./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/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_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/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 32bit --witnessprinter.graph.data.programhash eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:35,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:35,317 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-19 08:00:35,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:35,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:35,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:35,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:35,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:35,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:35,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:35,380 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:35,381 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-19 08:00:35,381 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-19 08:00:35,383 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-19 08:00:35,384 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-19 08:00:35,384 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-19 08:00:35,385 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-19 08:00:35,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:35,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-19 08:00:35,387 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:35,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:35,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:35,389 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:35,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-19 08:00:35,390 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-19 08:00:35,390 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-19 08:00:35,391 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:35,391 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:35,392 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:35,392 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-19 08:00:35,394 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:35,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:35,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:35,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:35,395 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:35,396 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-19 08:00:35,397 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_8b4d1e58-e4db-4286-adca-248e6d441ca7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eda92234de2991558d0fa68c10405194bf8879d4d71f81bbe5c79bf2cf318fe2 [2023-11-19 08:00:35,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:35,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:35,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:35,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:35,801 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:35,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-19 08:00:39,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:39,342 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:39,343 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/sv-benchmarks/c/recursive/EvenOdd03.c [2023-11-19 08:00:39,352 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/data/55ca6ea59/c697e16aa766405a8c62c5516123a67f/FLAG574d69a2d [2023-11-19 08:00:39,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/data/55ca6ea59/c697e16aa766405a8c62c5516123a67f [2023-11-19 08:00:39,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:39,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:39,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:39,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:39,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:39,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a2ab3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39, skipping insertion in model container [2023-11-19 08:00:39,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:39,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:39,661 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:39,678 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:39,694 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:39,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39 WrapperNode [2023-11-19 08:00:39,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:39,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:39,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:39,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:39,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,735 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-19 08:00:39,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:39,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:39,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:39,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:39,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,769 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,772 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,774 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:39,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:39,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:39,779 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:39,780 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (1/1) ... [2023-11-19 08:00:39,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:39,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:39,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:39,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:39,875 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-11-19 08:00:39,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-11-19 08:00:39,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:39,878 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-11-19 08:00:39,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-11-19 08:00:39,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:39,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:39,970 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:39,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:40,210 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:40,218 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:40,218 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:40,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:40 BoogieIcfgContainer [2023-11-19 08:00:40,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:40,223 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-19 08:00:40,224 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-19 08:00:40,228 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-19 08:00:40,229 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:00:40,229 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:00:39" (1/3) ... [2023-11-19 08:00:40,230 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d09c159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:00:40, skipping insertion in model container [2023-11-19 08:00:40,230 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:00:40,231 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:39" (2/3) ... [2023-11-19 08:00:40,231 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d09c159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:00:40, skipping insertion in model container [2023-11-19 08:00:40,231 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-19 08:00:40,231 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:40" (3/3) ... [2023-11-19 08:00:40,233 INFO L332 chiAutomizerObserver]: Analyzing ICFG EvenOdd03.c [2023-11-19 08:00:40,307 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-19 08:00:40,307 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-19 08:00:40,308 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-19 08:00:40,308 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-19 08:00:40,308 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-19 08:00:40,309 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-19 08:00:40,309 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-19 08:00:40,309 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-19 08:00:40,316 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 08:00:40,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 08:00:40,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:00:40,347 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:00:40,355 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:00:40,356 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:40,356 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-19 08:00:40,357 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 08:00:40,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-11-19 08:00:40,364 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-19 08:00:40,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-19 08:00:40,365 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-11-19 08:00:40,366 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:40,375 INFO L748 eck$LassoCheckResult]: Stem: 23#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~n~0#1, main_~result~0#1, main_~mod~0#1;havoc main_#t~nondet6#1;main_~n~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 22#L41true assume !