./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/EvenOdd01-2.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_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/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_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/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_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/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 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:56:23,840 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:56:23,914 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-11-19 07:56:23,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:56:23,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:56:23,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:56:23,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:56:23,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:56:23,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:56:23,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:56:23,952 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:56:23,952 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 07:56:23,953 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 07:56:23,954 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 07:56:23,954 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 07:56:23,955 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 07:56:23,955 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 07:56:23,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:56:23,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 07:56:23,957 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:56:23,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:56:23,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 07:56:23,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 07:56:23,960 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 07:56:23,960 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:56:23,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:56:23,961 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 07:56:23,962 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:56:23,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:56:23,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:56:23,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:56:23,964 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:56:23,966 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 07:56:23,966 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_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93e64a210ad8295ef3e6c8bf5a4996e01ec752ae44f5068490e5115d4dda29b5 [2023-11-19 07:56:24,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:56:24,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:56:24,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:56:24,312 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:56:24,312 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:56:24,314 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2023-11-19 07:56:27,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:56:27,979 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:56:27,980 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/sv-benchmarks/c/termination-numeric/EvenOdd01-2.c [2023-11-19 07:56:27,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/data/77114d519/af8b69fd93074d33a744a167f6dd0706/FLAG408d486f6 [2023-11-19 07:56:28,003 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/data/77114d519/af8b69fd93074d33a744a167f6dd0706 [2023-11-19 07:56:28,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:56:28,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:56:28,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:28,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:56:28,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:56:28,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3298d5c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28, skipping insertion in model container [2023-11-19 07:56:28,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:56:28,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:28,215 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:56:28,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:56:28,246 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:56:28,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28 WrapperNode [2023-11-19 07:56:28,247 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:56:28,248 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:28,248 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:56:28,248 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:56:28,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,287 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-11-19 07:56:28,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:56:28,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:56:28,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:56:28,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:56:28,299 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,311 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,318 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,319 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,326 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:56:28,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:56:28,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:56:28,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:56:28,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (1/1) ... [2023-11-19 07:56:28,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:28,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:28,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:28,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 07:56:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:56:28,412 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-11-19 07:56:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-11-19 07:56:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:56:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-11-19 07:56:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-11-19 07:56:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:56:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:56:28,477 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:56:28,479 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:56:28,604 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:56:28,613 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:56:28,614 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:56:28,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:28 BoogieIcfgContainer [2023-11-19 07:56:28,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:56:28,619 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 07:56:28,619 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 07:56:28,624 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 07:56:28,625 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:28,625 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:56:28" (1/3) ... [2023-11-19 07:56:28,626 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2390c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:28, skipping insertion in model container [2023-11-19 07:56:28,626 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:28,627 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:28" (2/3) ... [2023-11-19 07:56:28,627 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2390c6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:56:28, skipping insertion in model container [2023-11-19 07:56:28,627 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 07:56:28,628 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:28" (3/3) ... [2023-11-19 07:56:28,629 INFO L332 chiAutomizerObserver]: Analyzing ICFG EvenOdd01-2.c [2023-11-19 07:56:28,695 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 07:56:28,696 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 07:56:28,696 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 07:56:28,696 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 07:56:28,696 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 07:56:28,697 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 07:56:28,697 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 07:56:28,697 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 07:56:28,703 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:56:28,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:56:28,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:28,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:28,747 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:56:28,747 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:28,748 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 07:56:28,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-19 07:56:28,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 07:56:28,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 07:56:28,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 07:56:28,754 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 07:56:28,754 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:56:28,764 INFO L748 eck$LassoCheckResult]: Stem: 22#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(14, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~n~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 21#L41true assume !(main_~n~0#1 < 0); 3#L44true call main_#t~ret7#1 := isOdd(main_~n~0#1);< 13#$Ultimate##0true [2023-11-19 07:56:28,765 INFO L750 eck$LassoCheckResult]: Loop: 13#$Ultimate##0true ~n := #in~n; 17#L19true assume !(0 == ~n); 14#L21true assume !(1 == ~n); 19#L24true call #t~ret4 := isEven(~n - 1);< 8#$Ultimate##0true ~n := #in~n; 16#L29true assume !(0 == ~n); 4#L31true assume !(1 == ~n); 7#L34true call #t~ret5 := isOdd(~n - 1);< 13#$Ultimate##0true [2023-11-19 07:56:28,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:28,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1664502, now seen corresponding path program 1 times [2023-11-19 07:56:28,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:28,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986287425] [2023-11-19 07:56:28,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:28,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:28,906 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:28,940 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:28,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:28,944 INFO L85 PathProgramCache]: Analyzing trace with hash -436493749, now seen corresponding path program 1 times [2023-11-19 07:56:28,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:28,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331956330] [2023-11-19 07:56:28,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:28,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:28,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:28,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:28,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:28,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1570880704, now seen corresponding path program 1 times [2023-11-19 07:56:28,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:56:28,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920481350] [2023-11-19 07:56:28,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:56:28,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:56:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:29,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 07:56:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 07:56:29,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 07:56:29,329 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:56:29,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:56:29,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:56:29,331 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:56:29,331 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 07:56:29,331 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:56:29,331 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:56:29,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd01-2.c_Iteration1_Loop [2023-11-19 07:56:29,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:56:29,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:56:29,349 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 07:56:29,360 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 07:56:29,363 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 07:56:29,366 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 07:56:29,370 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 07:56:29,383 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 07:56:29,498 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:56:29,499 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 07:56:29,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,516 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,521 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,521 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 07:56:29,547 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,548 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=0} Honda state: {isEven_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:56:29,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 07:56:29,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,601 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,601 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret5=0} Honda state: {isEven_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:56:29,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,621 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 07:56:29,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,649 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,649 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret4=0} Honda