164 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:55:42" (1/3) ... [2023-11-19 07:55:43,166 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4579c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:43, skipping insertion in model container [2023-11-19 07:55:43,166 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:43,166 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:55:42" (2/3) ... [2023-11-19 07:55:43,167 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4579c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:55:43, skipping insertion in model container [2023-11-19 07:55:43,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:55:43,167 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:43" (3/3) ... [2023-11-19 07:55:43,168 INFO L332 chiAutomizerObserver]: Analyzing ICFG a.06.c [2023-11-19 07:55:43,238 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:55:43,238 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:55:43,239 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:55:43,239 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:55:43,239 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:55:43,239 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:55:43,241 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:55:43,242 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:55:43,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-19 07:55:43,263 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:55:43,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:43,264 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:43,268 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:43,268 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:55:43,268 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:55:43,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-11-19 07:55:43,269 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-11-19 07:55:43,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:55:43,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:55:43,270 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-19 07:55:43,270 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-11-19 07:55:43,276 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_#t~nondet0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;havoc main_#t~nondet2#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 2#L12-2true [2023-11-19 07:55:43,277 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(((((main_~y~0#1 >= 0 && main_~z~0#1 < 2147483647 - main_~y~0#1) || (main_~y~0#1 < 0 && main_~z~0#1 > -2147483648 - main_~y~0#1)) && main_~x~0#1 > main_~y~0#1 + main_~z~0#1) && main_~y~0#1 < 2147483647) && main_~z~0#1 < 2147483647);main_~y~0#1 := 1 + main_~y~0#1;main_~z~0#1 := 1 + main_~z~0#1; 2#L12-2true [2023-11-19 07:55:43,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:43,282 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-19 07:55:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391338363] [2023-11-19 07:55:43,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:43,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,360 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:43,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:43,379 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-11-19 07:55:43,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:43,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545209024] [2023-11-19 07:55:43,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:43,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,408 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:43,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:43,410 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-11-19 07:55:43,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:55:43,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297668953] [2023-11-19 07:55:43,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:55:43,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:55:43,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,426 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:55:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:55:43,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:55:43,681 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:55:43,689 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:55:43,689 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:55:43,693 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:55:43,693 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:55:43,694 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:43,694 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:55:43,694 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:55:43,694 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-11-19 07:55:43,694 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:55:43,694 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:55:43,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:43,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:43,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:44,026 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:55:44,027 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:55:44,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,032 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:55:44,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:55:44,042 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:55:44,074 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:55:44,074 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:55:44,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,089 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:55:44,097 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:55:44,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:55:44,130 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:55:44,130 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:55:44,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:55:44,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:55:44,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:55:44,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,260 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:55:44,260 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:55:44,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:55:44,314 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-19 07:55:44,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,323 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:55:44,336 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:55:44,336 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:55:44,336 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:55:44,336 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:55:44,336 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,336 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:55:44,336 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:55:44,337 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-11-19 07:55:44,337 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:55:44,337 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:55:44,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:44,395 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:44,400 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-19 07:55:44,562 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:55:44,567 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:55:44,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,570 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:55:44,581 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 [2023-11-19 07:55:44,594 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:55:44,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:55:44,595 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:55:44,595 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:55:44,595 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:55:44,604 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-11-19 07:55:44,604 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:55:44,621 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:55:44,626 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-19 07:55:44,627 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-19 07:55:44,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:55:44,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:55:44,663 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:55:44,676 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:55:44,676 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-19 07:55:44,677 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:55:44,677 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0#1) = -2*ULTIMATE.start_main_~z~0#1 + 4294967293 Supporting invariants [] [2023-11-19 07:55:44,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:55:44,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:44,705 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-19 07:55:44,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:55:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:44,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:55:44,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:55:44,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:55:44,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:55:44,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:55:44,819 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-11-19 07:55:44,821 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 07:55:44,855 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 14 states and 17 transitions. Complement of second has 6 states. [2023-11-19 07:55:44,857 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 [2023-11-19 07:55:44,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 07:55:44,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-11-19 07:55:44,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 1 letters. [2023-11-19 07:55:44,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:55:44,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 1 letters. [2023-11-19 07:55:44,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:55:44,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-19 07:55:44,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:55:44,867 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-11-19 07:55:44,871 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:55:44,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2023-11-19 07:55:44,875 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:55:44,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:55:44,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:55:44,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:55:44,876 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:55:44,876 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:55:44,876 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:55:44,876 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:55:44,876 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:55:44,877 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:55:44,877 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:55:44,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:55:44 BoogieIcfgContainer [2023-11-19 07:55:44,885 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:55:44,887 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:55:44,887 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:55:44,887 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:55:44,888 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:55:43" (3/4) ... [2023-11-19 07:55:44,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:55:44,891 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:55:44,893 INFO L158 Benchmark]: Toolchain (without parser) took 2237.52ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 114.9MB in the end (delta: 19.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:44,894 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:44,895 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.23ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 124.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:55:44,896 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.36ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 123.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:44,901 INFO L158 Benchmark]: Boogie Preprocessor took 21.52ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:55:44,901 INFO L158 Benchmark]: RCFGBuilder took 242.04ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 113.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 07:55:44,903 INFO L158 Benchmark]: BuchiAutomizer took 1726.27ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 114.9MB in the end (delta: -1.1MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2023-11-19 07:55:44,903 INFO L158 Benchmark]: Witness Printer took 4.52ms. Allocated memory is still 167.8MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:55:44,910 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 136.3MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.23ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 124.9MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.36ms. Allocated memory is still 167.8MB. Free memory was 124.9MB in the beginning and 123.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.52ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.04ms. Allocated memory is still 167.8MB. Free memory was 122.6MB in the beginning and 113.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1726.27ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 114.9MB in the end (delta: -1.1MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 4.52ms. Allocated memory is still 167.8MB. Free memory is still 114.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * z) + 4294967293) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital46 mio100 ax126 hnf100 lsp113 ukn59 mio100 lsp100 div100 bol100 ite100 ukn100 eq130 hnf96 smp100 dnf177 smp96 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 108ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-11-19 07:55:44,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:55:45,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefc689f-a170-4eed-8c79-4cb1baeba5ff/bin/uautomizer-verify-uCwYo4JHxu/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