(main_~n~0#1 < 0); 3#L44true call main_#t~ret7#1 := isEven(main_~n~0#1);< 8#$Ultimate##0true [2023-11-19 08:00:40,376 INFO L750 eck$LassoCheckResult]: Loop: 8#$Ultimate##0true ~n := #in~n; 17#L29true assume !(0 == ~n); 4#L31true assume !(1 == ~n); 7#L34true call #t~ret5 := isOdd(~n - 1);< 14#$Ultimate##0true ~n := #in~n; 18#L19true assume !(0 == ~n); 16#L21true assume !(1 == ~n); 20#L24true call #t~ret4 := isEven(~n - 1);< 8#$Ultimate##0true [2023-11-19 08:00:40,383 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:40,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1664502, now seen corresponding path program 1 times [2023-11-19 08:00:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:40,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407876663] [2023-11-19 08:00:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:40,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:00:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,584 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:00:40,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:40,589 INFO L85 PathProgramCache]: Analyzing trace with hash 2014448971, now seen corresponding path program 1 times [2023-11-19 08:00:40,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:40,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170823791] [2023-11-19 08:00:40,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:40,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,620 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:00:40,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,641 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:00:40,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:40,644 INFO L85 PathProgramCache]: Analyzing trace with hash 880062016, now seen corresponding path program 1 times [2023-11-19 08:00:40,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:40,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401545267] [2023-11-19 08:00:40,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:40,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 08:00:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 08:00:40,720 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-19 08:00:40,956 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:00:40,957 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:00:40,957 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:00:40,957 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:00:40,957 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-19 08:00:40,957 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:40,957 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:00:40,958 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:00:40,958 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Loop [2023-11-19 08:00:40,958 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:00:40,958 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:00:40,975 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 08:00:40,984 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 08:00:40,987 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 08:00:40,990 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 08:00:40,996 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 08:00:41,000 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 08:00:41,180 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:00:41,180 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-19 08:00:41,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,192 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,199 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-19 08:00:41,231 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,231 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=0} Honda state: {isOdd_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-19 08:00:41,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-19 08:00:41,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,276 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,276 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 08:00:41,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,309 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-19 08:00:41,321 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,321 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,344 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,344 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 08:00:41,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-19 08:00:41,373 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,373 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,394 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,395 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 08:00:41,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,419 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,436 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,436 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-19 08:00:41,458 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,459 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 08:00:41,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,484 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-19 08:00:41,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-19 08:00:41,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:41,553 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:41,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-19 08:00:41,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-19 08:00:41,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-19 08:00:41,595 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-19 08:00:41,595 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=-2} Honda state: {isEven_#in~n=-2} Generalized eigenvectors: [{isEven_#in~n=-1}, {isEven_#in~n=-1}, {isEven_#in~n=0}] Lambdas: [1, 1, 8] Nus: [0, 0] [2023-11-19 08:00:41,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:41,850 INFO L210 LassoAnalysis]: Preferences: [2023-11-19 08:00:41,850 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-19 08:00:41,850 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-19 08:00:41,850 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-19 08:00:41,850 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-19 08:00:41,851 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:41,851 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-19 08:00:41,851 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-19 08:00:41,851 INFO L133 ssoRankerPreferences]: Filename of dumped script: EvenOdd03.c_Iteration1_Lasso [2023-11-19 08:00:41,851 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-19 08:00:41,851 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-19 08:00:41,854 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 08:00:41,857 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 08:00:41,859 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 08:00:41,862 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 08:00:41,872 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 08:00:41,888 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 08:00:41,891 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 08:00:41,905 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 08:00:41,928 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 08:00:41,930 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 08:00:41,933 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 08:00:41,935 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 08:00:41,937 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 08:00:41,940 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 08:00:41,942 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 08:00:41,944 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 08:00:42,151 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-19 08:00:42,155 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-19 08:00:42,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:42,158 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,165 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 08:00:42,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-11-19 08:00:42,177 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:00:42,178 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:00:42,178 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:00:42,178 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:00:42,178 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:00:42,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:00:42,180 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:00:42,196 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:00:42,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:42,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:42,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:42,221 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,229 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 08:00:42,241 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:00:42,241 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:00:42,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:00:42,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:00:42,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:00:42,243 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:00:42,243 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:00:42,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-11-19 08:00:42,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:00:42,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:42,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:42,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:42,284 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,299 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 08:00:42,311 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:00:42,311 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-19 08:00:42,311 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:00:42,311 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-19 08:00:42,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:00:42,312 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-19 08:00:42,312 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-19 08:00:42,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-11-19 08:00:42,328 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-19 08:00:42,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:42,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:42,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:42,351 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,361 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 08:00:42,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-19 08:00:42,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-19 08:00:42,374 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-11-19 08:00:42,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-19 08:00:42,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-11-19 08:00:42,385 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-11-19 08:00:42,386 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-11-19 08:00:42,416 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-19 08:00:42,431 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-11-19 08:00:42,432 INFO L444 ModelExtractionUtils]: 5 out of 11 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-11-19 08:00:42,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-19 08:00:42,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:42,452 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:42,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-11-19 08:00:42,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-19 08:00:42,491 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-11-19 08:00:42,491 INFO L513 LassoAnalysis]: Proved termination. [2023-11-19 08:00:42,492 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(isEven_#in~n) = 1*isEven_#in~n Supporting invariants [1*isEven_#in~n >= 0] [2023-11-19 08:00:42,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:42,521 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-11-19 08:00:42,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:42,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 08:00:42,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:42,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:42,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 08:00:42,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:00:42,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-11-19 08:00:42,895 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 08:00:42,932 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 08:00:42,934 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 08:00:43,329 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 08:00:43,332 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 08:00:43,336 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 08:00:43,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 27 transitions. [2023-11-19 08:00:43,339 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 8 letters. [2023-11-19 08:00:43,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:00:43,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 12 letters. Loop has 8 letters. [2023-11-19 08:00:43,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:00:43,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 27 transitions. Stem has 4 letters. Loop has 16 letters. [2023-11-19 08:00:43,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-19 08:00:43,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78 states and 91 transitions. [2023-11-19 08:00:43,348 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:00:43,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78 states to 0 states and 0 transitions. [2023-11-19 08:00:43,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-19 08:00:43,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-19 08:00:43,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-19 08:00:43,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:43,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:00:43,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:00:43,353 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:00:43,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-19 08:00:43,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:00:43,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-19 08:00:43,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-19 08:00:43,360 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:00:43 BoogieIcfgContainer [2023-11-19 08:00:43,361 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-19 08:00:43,361 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:43,361 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:43,362 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:43,362 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:40" (3/4) ... [2023-11-19 08:00:43,364 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 08:00:43,365 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:43,366 INFO L158 Benchmark]: Toolchain (without parser) took 3981.56ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 118.8MB in the beginning and 118.4MB in the end (delta: 433.0kB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,366 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 115.3MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:43,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.40ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 108.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.46ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 106.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,368 INFO L158 Benchmark]: Boogie Preprocessor took 41.06ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 106.3MB in the end (delta: 597.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:43,369 INFO L158 Benchmark]: RCFGBuilder took 444.08ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 95.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,369 INFO L158 Benchmark]: BuchiAutomizer took 3137.34ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 95.9MB in the beginning and 119.4MB in the end (delta: -23.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,370 INFO L158 Benchmark]: Witness Printer took 3.73ms. Allocated memory is still 182.5MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:43,373 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 115.3MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.40ms. Allocated memory is still 151.0MB. Free memory was 118.8MB in the beginning and 108.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.46ms. Allocated memory is still 151.0MB. Free memory was 108.5MB in the beginning and 106.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.06ms. Allocated memory is still 151.0MB. Free memory was 106.9MB in the beginning and 106.3MB in the end (delta: 597.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 444.08ms. Allocated memory is still 151.0MB. Free memory was 105.8MB in the beginning and 95.9MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 3137.34ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 95.9MB in the beginning and 119.4MB in the end (delta: -23.6MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 3.73ms. Allocated memory is still 182.5MB. Free memory was 119.4MB in the beginning and 118.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. 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: inital46 mio100 ax100 hnf100 lsp64 ukn97 mio100 lsp100 div100 bol100 ite100 ukn100 eq190 hnf97 smp100 dnf440 smp19 tf103 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 141ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 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 08:00:43,406 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b4d1e58-e4db-4286-adca-248e6d441ca7/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