state: {isOdd_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:56:29,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,666 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 07:56:29,670 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,670 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,686 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,686 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:56:29,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,711 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,711 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 07:56:29,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,760 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 07:56:29,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 07:56:29,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,851 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,851 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=-2} Honda state: {isOdd_#in~n=-2} Generalized eigenvectors: [{isOdd_#in~n=-1}, {isOdd_#in~n=0}, {isOdd_#in~n=-1}] Lambdas: [1, 15, 1] Nus: [1, 0] [2023-11-19 07:56:29,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:29,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:29,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:29,877 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:29,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 07:56:29,890 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 07:56:29,891 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 07:56:29,919 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 07:56:29,919 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 07:56:29,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:30,237 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 07:56:30,238 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 07:56:30,238 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 07:56:30,238 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 07:56:30,238 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 07:56:30,238 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,238 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 07:56:30,238 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 07:56:30,239 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd01-2.c_Iteration1_Lasso [2023-11-19 07:56:30,239 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 07:56:30,239 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 07:56:30,242 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 07:56:30,244 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 07:56:30,247 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 07:56:30,266 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 07:56:30,278 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 07:56:30,280 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 07:56:30,283 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 07:56:30,299 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 07:56:30,328 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 07:56:30,331 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 07:56:30,335 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 07:56:30,339 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 07:56:30,343 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 07:56:30,351 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 07:56:30,354 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 07:56:30,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 07:56:30,574 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 07:56:30,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,585 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,588 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 07:56:30,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 07:56:30,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:56:30,602 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:56:30,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:56:30,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:56:30,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:56:30,604 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:56:30,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:56:30,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:56:30,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:30,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 07:56:30,638 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 07:56:30,650 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:56:30,651 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 07:56:30,651 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:56:30,651 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:56:30,651 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:56:30,652 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 07:56:30,652 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 07:56:30,661 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:56:30,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:30,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,687 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,701 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 07:56:30,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:56:30,713 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:56:30,713 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:56:30,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:56:30,718 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:56:30,718 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:56:30,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 07:56:30,745 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:56:30,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:30,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,770 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,779 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 07:56:30,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:56:30,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:56:30,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 07:56:30,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:56:30,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 07:56:30,795 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-11-19 07:56:30,796 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-11-19 07:56:30,807 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 07:56:30,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:30,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,830 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,835 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 07:56:30,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 07:56:30,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 07:56:30,849 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 07:56:30,849 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 07:56:30,849 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 07:56:30,868 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-19 07:56:30,868 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 07:56:30,895 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 07:56:30,940 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-11-19 07:56:30,940 INFO L444 ModelExtractionUtils]: 4 out of 11 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-11-19 07:56:30,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 07:56:30,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:56:30,980 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 07:56:30,982 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 07:56:30,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-11-19 07:56:31,000 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-19 07:56:31,001 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 07:56:31,001 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(isOdd_#in~n) = 1*isOdd_#in~n Supporting invariants [1*isOdd_#in~n >= 0] [2023-11-19 07:56:31,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:31,032 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-19 07:56:31,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:56:31,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:31,102 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:56:31,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:56:31,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 07:56:31,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:56:31,394 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 07:56:31,448 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2023-11-19 07:56:31,451 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:31,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:56:31,937 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 25 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 78 states and 91 transitions. Complement of second has 25 states. [2023-11-19 07:56:31,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2023-11-19 07:56:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:56:31,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2023-11-19 07:56:31,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-19 07:56:31,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:56:31,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-19 07:56:31,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:56:31,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 16 letters. [2023-11-19 07:56:31,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 07:56:31,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 91 transitions. [2023-11-19 07:56:31,959 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:56:31,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2023-11-19 07:56:31,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 07:56:31,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 07:56:31,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 07:56:31,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 07:56:31,965 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:56:31,965 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:56:31,965 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:56:31,965 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 07:56:31,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:56:31,966 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 07:56:31,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 07:56:31,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:56:31 BoogieIcfgContainer [2023-11-19 07:56:31,975 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 07:56:31,975 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:56:31,976 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:56:31,976 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:56:31,976 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:28" (3/4) ... [2023-11-19 07:56:31,978 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 07:56:31,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:56:31,980 INFO L158 Benchmark]: Toolchain (without parser) took 3972.24ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 117.6MB in the end (delta: 16.5MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2023-11-19 07:56:31,981 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 113.2MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:31,981 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.74ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 123.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:56:31,984 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.15ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:56:31,985 INFO L158 Benchmark]: Boogie Preprocessor took 37.88ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 121.1MB in the end (delta: 958.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:31,985 INFO L158 Benchmark]: RCFGBuilder took 290.39ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 111.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:56:31,990 INFO L158 Benchmark]: BuchiAutomizer took 3355.77ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 117.6MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:31,991 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 167.8MB. Free memory is still 117.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:56:32,002 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 113.2MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.74ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 123.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.15ms. Allocated memory is still 167.8MB. Free memory was 123.7MB in the beginning and 122.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.88ms. Allocated memory is still 167.8MB. Free memory was 122.1MB in the beginning and 121.1MB in the end (delta: 958.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.39ms. Allocated memory is still 167.8MB. Free memory was 121.1MB in the beginning and 111.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3355.77ms. Allocated memory is still 167.8MB. Free memory was 111.3MB in the beginning and 117.6MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 167.8MB. Free memory is still 117.6MB. 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 \old(n) and consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. 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, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 14 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital50 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq191 hnf97 smp100 dnf433 smp16 tf103 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 171ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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 07:56:32,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e418d0c6-b5a6-485d-9af0-fb3dc975cd98/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE