./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:15:45,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:15:45,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:15:45,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:15:45,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:15:45,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:15:45,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:15:45,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:15:45,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:15:45,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:15:45,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:15:45,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:15:45,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:15:45,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:15:45,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:15:45,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:15:45,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:15:45,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:15:45,410 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:15:45,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:15:45,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:15:45,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:15:45,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:15:45,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:15:45,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:15:45,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:15:45,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:15:45,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:15:45,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:15:45,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:15:45,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:15:45,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:15:45,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:15:45,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:15:45,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:15:45,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:15:45,425 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:15:45,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:15:45,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:15:45,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:15:45,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:15:45,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-12-13 21:15:45,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:15:45,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:15:45,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:15:45,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:15:45,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:15:45,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:15:45,449 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:15:45,449 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 21:15:45,450 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 21:15:45,450 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 21:15:45,450 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 21:15:45,450 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 21:15:45,450 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 21:15:45,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 21:15:45,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:15:45,452 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 21:15:45,452 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:15:45,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 21:15:45,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:15:45,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:15:45,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:15:45,453 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:15:45,453 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 21:15:45,454 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c4ca36c34c25cccb97ec2e65527d2a743b4e62b95f1f396c9f281ef44a01670 [2022-12-13 21:15:45,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:15:45,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:15:45,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:15:45,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:15:45,677 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:15:45,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-12-13 21:15:48,286 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:15:48,442 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:15:48,442 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/sv-benchmarks/c/termination-restricted-15/UpAndDownIneq.c [2022-12-13 21:15:48,448 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/data/3f805d08f/7289eea12b2c46d789837bfc42b06453/FLAG216e91c98 [2022-12-13 21:15:48,462 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/data/3f805d08f/7289eea12b2c46d789837bfc42b06453 [2022-12-13 21:15:48,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:15:48,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:15:48,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:15:48,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:15:48,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:15:48,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1eac7233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48, skipping insertion in model container [2022-12-13 21:15:48,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:15:48,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:15:48,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:15:48,609 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:15:48,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:15:48,627 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:15:48,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48 WrapperNode [2022-12-13 21:15:48,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:15:48,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:15:48,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:15:48,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:15:48,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,649 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2022-12-13 21:15:48,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:15:48,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:15:48,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:15:48,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:15:48,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,661 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:15:48,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:15:48,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:15:48,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:15:48,664 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (1/1) ... [2022-12-13 21:15:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:48,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:48,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:48,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 21:15:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:15:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:15:48,785 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:15:48,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:15:48,828 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:15:48,832 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:15:48,833 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:15:48,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:48 BoogieIcfgContainer [2022-12-13 21:15:48,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:15:48,835 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 21:15:48,835 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 21:15:48,837 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 21:15:48,838 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:15:48,838 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 09:15:48" (1/3) ... [2022-12-13 21:15:48,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e4588b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:15:48, skipping insertion in model container [2022-12-13 21:15:48,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:15:48,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:15:48" (2/3) ... [2022-12-13 21:15:48,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e4588b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 09:15:48, skipping insertion in model container [2022-12-13 21:15:48,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 21:15:48,839 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:48" (3/3) ... [2022-12-13 21:15:48,840 INFO L332 chiAutomizerObserver]: Analyzing ICFG UpAndDownIneq.c [2022-12-13 21:15:48,882 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 21:15:48,883 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 21:15:48,883 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 21:15:48,883 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 21:15:48,883 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 21:15:48,883 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 21:15:48,883 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 21:15:48,883 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 21:15:48,886 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:48,904 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:15:48,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:48,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:48,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 21:15:48,909 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:48,909 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 21:15:48,910 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:48,911 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-12-13 21:15:48,911 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:48,911 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:48,911 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-12-13 21:15:48,912 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:48,918 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4#L18-1true [2022-12-13 21:15:48,919 INFO L750 eck$LassoCheckResult]: Loop: 4#L18-1true assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 10#L12true assume !(main_~i~0#1 >= 10); 2#L12-2true assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 7#L15-1true assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4#L18-1true [2022-12-13 21:15:48,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:48,923 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-12-13 21:15:48,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:48,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911969174] [2022-12-13 21:15:48,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:48,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:48,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:48,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:49,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1267244, now seen corresponding path program 1 times [2022-12-13 21:15:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:49,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192435166] [2022-12-13 21:15:49,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:49,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:49,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,017 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,025 INFO L85 PathProgramCache]: Analyzing trace with hash 889694446, now seen corresponding path program 1 times [2022-12-13 21:15:49,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:49,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794015587] [2022-12-13 21:15:49,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:49,114 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:49,114 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:49,114 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:49,114 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:49,115 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:49,115 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,115 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:49,115 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:49,115 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-12-13 21:15:49,115 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:49,115 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:49,127 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,147 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,197 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:49,197 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:49,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 21:15:49,202 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:49,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,226 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:49,226 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:49,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:49,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,232 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 21:15:49,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:49,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,260 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:49,260 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:49,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 21:15:49,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,265 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 21:15:49,267 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:49,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:49,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,283 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 21:15:49,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:49,285 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,299 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:49,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 21:15:49,302 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:49,302 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:49,302 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:49,302 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:49,302 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:49,302 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,303 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:49,303 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:49,303 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration1_Loop [2022-12-13 21:15:49,303 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:49,303 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:49,310 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,313 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,318 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,359 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:49,363 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:49,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,365 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 21:15:49,367 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 [2022-12-13 21:15:49,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:49,378 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:49,378 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:49,378 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:49,378 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:49,380 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:49,380 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:49,383 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:49,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 21:15:49,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,387 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 21:15:49,389 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 [2022-12-13 21:15:49,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:49,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:49,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:49,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:49,402 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 21:15:49,402 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 21:15:49,406 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:49,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 21:15:49,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,411 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-12-13 21:15:49,413 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 [2022-12-13 21:15:49,423 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:49,423 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:49,423 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:49,424 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:49,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 21:15:49,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 21:15:49,431 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:49,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-12-13 21:15:49,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,435 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-12-13 21:15:49,437 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 [2022-12-13 21:15:49,447 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:49,447 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:49,448 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:49,448 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:49,448 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:49,449 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:49,449 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:49,452 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:49,456 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:49,456 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:15:49,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,486 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-12-13 21:15:49,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:49,493 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:49,493 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:49,495 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 1 Supporting invariants [] [2022-12-13 21:15:49,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-12-13 21:15:49,515 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:49,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:49,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:49,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:49,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:49,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:49,664 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:49,666 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:49,712 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 36 states and 54 transitions. Complement of second has 8 states. [2022-12-13 21:15:49,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:49,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:49,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2022-12-13 21:15:49,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 4 letters. [2022-12-13 21:15:49,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:49,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 6 letters. Loop has 4 letters. [2022-12-13 21:15:49,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:49,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2022-12-13 21:15:49,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:49,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 54 transitions. [2022-12-13 21:15:49,722 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:15:49,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 19 states and 30 transitions. [2022-12-13 21:15:49,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2022-12-13 21:15:49,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2022-12-13 21:15:49,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 30 transitions. [2022-12-13 21:15:49,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:49,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19 states and 30 transitions. [2022-12-13 21:15:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 30 transitions. [2022-12-13 21:15:49,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-12-13 21:15:49,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 17 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2022-12-13 21:15:49,745 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-12-13 21:15:49,745 INFO L428 stractBuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2022-12-13 21:15:49,745 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 21:15:49,745 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2022-12-13 21:15:49,746 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:15:49,746 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:49,746 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:49,746 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 21:15:49,746 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:49,747 INFO L748 eck$LassoCheckResult]: Stem: 100#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 101#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 105#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 97#L12 [2022-12-13 21:15:49,747 INFO L750 eck$LassoCheckResult]: Loop: 97#L12 assume !(main_~i~0#1 >= 10); 106#L12-2 assume !(main_~i~0#1 <= 0); 107#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 96#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 97#L12 [2022-12-13 21:15:49,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,747 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-12-13 21:15:49,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:49,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067259320] [2022-12-13 21:15:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:49,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,751 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:49,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1422136, now seen corresponding path program 1 times [2022-12-13 21:15:49,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:49,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345546804] [2022-12-13 21:15:49,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:49,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:49,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:49,760 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:49,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725983, now seen corresponding path program 1 times [2022-12-13 21:15:49,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:49,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573793655] [2022-12-13 21:15:49,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:49,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:49,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:49,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:49,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573793655] [2022-12-13 21:15:49,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573793655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:49,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:49,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:15:49,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883547504] [2022-12-13 21:15:49,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:49,822 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:49,823 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:49,823 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:49,823 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:49,823 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:49,823 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,823 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:49,823 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:49,823 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-12-13 21:15:49,823 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:49,823 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:49,825 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,832 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,834 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,858 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:49,858 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:49,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,859 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-12-13 21:15:49,861 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:49,861 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,880 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:49,880 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:49,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2022-12-13 21:15:49,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,884 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-12-13 21:15:49,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:49,887 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2022-12-13 21:15:49,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,902 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-12-13 21:15:49,904 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:49,904 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:49,927 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:49,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-12-13 21:15:49,930 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:49,930 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:49,930 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:49,930 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:49,930 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:49,930 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,930 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:49,930 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:49,930 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration2_Loop [2022-12-13 21:15:49,930 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:49,931 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:49,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,934 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:49,969 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:49,969 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:49,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,970 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-12-13 21:15:49,972 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 [2022-12-13 21:15:49,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:49,982 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:49,982 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:49,982 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:49,984 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 21:15:49,984 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 21:15:49,988 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:49,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-12-13 21:15:49,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:49,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:49,992 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:49,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-12-13 21:15:49,994 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 [2022-12-13 21:15:50,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:50,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:50,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:50,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:50,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:50,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:50,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:50,008 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:50,010 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:50,011 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:15:50,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,012 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-12-13 21:15:50,014 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:50,014 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:50,014 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:50,014 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-12-13 21:15:50,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2022-12-13 21:15:50,019 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:50,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:50,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:50,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:50,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,090 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 21:15:50,090 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 44 states and 73 transitions. Complement of second has 7 states. [2022-12-13 21:15:50,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2022-12-13 21:15:50,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 4 letters. [2022-12-13 21:15:50,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2022-12-13 21:15:50,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 8 letters. [2022-12-13 21:15:50,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,117 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 73 transitions. [2022-12-13 21:15:50,119 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2022-12-13 21:15:50,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 36 states and 59 transitions. [2022-12-13 21:15:50,120 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-12-13 21:15:50,120 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2022-12-13 21:15:50,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 59 transitions. [2022-12-13 21:15:50,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:50,121 INFO L218 hiAutomatonCegarLoop]: Abstraction has 36 states and 59 transitions. [2022-12-13 21:15:50,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 59 transitions. [2022-12-13 21:15:50,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2022-12-13 21:15:50,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 27 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 46 transitions. [2022-12-13 21:15:50,124 INFO L240 hiAutomatonCegarLoop]: Abstraction has 28 states and 46 transitions. [2022-12-13 21:15:50,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:50,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:15:50,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:15:50,127 INFO L87 Difference]: Start difference. First operand 28 states and 46 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:50,138 INFO L93 Difference]: Finished difference Result 37 states and 56 transitions. [2022-12-13 21:15:50,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 56 transitions. [2022-12-13 21:15:50,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 21:15:50,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 32 states and 49 transitions. [2022-12-13 21:15:50,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-12-13 21:15:50,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 21:15:50,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 49 transitions. [2022-12-13 21:15:50,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:50,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 32 states and 49 transitions. [2022-12-13 21:15:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 49 transitions. [2022-12-13 21:15:50,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2022-12-13 21:15:50,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 25 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 40 transitions. [2022-12-13 21:15:50,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-12-13 21:15:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:15:50,144 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 40 transitions. [2022-12-13 21:15:50,144 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 21:15:50,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 40 transitions. [2022-12-13 21:15:50,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 21:15:50,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:50,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:50,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-12-13 21:15:50,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:50,145 INFO L748 eck$LassoCheckResult]: Stem: 272#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 276#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 277#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 264#L12-2 assume !(main_~i~0#1 <= 0); 265#L15-1 [2022-12-13 21:15:50,146 INFO L750 eck$LassoCheckResult]: Loop: 265#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 274#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 283#L12 assume !(main_~i~0#1 >= 10); 281#L12-2 assume !(main_~i~0#1 <= 0); 265#L15-1 [2022-12-13 21:15:50,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,146 INFO L85 PathProgramCache]: Analyzing trace with hash 28699760, now seen corresponding path program 1 times [2022-12-13 21:15:50,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638005909] [2022-12-13 21:15:50,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,150 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:50,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:50,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1768758, now seen corresponding path program 1 times [2022-12-13 21:15:50,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536224055] [2022-12-13 21:15:50,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2022-12-13 21:15:50,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2022-12-13 21:15:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,163 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:50,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:50,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,168 INFO L85 PathProgramCache]: Analyzing trace with hash 588716581, now seen corresponding path program 1 times [2022-12-13 21:15:50,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369642506] [2022-12-13 21:15:50,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:50,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,179 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:50,212 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:50,212 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:50,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:50,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:50,213 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:50,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:50,213 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:50,213 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-12-13 21:15:50,213 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:50,213 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:50,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,217 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,220 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,227 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,261 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:50,261 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:50,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,262 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-12-13 21:15:50,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,264 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,282 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:50,282 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:50,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:50,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,286 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2022-12-13 21:15:50,288 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,288 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,305 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:50,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:50,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:50,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,309 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2022-12-13 21:15:50,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:50,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,326 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2022-12-13 21:15:50,329 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:50,329 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,415 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:50,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:50,419 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:50,419 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:50,419 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:50,419 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:50,419 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:50,419 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,419 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:50,419 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:50,419 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration3_Loop [2022-12-13 21:15:50,419 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:50,419 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:50,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,423 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,428 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,455 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:50,456 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:50,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,457 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2022-12-13 21:15:50,459 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 [2022-12-13 21:15:50,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:50,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:50,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:50,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:50,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:50,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:50,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:50,471 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:50,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2022-12-13 21:15:50,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,475 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2022-12-13 21:15:50,477 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 [2022-12-13 21:15:50,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:50,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:50,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:50,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:50,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:50,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:50,489 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:50,491 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:50,493 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-12-13 21:15:50,493 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:15:50,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,494 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2022-12-13 21:15:50,496 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:50,496 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:50,496 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:50,496 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-12-13 21:15:50,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2022-12-13 21:15:50,499 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:50,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:50,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:50,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:50,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,532 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:50,532 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,554 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 40 transitions. cyclomatic complexity: 17. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 58 states and 90 transitions. Complement of second has 7 states. [2022-12-13 21:15:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:50,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 21:15:50,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2022-12-13 21:15:50,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2022-12-13 21:15:50,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2022-12-13 21:15:50,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:50,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 90 transitions. [2022-12-13 21:15:50,557 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-12-13 21:15:50,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 55 states and 85 transitions. [2022-12-13 21:15:50,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2022-12-13 21:15:50,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2022-12-13 21:15:50,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 85 transitions. [2022-12-13 21:15:50,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:50,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 85 transitions. [2022-12-13 21:15:50,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 85 transitions. [2022-12-13 21:15:50,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 49. [2022-12-13 21:15:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 49 states have (on average 1.6122448979591837) internal successors, (79), 48 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 79 transitions. [2022-12-13 21:15:50,560 INFO L240 hiAutomatonCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-12-13 21:15:50,560 INFO L428 stractBuchiCegarLoop]: Abstraction has 49 states and 79 transitions. [2022-12-13 21:15:50,561 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 21:15:50,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 49 states and 79 transitions. [2022-12-13 21:15:50,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2022-12-13 21:15:50,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:50,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:50,561 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2022-12-13 21:15:50,561 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:50,562 INFO L748 eck$LassoCheckResult]: Stem: 406#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 407#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 412#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 425#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 418#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 419#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 433#L18-1 [2022-12-13 21:15:50,562 INFO L750 eck$LassoCheckResult]: Loop: 433#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 420#L12 assume !(main_~i~0#1 >= 10); 421#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 432#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 433#L18-1 [2022-12-13 21:15:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889692526, now seen corresponding path program 1 times [2022-12-13 21:15:50,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717973011] [2022-12-13 21:15:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:50,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717973011] [2022-12-13 21:15:50,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717973011] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:50,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:50,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:15:50,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301764224] [2022-12-13 21:15:50,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:50,578 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 21:15:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1267246, now seen corresponding path program 1 times [2022-12-13 21:15:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702317550] [2022-12-13 21:15:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:50,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702317550] [2022-12-13 21:15:50,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702317550] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:50,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:50,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:15:50,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227123327] [2022-12-13 21:15:50,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:50,596 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:15:50,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:50,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:15:50,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:15:50,596 INFO L87 Difference]: Start difference. First operand 49 states and 79 transitions. cyclomatic complexity: 36 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:50,605 INFO L93 Difference]: Finished difference Result 47 states and 69 transitions. [2022-12-13 21:15:50,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 47 states and 69 transitions. [2022-12-13 21:15:50,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 21:15:50,607 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 47 states to 41 states and 60 transitions. [2022-12-13 21:15:50,607 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2022-12-13 21:15:50,607 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2022-12-13 21:15:50,607 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 60 transitions. [2022-12-13 21:15:50,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:50,607 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 60 transitions. [2022-12-13 21:15:50,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 60 transitions. [2022-12-13 21:15:50,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2022-12-13 21:15:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 40 states have (on average 1.475) internal successors, (59), 39 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 59 transitions. [2022-12-13 21:15:50,609 INFO L240 hiAutomatonCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-12-13 21:15:50,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:15:50,610 INFO L428 stractBuchiCegarLoop]: Abstraction has 40 states and 59 transitions. [2022-12-13 21:15:50,610 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 21:15:50,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 59 transitions. [2022-12-13 21:15:50,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2022-12-13 21:15:50,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:50,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:50,611 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 21:15:50,611 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:50,611 INFO L748 eck$LassoCheckResult]: Stem: 509#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 510#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 514#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 521#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 519#L12-2 assume !(main_~i~0#1 <= 0); 511#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 512#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 531#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 501#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 502#L15-1 [2022-12-13 21:15:50,611 INFO L750 eck$LassoCheckResult]: Loop: 502#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 517#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 530#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 528#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 502#L15-1 [2022-12-13 21:15:50,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash 588716517, now seen corresponding path program 1 times [2022-12-13 21:15:50,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652941100] [2022-12-13 21:15:50,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:50,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652941100] [2022-12-13 21:15:50,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652941100] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:50,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:50,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:15:50,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404673209] [2022-12-13 21:15:50,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:50,636 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 21:15:50,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1709112, now seen corresponding path program 1 times [2022-12-13 21:15:50,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529087621] [2022-12-13 21:15:50,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:50,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529087621] [2022-12-13 21:15:50,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529087621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:50,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:50,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:15:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249847786] [2022-12-13 21:15:50,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:50,653 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 21:15:50,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:50,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:15:50,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:15:50,654 INFO L87 Difference]: Start difference. First operand 40 states and 59 transitions. cyclomatic complexity: 24 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:50,663 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-12-13 21:15:50,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 64 transitions. [2022-12-13 21:15:50,665 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2022-12-13 21:15:50,665 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 45 states and 60 transitions. [2022-12-13 21:15:50,665 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2022-12-13 21:15:50,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2022-12-13 21:15:50,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 60 transitions. [2022-12-13 21:15:50,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:50,666 INFO L218 hiAutomatonCegarLoop]: Abstraction has 45 states and 60 transitions. [2022-12-13 21:15:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 60 transitions. [2022-12-13 21:15:50,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 39. [2022-12-13 21:15:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:50,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2022-12-13 21:15:50,669 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-12-13 21:15:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:15:50,670 INFO L428 stractBuchiCegarLoop]: Abstraction has 39 states and 54 transitions. [2022-12-13 21:15:50,670 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 21:15:50,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 54 transitions. [2022-12-13 21:15:50,670 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-12-13 21:15:50,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:50,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:50,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:15:50,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:50,671 INFO L748 eck$LassoCheckResult]: Stem: 606#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 607#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 601#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 602#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 597#L12-2 assume !(main_~i~0#1 <= 0); 598#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 608#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 623#L12 assume !(main_~i~0#1 >= 10); 618#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 614#L15-1 [2022-12-13 21:15:50,671 INFO L750 eck$LassoCheckResult]: Loop: 614#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 615#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 620#L12 assume !(main_~i~0#1 >= 10); 619#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 614#L15-1 [2022-12-13 21:15:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,671 INFO L85 PathProgramCache]: Analyzing trace with hash 588716579, now seen corresponding path program 1 times [2022-12-13 21:15:50,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854035690] [2022-12-13 21:15:50,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:50,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854035690] [2022-12-13 21:15:50,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854035690] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:15:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709179083] [2022-12-13 21:15:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:15:50,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,694 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-12-13 21:15:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:50,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:15:50,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:15:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:50,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1709179083] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:15:50,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:15:50,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 21:15:50,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533782589] [2022-12-13 21:15:50,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:15:50,742 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 21:15:50,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:50,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1709174, now seen corresponding path program 2 times [2022-12-13 21:15:50,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:50,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778170614] [2022-12-13 21:15:50,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:50,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:50,749 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:50,775 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:50,775 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:50,775 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:50,775 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:50,775 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:50,775 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,776 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:50,776 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:50,776 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-12-13 21:15:50,776 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:50,776 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:50,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,781 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,816 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:50,816 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:50,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,817 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2022-12-13 21:15:50,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,820 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,837 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:50,837 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:50,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2022-12-13 21:15:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,841 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2022-12-13 21:15:50,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,854 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:50,854 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=1} Honda state: {ULTIMATE.start_main_~up~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:50,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2022-12-13 21:15:50,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,858 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2022-12-13 21:15:50,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:50,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2022-12-13 21:15:50,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,874 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2022-12-13 21:15:50,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:50,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:50,943 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:50,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2022-12-13 21:15:50,946 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:50,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:50,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:50,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:50,946 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:50,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,946 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:50,946 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:50,946 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration6_Loop [2022-12-13 21:15:50,946 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:50,946 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:50,947 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,955 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,957 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:50,982 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:50,982 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:50,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:50,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:50,983 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:50,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2022-12-13 21:15:50,985 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 [2022-12-13 21:15:50,995 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:50,995 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:50,995 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:50,995 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:50,995 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:50,996 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:50,996 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:50,998 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:51,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2022-12-13 21:15:51,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,002 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2022-12-13 21:15:51,004 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 [2022-12-13 21:15:51,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:51,014 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:51,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:51,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:51,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:51,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:51,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:51,017 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:51,020 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:51,020 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 21:15:51,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,021 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2022-12-13 21:15:51,023 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:51,023 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:51,023 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:51,023 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-12-13 21:15:51,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2022-12-13 21:15:51,026 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:51,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:51,060 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:51,060 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 54 transitions. cyclomatic complexity: 20. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 101 states and 136 transitions. Complement of second has 7 states. [2022-12-13 21:15:51,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:51,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 21:15:51,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 4 letters. [2022-12-13 21:15:51,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 13 letters. Loop has 4 letters. [2022-12-13 21:15:51,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 9 letters. Loop has 8 letters. [2022-12-13 21:15:51,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,091 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 101 states and 136 transitions. [2022-12-13 21:15:51,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2022-12-13 21:15:51,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 101 states to 91 states and 122 transitions. [2022-12-13 21:15:51,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2022-12-13 21:15:51,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2022-12-13 21:15:51,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 122 transitions. [2022-12-13 21:15:51,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:51,094 INFO L218 hiAutomatonCegarLoop]: Abstraction has 91 states and 122 transitions. [2022-12-13 21:15:51,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 122 transitions. [2022-12-13 21:15:51,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2022-12-13 21:15:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 78 states have (on average 1.3974358974358974) internal successors, (109), 77 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2022-12-13 21:15:51,100 INFO L240 hiAutomatonCegarLoop]: Abstraction has 78 states and 109 transitions. [2022-12-13 21:15:51,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:51,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:15:51,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:15:51,100 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:51,128 INFO L93 Difference]: Finished difference Result 139 states and 174 transitions. [2022-12-13 21:15:51,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 139 states and 174 transitions. [2022-12-13 21:15:51,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 30 [2022-12-13 21:15:51,129 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 139 states to 108 states and 137 transitions. [2022-12-13 21:15:51,130 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56 [2022-12-13 21:15:51,130 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 56 [2022-12-13 21:15:51,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 108 states and 137 transitions. [2022-12-13 21:15:51,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:51,130 INFO L218 hiAutomatonCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-12-13 21:15:51,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states and 137 transitions. [2022-12-13 21:15:51,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 86. [2022-12-13 21:15:51,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.2906976744186047) internal successors, (111), 85 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 111 transitions. [2022-12-13 21:15:51,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-12-13 21:15:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:15:51,133 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 111 transitions. [2022-12-13 21:15:51,133 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2022-12-13 21:15:51,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 111 transitions. [2022-12-13 21:15:51,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-12-13 21:15:51,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:51,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:51,134 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 21:15:51,134 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:51,135 INFO L748 eck$LassoCheckResult]: Stem: 1075#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1076#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1079#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1088#L12 assume !(main_~i~0#1 >= 10); 1098#L12-2 assume !(main_~i~0#1 <= 0); 1097#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1095#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1092#L12 assume !(main_~i~0#1 >= 10); 1091#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1090#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1070#L18-1 [2022-12-13 21:15:51,139 INFO L750 eck$LassoCheckResult]: Loop: 1070#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1071#L12 assume !(main_~i~0#1 >= 10); 1120#L12-2 assume !(main_~i~0#1 <= 0); 1081#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1070#L18-1 [2022-12-13 21:15:51,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1449615143, now seen corresponding path program 1 times [2022-12-13 21:15:51,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211575323] [2022-12-13 21:15:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2022-12-13 21:15:51,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,145 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:51,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1267306, now seen corresponding path program 2 times [2022-12-13 21:15:51,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251298389] [2022-12-13 21:15:51,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,151 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:51,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,153 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:51,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,153 INFO L85 PathProgramCache]: Analyzing trace with hash -130036926, now seen corresponding path program 2 times [2022-12-13 21:15:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498990428] [2022-12-13 21:15:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:51,185 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:51,185 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:51,185 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:51,185 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:51,185 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:51,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:51,186 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:51,186 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-12-13 21:15:51,186 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:51,186 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:51,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,191 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,195 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,222 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:51,222 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:51,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,223 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2022-12-13 21:15:51,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:51,225 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2022-12-13 21:15:51,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,240 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2022-12-13 21:15:51,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:51,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,254 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:51,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2022-12-13 21:15:51,257 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:51,257 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:51,257 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:51,257 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:51,257 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:51,257 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,257 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:51,257 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:51,257 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration7_Loop [2022-12-13 21:15:51,258 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:51,258 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:51,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,262 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,265 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:51,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:51,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,282 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2022-12-13 21:15:51,284 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 [2022-12-13 21:15:51,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:51,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:51,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:51,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:51,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:51,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:51,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:51,297 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:51,299 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:51,299 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-12-13 21:15:51,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,300 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2022-12-13 21:15:51,302 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:51,302 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:51,302 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:51,302 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 19 Supporting invariants [] [2022-12-13 21:15:51,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:51,305 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:51,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:51,338 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:51,338 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31 Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,351 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 111 transitions. cyclomatic complexity: 31. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 115 states and 145 transitions. Complement of second has 7 states. [2022-12-13 21:15:51,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:51,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 21:15:51,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 4 letters. [2022-12-13 21:15:51,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 14 letters. Loop has 4 letters. [2022-12-13 21:15:51,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 10 letters. Loop has 8 letters. [2022-12-13 21:15:51,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 115 states and 145 transitions. [2022-12-13 21:15:51,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-12-13 21:15:51,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 115 states to 97 states and 125 transitions. [2022-12-13 21:15:51,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2022-12-13 21:15:51,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2022-12-13 21:15:51,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 97 states and 125 transitions. [2022-12-13 21:15:51,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:51,355 INFO L218 hiAutomatonCegarLoop]: Abstraction has 97 states and 125 transitions. [2022-12-13 21:15:51,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states and 125 transitions. [2022-12-13 21:15:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2022-12-13 21:15:51,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 86 states have (on average 1.302325581395349) internal successors, (112), 85 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2022-12-13 21:15:51,360 INFO L240 hiAutomatonCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-12-13 21:15:51,360 INFO L428 stractBuchiCegarLoop]: Abstraction has 86 states and 112 transitions. [2022-12-13 21:15:51,360 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2022-12-13 21:15:51,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 86 states and 112 transitions. [2022-12-13 21:15:51,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-12-13 21:15:51,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:51,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:51,361 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:15:51,361 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:51,361 INFO L748 eck$LassoCheckResult]: Stem: 1341#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1342#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1347#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1370#L12 assume !(main_~i~0#1 >= 10); 1368#L12-2 assume !(main_~i~0#1 <= 0); 1367#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1365#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1362#L12 assume !(main_~i~0#1 >= 10); 1361#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1348#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1336#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1338#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1332#L12-2 [2022-12-13 21:15:51,361 INFO L750 eck$LassoCheckResult]: Loop: 1332#L12-2 assume !(main_~i~0#1 <= 0); 1333#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1351#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1416#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1332#L12-2 [2022-12-13 21:15:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1510748164, now seen corresponding path program 1 times [2022-12-13 21:15:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113763370] [2022-12-13 21:15:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:15:51,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:51,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113763370] [2022-12-13 21:15:51,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113763370] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:15:51,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:15:51,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:15:51,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569957759] [2022-12-13 21:15:51,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:15:51,386 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 21:15:51,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 1 times [2022-12-13 21:15:51,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773123290] [2022-12-13 21:15:51,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,389 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:51,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:51,414 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:51,414 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:51,414 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:51,415 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:51,415 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:51,415 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,415 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:51,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:51,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-12-13 21:15:51,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:51,415 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:51,416 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,419 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,422 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,452 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:51,452 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:51,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,453 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2022-12-13 21:15:51,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:51,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:51,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~up~0#1=0} Honda state: {ULTIMATE.start_main_~up~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:51,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2022-12-13 21:15:51,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,470 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2022-12-13 21:15:51,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:51,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,488 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:51,489 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:51,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2022-12-13 21:15:51,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,492 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2022-12-13 21:15:51,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:51,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 21:15:51,513 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 21:15:51,516 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2022-12-13 21:15:51,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,517 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2022-12-13 21:15:51,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:51,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2022-12-13 21:15:51,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,533 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2022-12-13 21:15:51,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:51,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:51,619 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:51,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2022-12-13 21:15:51,622 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:51,622 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:51,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:51,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:51,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:51,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:51,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:51,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration8_Loop [2022-12-13 21:15:51,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:51,622 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:51,623 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,626 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,630 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,650 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:51,651 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:51,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,651 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2022-12-13 21:15:51,653 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 [2022-12-13 21:15:51,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:51,663 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:51,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:51,664 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:51,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:51,665 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:51,665 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:51,666 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:51,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:51,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,670 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2022-12-13 21:15:51,672 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 [2022-12-13 21:15:51,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:51,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:51,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:51,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:51,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-12-13 21:15:51,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-12-13 21:15:51,686 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 21:15:51,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2022-12-13 21:15:51,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,690 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2022-12-13 21:15:51,692 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 [2022-12-13 21:15:51,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:51,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:51,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:51,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:51,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:51,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:51,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:51,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:51,707 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:51,707 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 21:15:51,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,708 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2022-12-13 21:15:51,710 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:51,710 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:51,710 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:51,710 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-12-13 21:15:51,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2022-12-13 21:15:51,713 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:51,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:51,749 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:51,750 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32 Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,770 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 86 states and 112 transitions. cyclomatic complexity: 32. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 188 states and 256 transitions. Complement of second has 7 states. [2022-12-13 21:15:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 21:15:51,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 4 letters. [2022-12-13 21:15:51,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 4 letters. [2022-12-13 21:15:51,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 8 letters. [2022-12-13 21:15:51,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:51,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 188 states and 256 transitions. [2022-12-13 21:15:51,773 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-12-13 21:15:51,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 188 states to 140 states and 182 transitions. [2022-12-13 21:15:51,774 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2022-12-13 21:15:51,774 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2022-12-13 21:15:51,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 140 states and 182 transitions. [2022-12-13 21:15:51,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:51,774 INFO L218 hiAutomatonCegarLoop]: Abstraction has 140 states and 182 transitions. [2022-12-13 21:15:51,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states and 182 transitions. [2022-12-13 21:15:51,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 94. [2022-12-13 21:15:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.3191489361702127) internal successors, (124), 93 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 124 transitions. [2022-12-13 21:15:51,777 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 124 transitions. [2022-12-13 21:15:51,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:51,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:15:51,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:15:51,777 INFO L87 Difference]: Start difference. First operand 94 states and 124 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:51,793 INFO L93 Difference]: Finished difference Result 105 states and 132 transitions. [2022-12-13 21:15:51,793 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 105 states and 132 transitions. [2022-12-13 21:15:51,794 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 26 [2022-12-13 21:15:51,795 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 105 states to 103 states and 130 transitions. [2022-12-13 21:15:51,795 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 43 [2022-12-13 21:15:51,795 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43 [2022-12-13 21:15:51,795 INFO L73 IsDeterministic]: Start isDeterministic. Operand 103 states and 130 transitions. [2022-12-13 21:15:51,796 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:51,796 INFO L218 hiAutomatonCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-12-13 21:15:51,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states and 130 transitions. [2022-12-13 21:15:51,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 94. [2022-12-13 21:15:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 93 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2022-12-13 21:15:51,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-12-13 21:15:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:15:51,801 INFO L428 stractBuchiCegarLoop]: Abstraction has 94 states and 121 transitions. [2022-12-13 21:15:51,801 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2022-12-13 21:15:51,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 121 transitions. [2022-12-13 21:15:51,801 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2022-12-13 21:15:51,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:51,801 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:51,802 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 5, 5, 4, 2, 2, 1, 1, 1] [2022-12-13 21:15:51,802 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-12-13 21:15:51,802 INFO L748 eck$LassoCheckResult]: Stem: 1885#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 1886#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 1890#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1899#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1900#L12-2 assume !(main_~i~0#1 <= 0); 1921#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1920#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1919#L12 assume !(main_~i~0#1 >= 10); 1918#L12-2 assume !(main_~i~0#1 <= 0); 1917#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1916#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1915#L12 assume !(main_~i~0#1 >= 10); 1914#L12-2 assume !(main_~i~0#1 <= 0); 1913#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1912#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1911#L12 assume !(main_~i~0#1 >= 10); 1907#L12-2 assume !(main_~i~0#1 <= 0); 1910#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1909#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1906#L12 assume !(main_~i~0#1 >= 10); 1905#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 1904#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1892#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1883#L12 assume !(main_~i~0#1 >= 10); 1962#L12-2 assume !(main_~i~0#1 <= 0); 1889#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 1882#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1884#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1876#L12-2 [2022-12-13 21:15:51,802 INFO L750 eck$LassoCheckResult]: Loop: 1876#L12-2 assume !(main_~i~0#1 <= 0); 1877#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 1896#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 1956#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 1876#L12-2 [2022-12-13 21:15:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1054469156, now seen corresponding path program 2 times [2022-12-13 21:15:51,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983006957] [2022-12-13 21:15:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:15:51,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:51,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983006957] [2022-12-13 21:15:51,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983006957] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:15:51,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064939456] [2022-12-13 21:15:51,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 21:15:51,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:15:51,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:51,853 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:15:51,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2022-12-13 21:15:51,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 21:15:51,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:15:51,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 21:15:51,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:51,903 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:15:51,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:15:51,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2022-12-13 21:15:51,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2022-12-13 21:15:51,955 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 41 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:15:51,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064939456] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:15:51,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:15:51,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2022-12-13 21:15:51,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483920829] [2022-12-13 21:15:51,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:15:51,956 INFO L753 eck$LassoCheckResult]: stem already infeasible [2022-12-13 21:15:51,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:51,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1606186, now seen corresponding path program 2 times [2022-12-13 21:15:51,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:51,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091302190] [2022-12-13 21:15:51,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:51,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,959 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:51,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:51,983 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:51,983 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:51,984 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:51,984 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:51,984 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 21:15:51,984 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:51,984 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:51,984 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:51,984 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-12-13 21:15:51,984 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:51,984 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:51,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,989 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,991 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:51,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:52,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:52,019 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 21:15:52,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:52,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:52,020 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:52,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2022-12-13 21:15:52,023 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 21:15:52,023 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:52,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2022-12-13 21:15:52,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:52,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:52,038 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:52,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2022-12-13 21:15:52,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 21:15:52,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 21:15:52,124 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 21:15:52,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:52,127 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 21:15:52,127 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 21:15:52,127 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 21:15:52,127 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 21:15:52,127 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 21:15:52,127 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:52,127 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 21:15:52,127 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 21:15:52,127 INFO L133 ssoRankerPreferences]: Filename of dumped script: UpAndDownIneq.c_Iteration9_Loop [2022-12-13 21:15:52,128 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 21:15:52,128 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 21:15:52,128 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:52,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:52,135 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:52,137 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 21:15:52,161 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 21:15:52,162 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 21:15:52,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:52,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:52,163 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:52,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2022-12-13 21:15:52,165 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 [2022-12-13 21:15:52,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 21:15:52,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 21:15:52,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 21:15:52,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 21:15:52,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 21:15:52,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 21:15:52,176 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 21:15:52,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 21:15:52,180 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 21:15:52,180 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 21:15:52,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 21:15:52,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:52,181 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 21:15:52,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2022-12-13 21:15:52,183 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 21:15:52,183 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 21:15:52,183 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 21:15:52,183 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = 1*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-12-13 21:15:52,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2022-12-13 21:15:52,186 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 21:15:52,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:52,226 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:52,226 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 148 states and 200 transitions. Complement of second has 7 states. [2022-12-13 21:15:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:52,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2022-12-13 21:15:52,242 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 28 letters. Loop has 4 letters. [2022-12-13 21:15:52,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:52,242 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:15:52,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:52,285 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:52,285 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,302 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 173 states and 212 transitions. Complement of second has 7 states. [2022-12-13 21:15:52,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:52,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2022-12-13 21:15:52,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 28 letters. Loop has 4 letters. [2022-12-13 21:15:52,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:52,303 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2022-12-13 21:15:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:15:52,346 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-12-13 21:15:52,346 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35 Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 121 transitions. cyclomatic complexity: 35. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 163 states and 221 transitions. Complement of second has 8 states. [2022-12-13 21:15:52,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-12-13 21:15:52,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2022-12-13 21:15:52,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 4 letters. [2022-12-13 21:15:52,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:52,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 32 letters. Loop has 4 letters. [2022-12-13 21:15:52,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:52,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 28 letters. Loop has 8 letters. [2022-12-13 21:15:52,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 21:15:52,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 221 transitions. [2022-12-13 21:15:52,364 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 28 [2022-12-13 21:15:52,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 115 states and 147 transitions. [2022-12-13 21:15:52,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2022-12-13 21:15:52,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2022-12-13 21:15:52,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 115 states and 147 transitions. [2022-12-13 21:15:52,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:52,365 INFO L218 hiAutomatonCegarLoop]: Abstraction has 115 states and 147 transitions. [2022-12-13 21:15:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states and 147 transitions. [2022-12-13 21:15:52,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 61. [2022-12-13 21:15:52,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 61 states have (on average 1.278688524590164) internal successors, (78), 60 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-12-13 21:15:52,367 INFO L240 hiAutomatonCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-12-13 21:15:52,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:52,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:15:52,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:15:52,368 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:52,431 INFO L93 Difference]: Finished difference Result 195 states and 238 transitions. [2022-12-13 21:15:52,431 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 195 states and 238 transitions. [2022-12-13 21:15:52,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 82 [2022-12-13 21:15:52,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 195 states to 182 states and 225 transitions. [2022-12-13 21:15:52,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2022-12-13 21:15:52,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2022-12-13 21:15:52,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 182 states and 225 transitions. [2022-12-13 21:15:52,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:52,433 INFO L218 hiAutomatonCegarLoop]: Abstraction has 182 states and 225 transitions. [2022-12-13 21:15:52,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states and 225 transitions. [2022-12-13 21:15:52,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 168. [2022-12-13 21:15:52,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.255952380952381) internal successors, (211), 167 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 211 transitions. [2022-12-13 21:15:52,436 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-12-13 21:15:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:15:52,436 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 211 transitions. [2022-12-13 21:15:52,436 INFO L335 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2022-12-13 21:15:52,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 211 transitions. [2022-12-13 21:15:52,437 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-12-13 21:15:52,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:52,437 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:52,437 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 21:15:52,438 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-12-13 21:15:52,438 INFO L748 eck$LassoCheckResult]: Stem: 3216#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 3217#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 3220#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3224#L12 assume !(main_~i~0#1 >= 10); 3229#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3227#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3212#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3213#L12 assume !(main_~i~0#1 >= 10); 3320#L12-2 assume !(main_~i~0#1 <= 0); 3321#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3316#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3274#L12 [2022-12-13 21:15:52,438 INFO L750 eck$LassoCheckResult]: Loop: 3274#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 3273#L12-2 assume !(main_~i~0#1 <= 0); 3211#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3214#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3215#L12 assume !(main_~i~0#1 >= 10); 3223#L12-2 assume !(main_~i~0#1 <= 0); 3315#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3314#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3313#L12 assume !(main_~i~0#1 >= 10); 3312#L12-2 assume !(main_~i~0#1 <= 0); 3311#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3310#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3309#L12 assume !(main_~i~0#1 >= 10); 3308#L12-2 assume !(main_~i~0#1 <= 0); 3307#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3306#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3305#L12 assume !(main_~i~0#1 >= 10); 3304#L12-2 assume !(main_~i~0#1 <= 0); 3303#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3302#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3301#L12 assume !(main_~i~0#1 >= 10); 3300#L12-2 assume !(main_~i~0#1 <= 0); 3299#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3298#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3297#L12 assume !(main_~i~0#1 >= 10); 3296#L12-2 assume !(main_~i~0#1 <= 0); 3295#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3294#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3293#L12 assume !(main_~i~0#1 >= 10); 3292#L12-2 assume !(main_~i~0#1 <= 0); 3291#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3290#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3289#L12 assume !(main_~i~0#1 >= 10); 3288#L12-2 assume !(main_~i~0#1 <= 0); 3287#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3286#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3285#L12 assume !(main_~i~0#1 >= 10); 3282#L12-2 assume !(main_~i~0#1 <= 0); 3284#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 3283#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3281#L12 assume !(main_~i~0#1 >= 10); 3278#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 3276#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3277#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3279#L12 assume !(main_~i~0#1 >= 10); 3280#L12-2 assume !(main_~i~0#1 <= 0); 3375#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3374#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3347#L12 assume !(main_~i~0#1 >= 10); 3208#L12-2 assume !(main_~i~0#1 <= 0); 3209#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3226#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3348#L12 assume !(main_~i~0#1 >= 10); 3373#L12-2 assume !(main_~i~0#1 <= 0); 3372#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3371#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3370#L12 assume !(main_~i~0#1 >= 10); 3369#L12-2 assume !(main_~i~0#1 <= 0); 3368#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3367#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3366#L12 assume !(main_~i~0#1 >= 10); 3365#L12-2 assume !(main_~i~0#1 <= 0); 3364#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3363#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3362#L12 assume !(main_~i~0#1 >= 10); 3361#L12-2 assume !(main_~i~0#1 <= 0); 3360#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3359#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3358#L12 assume !(main_~i~0#1 >= 10); 3357#L12-2 assume !(main_~i~0#1 <= 0); 3356#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3355#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3354#L12 assume !(main_~i~0#1 >= 10); 3353#L12-2 assume !(main_~i~0#1 <= 0); 3352#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3351#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3350#L12 assume !(main_~i~0#1 >= 10); 3222#L12-2 assume !(main_~i~0#1 <= 0); 3349#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 3275#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 3274#L12 [2022-12-13 21:15:52,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash 474307092, now seen corresponding path program 1 times [2022-12-13 21:15:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141484521] [2022-12-13 21:15:52,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:52,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 1 times [2022-12-13 21:15:52,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737368120] [2022-12-13 21:15:52,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:52,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,465 INFO L85 PathProgramCache]: Analyzing trace with hash -68907892, now seen corresponding path program 3 times [2022-12-13 21:15:52,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582855134] [2022-12-13 21:15:52,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:52,520 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:52,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:52,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582855134] [2022-12-13 21:15:52,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582855134] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:15:52,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036704642] [2022-12-13 21:15:52,521 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 21:15:52,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:15:52,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:52,522 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:15:52,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2022-12-13 21:15:52,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 21:15:52,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:15:52,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:15:52,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:52,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2022-12-13 21:15:52,576 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:52,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:15:52,602 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 202 proven. 3 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:52,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036704642] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:15:52,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:15:52,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-12-13 21:15:52,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628271891] [2022-12-13 21:15:52,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:15:52,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:52,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:15:52,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:15:52,918 INFO L87 Difference]: Start difference. First operand 168 states and 211 transitions. cyclomatic complexity: 46 Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:52,949 INFO L93 Difference]: Finished difference Result 179 states and 197 transitions. [2022-12-13 21:15:52,949 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 179 states and 197 transitions. [2022-12-13 21:15:52,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-12-13 21:15:52,952 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 179 states to 175 states and 193 transitions. [2022-12-13 21:15:52,952 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 85 [2022-12-13 21:15:52,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 85 [2022-12-13 21:15:52,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 175 states and 193 transitions. [2022-12-13 21:15:52,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:52,953 INFO L218 hiAutomatonCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-12-13 21:15:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states and 193 transitions. [2022-12-13 21:15:52,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 168. [2022-12-13 21:15:52,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 168 states have (on average 1.1011904761904763) internal successors, (185), 167 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 185 transitions. [2022-12-13 21:15:52,956 INFO L240 hiAutomatonCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-12-13 21:15:52,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:15:52,957 INFO L428 stractBuchiCegarLoop]: Abstraction has 168 states and 185 transitions. [2022-12-13 21:15:52,957 INFO L335 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2022-12-13 21:15:52,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 168 states and 185 transitions. [2022-12-13 21:15:52,957 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-12-13 21:15:52,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:52,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:52,958 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 6, 6, 5, 1, 1, 1] [2022-12-13 21:15:52,958 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-12-13 21:15:52,958 INFO L748 eck$LassoCheckResult]: Stem: 4116#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 4117#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 4121#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4133#L12 assume !(main_~i~0#1 >= 10); 4129#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4126#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4127#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4262#L12 assume !(main_~i~0#1 >= 10); 4261#L12-2 assume !(main_~i~0#1 <= 0); 4124#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4125#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4260#L12 assume !(main_~i~0#1 >= 10); 4258#L12-2 assume !(main_~i~0#1 <= 0); 4259#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4253#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4122#L12 assume !(main_~i~0#1 >= 10); 4108#L12-2 assume !(main_~i~0#1 <= 0); 4109#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4257#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4256#L12 assume !(main_~i~0#1 >= 10); 4255#L12-2 assume !(main_~i~0#1 <= 0); 4254#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4112#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4113#L12 assume !(main_~i~0#1 >= 10); 4275#L12-2 assume !(main_~i~0#1 <= 0); 4274#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4263#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4176#L12 [2022-12-13 21:15:52,958 INFO L750 eck$LassoCheckResult]: Loop: 4176#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 4175#L12-2 assume !(main_~i~0#1 <= 0); 4120#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4114#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4115#L12 assume !(main_~i~0#1 >= 10); 4110#L12-2 assume !(main_~i~0#1 <= 0); 4111#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4252#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4251#L12 assume !(main_~i~0#1 >= 10); 4250#L12-2 assume !(main_~i~0#1 <= 0); 4249#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4248#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4247#L12 assume !(main_~i~0#1 >= 10); 4246#L12-2 assume !(main_~i~0#1 <= 0); 4245#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4244#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4243#L12 assume !(main_~i~0#1 >= 10); 4242#L12-2 assume !(main_~i~0#1 <= 0); 4241#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4240#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4239#L12 assume !(main_~i~0#1 >= 10); 4238#L12-2 assume !(main_~i~0#1 <= 0); 4237#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4236#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4235#L12 assume !(main_~i~0#1 >= 10); 4234#L12-2 assume !(main_~i~0#1 <= 0); 4233#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4232#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4231#L12 assume !(main_~i~0#1 >= 10); 4230#L12-2 assume !(main_~i~0#1 <= 0); 4229#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4228#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4227#L12 assume !(main_~i~0#1 >= 10); 4226#L12-2 assume !(main_~i~0#1 <= 0); 4225#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4224#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4223#L12 assume !(main_~i~0#1 >= 10); 4220#L12-2 assume !(main_~i~0#1 <= 0); 4222#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 4221#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4219#L12 assume !(main_~i~0#1 >= 10); 4218#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 4215#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4217#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4216#L12 assume !(main_~i~0#1 >= 10); 4214#L12-2 assume !(main_~i~0#1 <= 0); 4213#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4212#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4211#L12 assume !(main_~i~0#1 >= 10); 4210#L12-2 assume !(main_~i~0#1 <= 0); 4209#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4207#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4205#L12 assume !(main_~i~0#1 >= 10); 4203#L12-2 assume !(main_~i~0#1 <= 0); 4201#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4199#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4197#L12 assume !(main_~i~0#1 >= 10); 4195#L12-2 assume !(main_~i~0#1 <= 0); 4193#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4191#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4189#L12 assume !(main_~i~0#1 >= 10); 4187#L12-2 assume !(main_~i~0#1 <= 0); 4186#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4177#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4178#L12 assume !(main_~i~0#1 >= 10); 4188#L12-2 assume !(main_~i~0#1 <= 0); 4208#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4206#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4204#L12 assume !(main_~i~0#1 >= 10); 4202#L12-2 assume !(main_~i~0#1 <= 0); 4200#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4198#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4196#L12 assume !(main_~i~0#1 >= 10); 4194#L12-2 assume !(main_~i~0#1 <= 0); 4192#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4190#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4183#L12 assume !(main_~i~0#1 >= 10); 4184#L12-2 assume !(main_~i~0#1 <= 0); 4264#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 4185#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 4176#L12 [2022-12-13 21:15:52,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1514411024, now seen corresponding path program 2 times [2022-12-13 21:15:52,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531891293] [2022-12-13 21:15:52,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,963 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,966 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:52,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1617023097, now seen corresponding path program 2 times [2022-12-13 21:15:52,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482101940] [2022-12-13 21:15:52,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,974 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:52,980 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:52,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:52,981 INFO L85 PathProgramCache]: Analyzing trace with hash -883489176, now seen corresponding path program 4 times [2022-12-13 21:15:52,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:52,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086738605] [2022-12-13 21:15:52,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:52,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:15:53,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:53,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:15:53,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086738605] [2022-12-13 21:15:53,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086738605] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:15:53,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731384607] [2022-12-13 21:15:53,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 21:15:53,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:15:53,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:15:53,086 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:15:53,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2022-12-13 21:15:53,130 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 21:15:53,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 21:15:53,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 21:15:53,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:15:53,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:53,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:15:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1326 backedges. 530 proven. 55 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-12-13 21:15:53,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731384607] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:15:53,235 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:15:53,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2022-12-13 21:15:53,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635030320] [2022-12-13 21:15:53,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:15:53,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:15:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:15:53,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:15:53,574 INFO L87 Difference]: Start difference. First operand 168 states and 185 transitions. cyclomatic complexity: 21 Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:15:53,647 INFO L93 Difference]: Finished difference Result 214 states and 229 transitions. [2022-12-13 21:15:53,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 214 states and 229 transitions. [2022-12-13 21:15:53,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-12-13 21:15:53,649 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 214 states to 208 states and 223 transitions. [2022-12-13 21:15:53,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2022-12-13 21:15:53,650 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 194 [2022-12-13 21:15:53,650 INFO L73 IsDeterministic]: Start isDeterministic. Operand 208 states and 223 transitions. [2022-12-13 21:15:53,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-12-13 21:15:53,650 INFO L218 hiAutomatonCegarLoop]: Abstraction has 208 states and 223 transitions. [2022-12-13 21:15:53,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states and 223 transitions. [2022-12-13 21:15:53,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 167. [2022-12-13 21:15:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 167 states have (on average 1.089820359281437) internal successors, (182), 166 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 21:15:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 182 transitions. [2022-12-13 21:15:53,653 INFO L240 hiAutomatonCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-12-13 21:15:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:15:53,654 INFO L428 stractBuchiCegarLoop]: Abstraction has 167 states and 182 transitions. [2022-12-13 21:15:53,654 INFO L335 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2022-12-13 21:15:53,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 167 states and 182 transitions. [2022-12-13 21:15:53,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 81 [2022-12-13 21:15:53,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 21:15:53,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 21:15:53,656 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 21:15:53,656 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [20, 19, 19, 10, 10, 1, 1] [2022-12-13 21:15:53,656 INFO L748 eck$LassoCheckResult]: Stem: 5151#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 5152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~i~0#1, main_~up~0#1;havoc main_~i~0#1;havoc main_~up~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~up~0#1 := 0; 5153#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5166#L12 assume !(main_~i~0#1 >= 10); 5164#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 5162#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5161#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5204#L12 assume !(main_~i~0#1 >= 10); 5203#L12-2 assume !(main_~i~0#1 <= 0); 5202#L15-1 [2022-12-13 21:15:53,656 INFO L750 eck$LassoCheckResult]: Loop: 5202#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5201#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5200#L12 assume !(main_~i~0#1 >= 10); 5199#L12-2 assume !(main_~i~0#1 <= 0); 5198#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5197#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5196#L12 assume !(main_~i~0#1 >= 10); 5195#L12-2 assume !(main_~i~0#1 <= 0); 5194#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5193#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5192#L12 assume !(main_~i~0#1 >= 10); 5191#L12-2 assume !(main_~i~0#1 <= 0); 5190#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5189#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5188#L12 assume !(main_~i~0#1 >= 10); 5187#L12-2 assume !(main_~i~0#1 <= 0); 5186#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5185#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5184#L12 assume !(main_~i~0#1 >= 10); 5183#L12-2 assume !(main_~i~0#1 <= 0); 5182#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5181#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5180#L12 assume !(main_~i~0#1 >= 10); 5179#L12-2 assume !(main_~i~0#1 <= 0); 5178#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5177#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5176#L12 assume !(main_~i~0#1 >= 10); 5175#L12-2 assume !(main_~i~0#1 <= 0); 5174#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5173#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5172#L12 assume !(main_~i~0#1 >= 10); 5171#L12-2 assume !(main_~i~0#1 <= 0); 5170#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5169#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5168#L12 assume main_~i~0#1 >= 10;main_~up~0#1 := 0; 5165#L12-2 assume !(main_~i~0#1 <= 0); 5146#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5149#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5150#L12 assume !(main_~i~0#1 >= 10); 5245#L12-2 assume !(main_~i~0#1 <= 0); 5244#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5243#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5242#L12 assume !(main_~i~0#1 >= 10); 5241#L12-2 assume !(main_~i~0#1 <= 0); 5240#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5239#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5238#L12 assume !(main_~i~0#1 >= 10); 5237#L12-2 assume !(main_~i~0#1 <= 0); 5236#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5235#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5234#L12 assume !(main_~i~0#1 >= 10); 5233#L12-2 assume !(main_~i~0#1 <= 0); 5232#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5231#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5230#L12 assume !(main_~i~0#1 >= 10); 5229#L12-2 assume !(main_~i~0#1 <= 0); 5228#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5227#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5226#L12 assume !(main_~i~0#1 >= 10); 5225#L12-2 assume !(main_~i~0#1 <= 0); 5224#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5223#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5222#L12 assume !(main_~i~0#1 >= 10); 5221#L12-2 assume !(main_~i~0#1 <= 0); 5220#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5219#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5218#L12 assume !(main_~i~0#1 >= 10); 5217#L12-2 assume !(main_~i~0#1 <= 0); 5216#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5215#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5214#L12 assume !(main_~i~0#1 >= 10); 5213#L12-2 assume !(main_~i~0#1 <= 0); 5212#L15-1 assume !(main_~up~0#1 >= 1);main_~i~0#1 := main_~i~0#1 - 1; 5211#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5210#L12 assume !(main_~i~0#1 >= 10); 5208#L12-2 assume main_~i~0#1 <= 0;main_~up~0#1 := 1; 5207#L15-1 assume main_~up~0#1 >= 1;main_~i~0#1 := 1 + main_~i~0#1; 5205#L18-1 assume !!(0 <= main_~i~0#1 && main_~i~0#1 <= 10); 5206#L12 assume !(main_~i~0#1 >= 10); 5209#L12-2 assume !(main_~i~0#1 <= 0); 5202#L15-1 [2022-12-13 21:15:53,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:53,657 INFO L85 PathProgramCache]: Analyzing trace with hash 644068259, now seen corresponding path program 3 times [2022-12-13 21:15:53,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:53,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199819914] [2022-12-13 21:15:53,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:53,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,660 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:53,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,662 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:53,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:53,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1888138361, now seen corresponding path program 3 times [2022-12-13 21:15:53,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:53,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659950282] [2022-12-13 21:15:53,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:53,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:53,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,672 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,682 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:15:53,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1126640613, now seen corresponding path program 5 times [2022-12-13 21:15:53,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:15:53,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095486857] [2022-12-13 21:15:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:15:53,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:15:53,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,693 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:53,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:15:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:54,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:15:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:15:54,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 09:15:54 BoogieIcfgContainer [2022-12-13 21:15:54,068 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 21:15:54,068 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:15:54,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:15:54,069 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:15:54,069 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:15:48" (3/4) ... [2022-12-13 21:15:54,070 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 21:15:54,098 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:15:54,098 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:15:54,098 INFO L158 Benchmark]: Toolchain (without parser) took 5632.57ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 94.7MB in the beginning and 113.6MB in the end (delta: -18.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-12-13 21:15:54,099 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:15:54,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 160.71ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 85.4MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:15:54,099 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.60ms. Allocated memory is still 125.8MB. Free memory was 85.4MB in the beginning and 84.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:15:54,099 INFO L158 Benchmark]: Boogie Preprocessor took 12.94ms. Allocated memory is still 125.8MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:15:54,100 INFO L158 Benchmark]: RCFGBuilder took 170.71ms. Allocated memory is still 125.8MB. Free memory was 83.0MB in the beginning and 74.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:15:54,100 INFO L158 Benchmark]: BuchiAutomizer took 5233.41ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.6MB in the beginning and 117.7MB in the end (delta: -43.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:15:54,100 INFO L158 Benchmark]: Witness Printer took 29.73ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 113.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:15:54,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 97.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 160.71ms. Allocated memory is still 125.8MB. Free memory was 94.6MB in the beginning and 85.4MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.60ms. Allocated memory is still 125.8MB. Free memory was 85.4MB in the beginning and 84.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 12.94ms. Allocated memory is still 125.8MB. Free memory was 84.2MB in the beginning and 83.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 170.71ms. Allocated memory is still 125.8MB. Free memory was 83.0MB in the beginning and 74.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 5233.41ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 74.6MB in the beginning and 117.7MB in the end (delta: -43.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.73ms. Allocated memory is still 151.0MB. Free memory was 117.7MB in the beginning and 113.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. 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 15 terminating modules (8 trivial, 6 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 1 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i and consists of 4 locations. One deterministic module has affine ranking function -2 * i + 19 and consists of 4 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 8 modules have a trivial ranking function, the largest among these consists of 12 locations. The remainder module has 167 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.1s and 12 iterations. TraceHistogramMax:20. Analysis of lassos took 4.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 15. Automata minimization 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 245 StatesRemovedByMinimization, 15 NontrivialMinimizations. 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 [6, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 172 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 163 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 538 IncrementalHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 135 mSDtfsCounter, 538 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT3 conc2 concLT1 SILN0 SILU0 SILI2 SILT3 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax165 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq143 hnf94 smp100 dnf100 smp100 tf110 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 18]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i >= 10) VAL [i=0, up=0] [L15] COND TRUE i <= 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up >= 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i >= 10) VAL [i=1, up=1] [L15] COND FALSE !(i <= 0) VAL [i=1, up=1] Loop: [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 18]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int up; [L8] i = __VERIFIER_nondet_int() [L9] up = 0 VAL [up=0] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=0, up=0] [L12] COND FALSE !(i >= 10) VAL [i=0, up=0] [L15] COND TRUE i <= 0 [L16] up = 1 VAL [i=0, up=1] [L18] COND TRUE up >= 1 [L19] i = i+1 VAL [i=1, up=1] [L11] COND TRUE 0 <= i && i <= 10 VAL [i=1, up=1] [L12] COND FALSE !(i >= 10) VAL [i=1, up=1] [L15] COND FALSE !(i <= 0) VAL [i=1, up=1] Loop: [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND TRUE i >= 10 [L13] up = 0 [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) [L18] COND FALSE !(up >= 1) [L21] i = i-1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND TRUE i <= 0 [L16] up = 1 [L18] COND TRUE up >= 1 [L19] i = i+1 [L11] COND TRUE 0 <= i && i <= 10 [L12] COND FALSE !(i >= 10) [L15] COND FALSE !(i <= 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 21:15:54,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2022-12-13 21:15:54,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Ended with exit code 0 [2022-12-13 21:15:54,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2022-12-13 21:15:54,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-12-13 21:15:54,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91711948-b258-455c-bd15-5e0d56c529de/bin/uautomizer-uyxdKDjOR8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)